Dissertations / Theses: 'Visual mode'

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Chou, Chien. "Effects of visual information presentation mode and testing mode on skill analysis training in an interactive video setting /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487682558444435.

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Engell, Jessen Maria Elisabeth. "Conversion as a narrative, visual, and stylistic mode in William Blake's works." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:0238fceb-5538-4a7b-903d-5952bf777286.

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This study suggests that Blake’s works can be understood as ‘conversion works,’ which seek to facilitate a broadly defined perceptual, spiritual, and intellectual conversion in the reader/viewer. This conversion is manifested in various ways in the texts, images, narrative structures, and style of Blake’s works. Part I discusses the genesis of the narrative of Blake’s own conversion and introduces critical discussions of the conversion narrative as a genre, showing how the predominant interpretative paradigm of the conversion narrative (as an autobiographical reportage describing a one-off experience) is challenged by the shapes that conversion narratives have taken throughout history, suggesting a broader definition of conversion literature. In Part II, I analyze Blake’s depictions of Christ in his illustrations to Night Thoughts in relation to eighteenth-century Moravian art, and the way in which they are later used in The Four Zoas. I discuss how Milton can be understood as a multilayered conversion narrative, how the manifestation of conversion in Jakob Boehme’s works might have influenced it, and how a related conversion is manifested in Jerusalem (1804-20). Finally, I show how Blake represents conversion in his illustrations to Pilgrim’s Progress and the Book of Job, emphasizing the importance of vision and the inclusion of protagonist and viewer in the divine body. Together, these analyses show conversion as a gradually developing presence in Blake’s works, exploring the conversion moment as a way into the shared salvific space of the body of Christ for fictive characters, author, and reader or viewer together.

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Muñoz, Benavent Pau. "Robot Visual Servoing Using Discontinuous Control." Doctoral thesis, Universitat Politècnica de València, 2017. http://hdl.handle.net/10251/90430.

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This work presents different proposals to deal with common problems in robot visual servoing based on the application of discontinuous control methods. The feasibility and effectiveness of the proposed approaches are substantiated by simulation results and real experiments using a 6R industrial manipulator. The main contributions are: - Geometric invariance using sliding mode control (Chapter 3): the defined higher-order invariance is used by the proposed approaches to tackle problems in visual servoing. Proofs of invariance condition are presented. - Fulfillment of constraints in visual servoing (Chapter 4): the proposal uses sliding mode methods to satisfy mechanical and visual constraints in visual servoing, while a secondary task is considered to properly track the target object. The main advantages of the proposed approach are: low computational cost, robustness and fully utilization of the allowed space for the constraints. - Robust auto tool change for industrial robots using visual servoing (Chapter 4): visual servoing and the proposed method for constraints fulfillment are applied to an automated solution for tool changing in industrial robots. The robustness of the proposed method is due to the control law of the visual servoing, which uses the information acquired by the vision system to close a feedback control loop. Furthermore, sliding mode control is simultaneously used in a prioritized level to satisfy the aforementioned constraints. Thus, the global control accurately places the tool in the warehouse, but satisfying the robot constraints. - Sliding mode controller for reference tracking (Chapter 5): an approach based on sliding mode control is proposed for reference tracking in robot visual servoing using industrial robot manipulators. The novelty of the proposal is the introduction of a sliding mode controller that uses a high-order discontinuous control signal, i.e., joint accelerations or joint jerks, in order to obtain a smoother behavior and ensure the robot system stability, which is demonstrated with a theoretical proof. - PWM and PFM for visual servoing in fully decoupled approaches (Chapter 6): discontinuous control based on pulse width and pulse frequency modulation is proposed for fully decoupled position based visual servoing approaches, in order to get the same convergence time for camera translation and rotation. Moreover, other results obtained in visual servoing applications are also described. Este trabajo presenta diferentes propuestas para tratar problemas habituales en el control de robots por realimentación visual, basadas en la aplicación de métodos de control discontinuos. La viabilidad y eficacia de las propuestas se fundamenta con resultados en simulación y con experimentos reales utilizando un robot manipulador industrial 6R. Las principales contribuciones son: - Invariancia geométrica utilizando control en modo deslizante (Capítulo 3): la invariancia de alto orden definida aquí es utilizada después por los métodos propuestos, para tratar problemas en control por realimentación visual. Se apuertan pruebas teóricas de la condición de invariancia. - Cumplimiento de restricciones en control por realimentación visual (Capítulo 4): esta propuesta utiliza métodos de control en modo deslizante para satisfacer restricciones mecánicas y visuales en control por realimentación visual, mientras una tarea secundaria se encarga del seguimiento del objeto. Las principales ventajas de la propuesta son: bajo coste computacional, robustez y plena utilización del espacio disponible para las restricciones. - Cambio de herramienta robusto para un robot industrial mediante control por realimentación visual (Capítulo 4): el control por realimentación visual y el método propuesto para el cumplimiento de las restricciones se aplican a una solución automatizada para el cambio de herramienta en robots industriales. La robustez de la propuesta radica en el uso del control por realimentación visual, que utiliza información del sistema de visión para cerrar el lazo de control. Además, el control en modo deslizante se utiliza simultáneamente en un nivel de prioridad superior para satisfacer las restricciones. Así pues, el control es capaz de dejar la herramienta en el intercambiador de herramientas de forma precisa, a la par que satisface las restricciones del robot. - Controlador en modo deslizante para seguimiento de referencia (Capítulo 5): se propone un enfoque basado en el control en modo deslizante para seguimiento de referencia en robots manipuladores industriales controlados por realimentación visual. La novedad de la propuesta radica en la introducción de un controlador en modo deslizante que utiliza la señal de control discontinua de alto orden, i.e. aceleraciones o jerks de las articulaciones, para obtener un comportamiento más suave y asegurar la estabilidad del sistema robótico, lo que se demuestra con una prueba teórica. - Control por realimentación visual mediante PWM y PFM en métodos completamente desacoplados (Capítulo 6): se propone un control discontinuo basado en modulación del ancho y frecuencia del pulso para métodos completamente desacoplados de control por realimentación visual basados en posición, con el objetivo de conseguir el mismo tiempo de convergencia para los movimientos de rotación y traslación de la cámara . Además, se presentan también otros resultados obtenidos en aplicaciones de control por realimentación visual. Aquest treball presenta diferents propostes per a tractar problemes habituals en el control de robots per realimentació visual, basades en l'aplicació de mètodes de control discontinus. La viabilitat i eficàcia de les propostes es fonamenta amb resultats en simulació i amb experiments reals utilitzant un robot manipulador industrial 6R. Les principals contribucions són: - Invariància geomètrica utilitzant control en mode lliscant (Capítol 3): la invariància d'alt ordre definida ací és utilitzada després pels mètodes proposats, per a tractar problemes en control per realimentació visual. S'aporten proves teòriques de la condició d'invariància. - Compliment de restriccions en control per realimentació visual (Capítol 4): aquesta proposta utilitza mètodes de control en mode lliscant per a satisfer restriccions mecàniques i visuals en control per realimentació visual, mentre una tasca secundària s'encarrega del seguiment de l'objecte. Els principals avantatges de la proposta són: baix cost computacional, robustesa i plena utilització de l'espai disponible per a les restriccions. - Canvi de ferramenta robust per a un robot industrial mitjançant control per realimentació visual (Capítol 4): el control per realimentació visual i el mètode proposat per al compliment de les restriccions s'apliquen a una solució automatitzada per al canvi de ferramenta en robots industrials. La robustesa de la proposta radica en l'ús del control per realimentació visual, que utilitza informació del sistema de visió per a tancar el llaç de control. A més, el control en mode lliscant s'utilitza simultàniament en un nivell de prioritat superior per a satisfer les restriccions. Així doncs, el control és capaç de deixar la ferramenta en l'intercanviador de ferramentes de forma precisa, a la vegada que satisfà les restriccions del robot. - Controlador en mode lliscant per a seguiment de referència (Capítol 5): es proposa un enfocament basat en el control en mode lliscant per a seguiment de referència en robots manipuladors industrials controlats per realimentació visual. La novetat de la proposta radica en la introducció d'un controlador en mode lliscant que utilitza senyal de control discontínua d'alt ordre, i.e. acceleracions o jerks de les articulacions, per a obtindre un comportament més suau i assegurar l'estabilitat del sistema robòtic, la qual cosa es demostra amb una prova teòrica. - Control per realimentació visual mitjançant PWM i PFM en mètodes completament desacoblats (Capítol 6): es proposa un control discontinu basat en modulació de l'ample i la freqüència del pols per a mètodes completament desacoblats de control per realimentació visual basats en posició, amb l'objectiu d'aconseguir el mateix temps de convergència per als moviments de rotació i translació de la càmera. A més, es presenten també altres resultats obtinguts en aplicacions de control per realimentació visual. Muñoz Benavent, P. (2017). Robot Visual Servoing Using Discontinuous Control [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/90430 TESIS

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Maiti, Dipayan. "Multiset Model Selection and Averaging, and Interactive Storytelling." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/28563.

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The Multiset Sampler [Leman et al., 2009] has previously been deployed and developed for efficient sampling from complex stochastic processes. We extend the sampler and the surrounding theory to model selection problems. In such problems efficient exploration of the model space becomes a challenge since independent and ad-hoc proposals might not be able to jointly propose multiple parameter sets which correctly explain a new pro- posed model. In order to overcome this we propose a multiset on the model space to en- able efficient exploration of multiple model modes with almost no tuning. The Multiset Model Selection (MSMS) framework is based on independent priors for the parameters and model indicators on variables. We show that posterior model probabilities can be easily obtained from multiset averaged posterior model probabilities in MSMS. We also obtain typical Bayesian model averaged estimates for the parameters from MSMS. We apply our algorithm to linear regression where it allows easy moves between parame- ter modes of different models, and in probit regression where it allows jumps between widely varying model specific covariance structures in the latent space of a hierarchical model. The Storytelling algorithm [Kumar et al., 2006] constructs stories by discovering and con- necting latent connections between documents in a network. Such automated algorithms often do not agree with userâ s mental map of the data. Hence systems that incorporate feedback through visual interaction from the user are of immediate importance. We pro- pose a visual analytic framework in which such interactions are naturally incorporated in to the existing Storytelling algorithm through a redefinition of the latent topic space used in the similarity measure of the network. The document network can be explored us- ing the newly learned normalized topic weights for each document. Hence our algorithm augments the limitations of human sensemaking capabilities in large document networks by providing a collaborative framework between the underlying model and the user. Our formulation of the problem is a supervised topic modeling problem where the supervi- sion is based on relationships imposed by the user as a set of inequalities derived from tolerances on edge costs from inverse shortest path problem. We show a probabilistic modeling of the relationships based on auxiliary variables and propose a Gibbs sampling based strategy. We provide detailed results from a simulated data and the Atlantic Storm data set. Ph. D.

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Yamada-Rice, D. "An enquiry into young children's interaction with, and comprehension of, the visual mode in Japan." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/3773/.

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Söderström, Carina. "Garderobstaktik som visuell retorik : En kvalitativ studie av tre Youtube-influencers argumentation för en hållbar personlig still." Thesis, Uppsala universitet, Konstvetenskapliga institutionen, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-444268.

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Under det senaste årtiondet har sociala medier använts av mode-influencers till att sprida sina budskap om personlig stil. Med de senaste årens klimatintresse har början till ett skifte skett från att uppmuntra till konsumtion till att i stället skapa medvetenhet om textilindustrins negativa påverkan på miljön. Syftet med denna masteruppsats är att göra en visuell kulturstudie av tre av dessa influencers argumentation genom de filmer de publicerar på Youtube. Den undersöker hur de använder visuell retorik i filmerna för att göra ett trovärdigt intryck och på så vis locka till sig en allt större följarskara och få betalda samarbeten, utan att uppmuntra till onödig konsumtion. I studien ingår sammanlagt nio filmer som publicerades under 2019 och 2020. Filmerna analyseras med hjälp av visuell retorik som kvalitativ metod och tolkas med visuell retorik och produktion av social och kulturell identitet som teoretiska utgångspunkter. En analys av tittarnas kommentarer på filmerna används för att validera resultatet av tolkningen. De tre studerade Youtube-kanalerna ökade sitt antal prenumeranter med i genomsnitt 64 % under den tid som studien pågick och alla tre influencers får betalda samarbeten som de helt eller delvis kan försörja sig på. De undersöker noga de företag de inleder samarbete med och undviker varumärken som inte är accepterade av deras tittare som etiska och miljömässigt hållbara. Alla de tre influencers som ingår i studien använder samma typ av visuell huvudargumentation för att övertyga sina tittare om vikten av en hållbar garderob. De visar exempel på hur de själva kombinerar sina egna kläder på nya sätt för att skapa en personlig stil utan att behöva köpa nytt. Studien visar dock att filmernas innehåll är mindre viktigt än hur trovärdig influencern uppfattas av sina tittare. En tolkning av tittarnas kommentarer ger att de i första hand är intresserade av hur influencern producerar sin identitet med hjälp av kläder och utseende, för att själva inspireras till att hitta sin personliga stil. Genom att efterlikna deras stil kommunicerar de grupptillhörighet med den influencer de följer och får på så sätt del av samma sociala status. During the last decade, fashion influencers have used social media channels to spread the word about personal style. Due to the global focus on the climate change the content has begun to shift from a consumption culture to creating awareness about the negative influence of the textile industry on the environment. The purpose of this study is to examine three of these influencers’ argumentation in the videos they publish on YouTube. It investigates how the influencers use visual rhetoric to make a trustworthy impression to increase the number of followers and get paid sponsorships, without supporting unnecessary consumption. The study investigates a total of nine videos published on YouTube during 2019 and 2020. The visual content is processed using a qualitative method and analysed with a focus on the theoretical perspectives of visual rhetoric and production of social identity. The written follower comments, of the videos, are used to validate the result of the analysis. The three YouTube channels increased the number of followers with an average of 64 % during the study and the influencers are all in paid collaborations that represent all, or a part of, their total income. They thoroughly research the company before adding a new sponsorship and avoid brands that are not accepted by their followers to be ethical and sustainable. All the three influencers participating in the study use the same principal visual rhetoric arguments to convince the followers of the advantage of a sustainable style. They show a vast variety of outfit combinations using the limited amount of clothes in their wardrobes to create a personal style without the need of adding new clothes. The result of the study indicates, however, that the content of the videos is of less importance than how trustworthy the influencer is perceived by the followers. An analysis of the viewer comments suggest that their primary interest is to get inspiration from how the influencer produces identity through dress and appearance. By emulating their personal style, the followers hope to gain membership of the influencer’s community and achieve similar social status.

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Söderström, Carina. "Garderobstaktik som visuell retorik : En kvalitativ studie av tre Youtube-influencers argumentation för en hållbar personlig stil." Thesis, Uppsala universitet, Konstvetenskapliga institutionen, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-444268.

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Under det senaste årtiondet har sociala medier använts av mode-influencers till att sprida sina budskap om personlig stil. Med de senaste årens klimatintresse har början till ett skifte skett från att uppmuntra till konsumtion till att i stället skapa medvetenhet om textilindustrins negativa påverkan på miljön. Syftet med denna masteruppsats är att göra en visuell kulturstudie av tre av dessa influencers argumentation genom de filmer de publicerar på Youtube. Den undersöker hur de använder visuell retorik i filmerna för att göra ett trovärdigt intryck och på så vis locka till sig en allt större följarskara och få betalda samarbeten, utan att uppmuntra till onödig konsumtion. I studien ingår sammanlagt nio filmer som publicerades under 2019 och 2020. Filmerna analyseras med hjälp av visuell retorik som kvalitativ metod och tolkas med visuell retorik och produktion av social och kulturell identitet som teoretiska utgångspunkter. En analys av tittarnas kommentarer på filmerna används för att validera resultatet av tolkningen. De tre studerade Youtube-kanalerna ökade sitt antal prenumeranter med i genomsnitt 64 % under den tid som studien pågick och alla tre influencers får betalda samarbeten som de helt eller delvis kan försörja sig på. De undersöker noga de företag de inleder samarbete med och undviker varumärken som inte är accepterade av deras tittare som etiska och miljömässigt hållbara. Alla de tre influencers som ingår i studien använder samma typ av visuell huvudargumentation för att övertyga sina tittare om vikten av en hållbar garderob. De visar exempel på hur de själva kombinerar sina egna kläder på nya sätt för att skapa en personlig stil utan att behöva köpa nytt. Studien visar dock att filmernas innehåll är mindre viktigt än hur trovärdig influencern uppfattas av sina tittare. En tolkning av tittarnas kommentarer ger att de i första hand är intresserade av hur influencern producerar sin identitet med hjälp av kläder och utseende, för att själva inspireras till att hitta sin personliga stil. Genom att efterlikna deras stil kommunicerar de grupptillhörighet med den influencer de följer och får på så sätt del av samma sociala status. During the last decade, fashion influencers have used social media channels to spread the word about personal style. Due to the global focus on the climate change the content has begun to shift from a consumption culture to creating awareness about the negative influence of the textile industry on the environment. The purpose of this study is to examine three of these influencers’ argumentation in the videos they publish on YouTube. It investigates how the influencers use visual rhetoric to make a trustworthy impression to increase the number of followers and get paid sponsorships, without supporting unnecessary consumption. The study investigates a total of nine videos published on YouTube during 2019 and 2020. The visual content is processed using a qualitative method and analysed with a focus on the theoretical perspectives of visual rhetoric and production of social identity. The written follower comments, of the videos, are used to validate the result of the analysis. The three YouTube channels increased the number of followers with an average of 64 % during the study and the influencers are all in paid collaborations that represent all, or a part of, their total income. They thoroughly research the company before adding a new sponsorship and avoid brands that are not accepted by their followers to be ethical and sustainable. All the three influencers participating in the study use the same principal visual rhetoric arguments to convince the followers of the advantage of a sustainable style. They show a vast variety of outfit combinations using the limited amount of clothes in their wardrobes to create a personal style without the need of adding new clothes. The result of the study indicates, however, that the content of the videos is of less importance than how trustworthy the influencer is perceived by the followers. An analysis of the viewer comments suggest that their primary interest is to get inspiration from how the influencer produces identity through dress and appearance. By emulating their personal style, the followers hope to gain membership of the influencer’s community and achieve similar social status.

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Siganos, Ioannis. "Pulse mode light sensing using four-layer semiconductor structures and their application in neural networks." Thesis, Monterey, Calif. : Naval Postgraduate School, 2008. http://edocs.nps.edu/npspubs/scholarly/theses/2008/Dec/08Dec%5FSiganos.pdf.

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Thesis (M.S. in Applied Physics)--Naval Postgraduate School, December 2008. Thesis Advisor(s): Karunasiri, Gamani ; Tummala, Murali. "December 2008." Description based on title screen as viewed on January 29, 2009. Includes bibliographical references (p. 69-71). Also available in print.

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Childers, Chadwick T. "Instrument choice of fifth grade boys and girls aural and visual preference based on presentation mode." FIU Digital Commons, 2004. http://digitalcommons.fiu.edu/etd/2331.

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The general purpose of this research was to determine if a lesson including gender will influence the instrument selection process of fifth grade children. Subjects were two homogeneous groups of fifth grade students from Miami, Florida. Each group received a lesson concerning five acoustic musical instruments: the clarinet, flute, saxophone, trumpet, and drums with photos and music excerpts. The control group did not receive a gender lecture nor did the photographs depict anyone playing the instrument. Overwhelmingly, drums were the instrument of choice in both groups. As a result a second experiment was designed to replicate experiment 1, but drums were removed from the choices and the trombone was substituted as a "male' instrument. It was concluded that gender did have an effect on the instrument selection process in young children.

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Fitzpatrick, Dale Mary. "The effects of visual format and mode of presentation on nonnative speaker comprehension of verbal information." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/28223.

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The purpose of this study was to gather data on nonnative speakers' comprehension of spoken language presented via the audio mode (sound only) or the video mode (sound + picture). More specifically, the research examined the effects of three visual formats (or picture content)--contained in the video channel—on comprehension of verbal information carried in the audio channel of broadcast news stories. The three visual formats under investigation were: (1) high redundancy (HR): voice-over-film with similar verbal and visual content; (2) low redundancy (LR): voice-over-film with dissimilar verbal and visual content, and (3) talking head: newscaster only presentation, without film. A smaller follow-up study examined the effect of visuals with a group of subjects of higher second-language proficiency. The procedure utilized a between-and-within-subjects design and nine news stories videotaped from CBC television, categorized according to visual format. Stimulus news stories were presented to subjects via either the video or audio mode. After each story, actual comprehension o£ verbal information was measured using a test of cued-recall and perceived language comprehension was measured using a self-reporting question. In the video mode, subjects were also asked to rate the difficulty of each story. The results of an analysis of variance indicated that, under the conditions of the present study, subjects scored significantly higher on a test o£ cued recall when news stories were presented via the video mode. Significant differences were also found between language comprehension scores for each of the visual formats. Highest scores were obtained for the HR stories, and lowest scores for the TH stories. From the results of the follow-up study, it appears the comprehension-facilitating effect of visuals is not as strong for subjects of higher proficiency. Results are discussed in light of literature on media and learning, the relationship between aural and visual channels, visual format effects and television news, listening comprehension, and visual information processing. Implications and suggestions for further study are presented. Education, Faculty of Language and Literacy Education (LLED), Department of Graduate

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McDougall, Jenny Kay, and j. mcdougall@cqu edu au. "Changing mindsets: A study of Queensland primary teachers and the visual literacy initiative." Central Queensland University. Education, 2004. http://library-resources.cqu.edu.au./thesis/adt-QCQU/public/adt-QCQU20050502.120010.

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'Changing mindsets' is about how teachers are engaging with visual literacy the practices involved in understanding and creating visual texts. The concept of visual literacy, like other new literacies, has arisen in response to changing communication practices in developed, capitalist societies like Australia. This study addresses the ways in which teachers in primary schools are engaging with the visual literacy initiative in the context of the new arts syllabus (Years 1-10) in Queensland. Using a broadly poststructural approach, this thesis explored the changing mindsets implied by this curriculum initiative from three perspectives. The concept of preservation of self (Nias, 1987, 1993) was used to examine the personal dimension of change; the concept of trendy theory (Goodson, 1988, 1994, 1997) addressed the social and political agendas that drive curriculum reform; while the concept of multimodality (Kress, 2000a, 2000b, 2003a, 2003b) drew attention to the cultural values ascribed to different modes of communication. Semi-structured interviews were conducted with 26 primary teachers from 11 government schools in a regional centre in 2002. The discourse analysis method was used to analyse the data resulting from these interviews. The data showed that the official discourses featured in the new arts syllabus did not match the discourses used by practising teachers. Although there was some recognition of the significance of the visual mode, most teachers in this study were not aware of visual literacy. Significantly, the agency exercised by teachers in curriculum reform was shaped not only by their personal identities, but also by the levels of support that they experienced in their working environments. These findings have crucial implications for policy-makers in implementing curriculum change, particularly in the context of the new arts syllabus.

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Bouaouina, Hend. "L’événement abordé comme discours : approche sémiotique des arts de la scène dans le secteur de la mode." Thesis, Toulouse 2, 2017. http://www.theses.fr/2017TOU20117.

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Focalisée sur l’interaction entre Mode, événement, espace et corps, la thèse se propose de traiter le processus visuel, communicationnel et scénographique d’un défilé de Mode. Il s’agit d’une rencontre entre différents éléments constitutifs de l’événement de Mode, transformant l’action corporelle en des unités simultanées et concurrentes reparties dans l’espace et dans le temps. Dès lors, la représentation d’un défilé relève de l’enjeu entre réception, perception, interprétation et cognition des différentes pratiques artistiques qui participent à sa réalisation. En organisant ce travail, on a poursuivi une double visée : on introduit d'abord la paradigmatique d'éléments qui interviennent dans la composition d'un défilé de Mode et par la suite on passe à l'enchaînement syntagmatique du défilé en tant qu'événement à finalité médiatique. Pour cela, nous illustrons par deux corpus photographiques et filmiques les ressemblances et les oppositions entre deux modèles de défilés de Chanel. Enfin, on présente la manière de matérialiser le sens de l’événement en regroupant les pratiques spatiales et visuelles des défilés et de leur enchaînement pragmatique. Par cette analyse nous espérons contribuer à une meilleure compréhension de la nature profonde du discours de l’événement de Mode et de sa textualisation Focused on the interaction between Mode, event, space and body, the thesis proposes to treat the visual, communication and scenographic process of a fashion show. It is a meeting between different elements of an event of Fashion, transforming the body action in simultaneous and concurrent units, distributed in space and in time. Therefore, the representation of a fashion show is an issue between reception, perception, interpretation and cognition of different artistic practices. When organizing this work, we have pursued a double aiming: firstly we introduced the paradigmatic of elements involved in the composition of a fashion show then we have focused on the sequence syntagmatic of the Fashion show as an event to media purpose. Since then, we have illustrated by two photographic and filmic corpuses the similarities and the oppositions between these two models of a Fashion show Chanel. Finally, we have presented the way to materialize the meaning of the event gathering the spatial and visual practices of the parades and of their pragmatic sequence. By this analysis we hope to contribute to a better comprehension of the profound speech nature of the Event Fashion and its textualisation

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Libler, Rebecca W. "A study of the effectiveness of interactive television as the primary mode of instruction in selected high school physics classes." Virtual Press, 1991. http://liblink.bsu.edu/uhtbin/catkey/776632.

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The study gathered and analyzed data about the impact of interactive television on student achievement and attitude in high school physics classes. Students enrolled in a distance learning program using interactive television to teach physics were the study population. Data were obtained from eighty-five students at six remote sites and the originating site. Z-tests of the mean scores obtained by the study population on each section of the American Association of Physics Teachers/National Science Teachers Association (AAPT/NSTA) Introductory Physics Examination Version 1988R indicated the study population achieved at a level significantly lower than the test norming population in all four areas analyzed. A one-way analysis of variance (ANOVA Model) was completed on achievement data arranged by group according to type of classroom monitoring. Group 1 had certified teachers acting as on-site facilitators; Group 2 had no on-site facilitators. There was no significant difference (p > .05) in achievement between the two groups. A survey was administered to determine the attitudes of students toward interactive television as the method of instruction and to assess student attitude toward the course content. Frequency and percentage distributions of responses to each question on the student survey were descriptive of student attitude. A one-way analysis of variance (ANOVA Model) failed to demonstrate any significant difference at the .05 level in attitudes between the group in classrooms monitored by certified teachers and the group in classrooms which were self-monitored. Students enrolled in the interactive television physics course held slightly more positive than negative attitudes toward interactive television as the method of instruction. Student attitude toward interactive television was less positive after taking the course than prior to taking the course. Students in interactive television classes generally held positive attitudes toward the content of physics. Department of Educational Leadership

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Liljengård, Anton. "Filstorleksoptimering för retuscheringsarbete : Enundersökning med fokus på moderetuschering." Thesis, Högskolan Dalarna, Grafisk teknologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:du-25077.

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Under bearbetning av bilder idag förekommer ofta stora filer. Med den effektiva teknologiska utvecklingen har efterfrågan på kvalitet växt allt mer. I en värld där fotografens kamera har blivit mer högupplöst har även bilders filstorlek blivit större. Målet med detta examensarbete har varit att komma fram med en rekommendation för hur man arbetar mot en liten filstorlek. Rekommendationen är till för retuschörer som arbetar inom modebranschen och med bilder ämnade för print. Arbetet har försökt åskådliggöra vad under retuscheringens arbetsgång som orsakar en större filstorlek. Detta genom att kontakta retuschörer som ofta arbetar med modebilder. Fokus har legat på lager i Photoshop samt editeringsalternativ för retuschören. Det framkom att retuschörer gjorde liknande åtgärder för att få en liten filstorlek, och att en viss likhet kan urskiljas i deras arbetssätt kring vad som ökade filstorlek. Det framkom även att filstorleken påverkas mest av hur pixellager och masker ser ut, till skillnad från justeringslager. During the processing of pictures today the file size often becomes large. An effective technological development has made the demand for quality higher. In a world where the photographer's camera has gotten a higher resolution, the image's file size has also increased. The aim of this thesis has been to come up with a recommendation for how to work towards getting a smaller file size. The recommendation was intended for retouchers who work in the fashion industry and with pictures meant for print. The work has dealt with file sizes associated with retouching and have tried to illustrate what during the retouch procedure that causes a larger file size. This has been done by contacting retouchers who often work with fashion images. The focus has been on the layers in Photoshop and editing options for the retoucher. The results showed that the retouchers had similar ways of working towards a small file size, and a certain similarity is apparent in their way of retouching which caused a bigger file size. What also showed was that the file size is the most affected by how layers consisting of pixels and masks look compared to adjustment layers.

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Venjakob, Antje Cristine [Verfasser], Claudia [Akademischer Betreuer] Mello-Thoms, and Matthias [Akademischer Betreuer] Rötting. "Visual search, perception and cognition when reading stack mode cranial CT / Antje Cristine Venjakob. Gutachter: Matthias Rötting ; Claudia Mello-Thoms. Betreuer: Claudia Mello-Thoms ; Matthias Rötting." Berlin : Technische Universität Berlin, 2015. http://d-nb.info/1073584135/34.

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Al-Subari, Karema S. A. [Verfasser], Bernd [Akademischer Betreuer] Ludwig, and Elmar Wolfgang [Akademischer Betreuer] Lang. "A Study of Biomedical Time Series Using Empirical Mode Decomposition : Extracting event-related modes from EEG signals recorded during visual processing of contour stimuli / Karema S. A. Al-Subari ; Bernd Ludwig, Elmar Wolfgang Lang." Regensburg : Universitätsbibliothek Regensburg, 2017. http://d-nb.info/1140642073/34.

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Barron-Gonzalez, Hector. "Cognitive model for visual SLAM." Thesis, University of Sheffield, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.575461.

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In mobile robotics, visual perception in unknown environments consists mainly of two tasks: generation of a map and localization of the agent within it, using images as input. This problem is commonly called Visual Simultaneous Localization and Mapping ( Visual SLA M). This project aims of increasing the capacities of spatial reasoning in robotics systems based on cognitive vision. Baycsian formulation of visual mapping is extended to consider geometric properties for increasing of scene understand- ing. In this search, this work presents a framework that covers the computa- tional and algorithmic perspectives in Cognitive Vision. proposed by Marr. A part of the work is devoted to develop the representational framework for describing the visual phenomenon in monocular SLAM, unifying concepts about the existent parametrization and extending the analysis to geometric properties and relations in the scene. This yields a novel strategy for aug- mented mapping with high lcvellandmarks based on planar surfaces. After, we explore the computational level of visual SLAM through a sym- bolic framework for describing the elements required for spatial reasoning, involved in visual SLAM. An ontology for spatial reasoning is proposed upon visual SLAM context. An axiomatic set in visual scenario is related to prop- erties in projective geometry, assuring a scheme for semantic attachment. Finally, a novel approach to solve visual SLAM based on spatial reasoning is presented, focusing on the algorithmic level. The model of latent geomet- ric constraints is presented as a non-parametric Baycsian extension of visual SLAM. The generative model produces multiples scenarios with different visual conditions. Although this thesis is focused on solving visual SLAM, the proposed ap- proach can be conceived as a methodology for the design of cognitive dynamic systems.

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Khan, Tamim Ahmed. "Model-based testing using visual contracts." Thesis, University of Leicester, 2012. http://hdl.handle.net/2381/27571.

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Web services only expose interface level information, abstracting away implementation details. Testing is a time consuming and resource-intensive activity. Therefore, it is important to minimize the set of test cases executed without compromising quality. Since white-box testing techniques and traditional structural coverage criteria require access to code, we require a model-based approach for web service testing. Testing relies on oracles to provide expected outcomes for test cases and, if implemented manually, they depend on testers’ understanding of functional requirements to decide the correct response of the system on every given test case. As a result, they are costly in creation and maintenance and their quality depends on the correct interpretation of the requirements. Alternatively, if suitable specifications are available, oracles can be generated automatically at lower cost and with better quality. We propose to specify service operations as visual contracts with executable formal specifications as rules of a typed attributed graph transformation system. We associate operation signatures with these rules for providing test oracles. We analyze dependencies and conflicts between visual contracts to develop a dependency graph. We propose model-based coverage criteria, considering this dependency graph, to assess the completeness of test suites. We also propose a mechanism to find out which of the potential dependencies and the conflicts were exercised by a given test case. While executing the tests, the model is simulated and coverage is recorded as well as measured against the criteria. The criteria are formalized and the dynamic detection of conflicts and dependencies is developed. This requires keeping track of occurrences and overlaps of pre- and post-conditions, their enabling and disabling, in successive model states, and interpreting these in terms of the static dependency graph. Systems evolve over time and need retesting each time there is a change. In order to verify that the quality of the system is maintained, we use regression testing. Since regression test suites tend to be large, we isolate the affected part in the system only retesting affected parts by rerunning a selected subset of the total test suite. We analyze the test cases that were executed on both versions and propose a mechanism to transfer the coverage provided by these test cases. This information helps us to assess the completeness of the test suite on the new version without executing all of it.

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Bayerl, Pierre. "A model of visual motion perception." [S.l. : s.n.], 2006. http://nbn-resolving.de/urn:nbn:de:bsz:289-vts-56293.

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De, Biswas Kaustuv Kanti. "A computational model of visual interpretation." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35129.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Architecture, 2006. Includes bibliographical references (leaves 48-50). From the very early phases of design conception, designers use sketches as a powerful design tool. Sketches are however ambiguous. Meanings are associated on fly as the designer 'comes up' with certain ideas while working with it. There is no hierarchy in a sketch. In fact 'structure' is established only after meanings are applied to the sketch. However even in such structurally and conceptually fluid territory, the designer solves most of his design problems and very often comes to quick resolutions. To understand this fascinating tool and how the designer interacts with it, we need to understand how we visually interpret sketches. The process of design is also a reflective act. The designer keeps changing his perspectives and focus based on the unexpected opportunities that emerge from such reflection. Computational systems used today in design exploration are not capable of doing so. On the contrary these systems model the world in a very rigid structured way and cannot produce design ideas beyond what their preset description anticipates. (cont.) From this perspective there is no novelty, or surprise, in such systems. As a step forward, this thesis proposes the following: 1. Visual Schemas as procedural units of visual memory. They schematically store real world knowledge (courtyard) and form the basis for interpretation. 2. Separation of Shape and Visual Concepts. This thesis suggests that shapes are flat and abstract collection of parts, while visual concepts are subjective and hierarchic ideas, which are formed from the shapes through interpretation. A LISP machine is presented as a basic computational framework for implementing and establishing the model that is proposed. It observes a relatively simple architectural sketch, interprets it reflectively through the activation of potential, alternative contexts, and then gives a collection of concepts that it manages to 'see' in the sketch. by Kaustuv Kanti de Biswas. S.M.

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Chilukamari, Jayachandra. "A computational model of visual attention." Thesis, Robert Gordon University, 2017. http://hdl.handle.net/10059/2443.

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Visual attention is a process by which the Human Visual System (HVS) selects most important information from a scene. Visual attention models are computational or mathematical models developed to predict this information. The performance of the state-of-the-art visual attention models is limited in terms of prediction accuracy and computational complexity. In spite of significant amount of active research in this area, modelling visual attention is still an open research challenge. This thesis proposes a novel computational model of visual attention that achieves higher prediction accuracy with low computational complexity. A new bottom-up visual attention model based on in-focus regions is proposed. To develop the model, an image dataset is created by capturing images with in-focus and out-of-focus regions. The Discrete Cosine Transform (DCT) spectrum of these images is investigated qualitatively and quantitatively to discover the key frequency coefficients that correspond to the in-focus regions. The model detects these key coefficients by formulating a novel relation between the in-focus and out-of-focus regions in the frequency domain. These frequency coefficients are used to detect the salient in-focus regions. The simulation results show that this attention model achieves good prediction accuracy with low complexity. The prediction accuracy of the proposed in-focus visual attention model is further improved by incorporating sensitivity of the HVS towards the image centre and the human faces. Moreover, the computational complexity is further reduced by using Integer Cosine Transform (ICT). The model is parameter tuned using the hill climbing approach to optimise the accuracy. The performance has been analysed qualitatively and quantitatively using two large image datasets with eye tracking fixation ground truth. The results show that the model achieves higher prediction accuracy with a lower computational complexity compared to the state-of-the-art visual attention models. The proposed model is useful in predicting human fixations in computationally constrained environments. Mainly it is useful in applications such as perceptual video coding, image quality assessment, object recognition and image segmentation.

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Cisneros, Marco Antonio Perez. "Intelligent model structures in visual servoing." Thesis, University of Manchester, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.682243.

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This thesis focuses on visual servoing (VS) control systems, particularly on image-based visual servoing (IBVS) control structures. In IBVS, the error signal is computed in the image plane and the regulation commands are generated with respect to such error by means of a visual Jacobian. The main design challenge is the high latency of the visual sensor which affects the overall performance and limits the design. The primary objective is to develop a complete framework for simulation and real-time experimentation of VS schemes. One commercial CCD camera is attached to the TQ MA2000 robotic manipulator. The framework has been employed to investigate the use of RL algorithms to increase the performance of the IBVS control structure. The classic RL actor-critic structure has been used to perform on-line adjustment of the gains driving the linear trajectory regulator inside the IBVS control structure. The neural system learns directly from data in the image space and the state of the robot. Two feedforward networks are used, the actor directly modifies the regulator gains whereas the adaptive critic stores and assigns action values. By using the adaptive heuristic critic approach (AHC), the training aims to achieve real-time improvement and adaptation without losing an acceptable regulation of the visual servoing task. A compact model and a flexible framework host the reinforcement learning algorithm in order to enable its inclusion within the IBVS control structure. The approach in this thesis has solved critical neuro-dynamic problems which are derived from the interaction between the imaging model and the robot’s dynamics. The VS toolkit also provides a real-time library to implement and test the IBVS control structure. The libraries have proven effective to construct both the linear IBVS and the RL-supported IBVS system thanks to its layered architecture which facilitates the inclusion of control en› tities of different nature such as the neural networks and the learning framework. Two case studies demonstrate the applicability of the CSC VS toolkit to integrate all the required components and to implement each of the VS experiments in real-time. Performance comparison between the linear IBVS and the RL-supported system are also documented to show the effectiveness of the actor-critic structure.

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Blais, Bruno. "Model-based visual inspection of hybrid circuits." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63928.

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Lee, KangWoo. "Computational model of visual attention : integrative approach." Thesis, University of Sussex, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289231.

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Gilja, Vikash. "Learning and applying model-based visual context." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/33139.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004. Includes bibliographical references (p. 53). I believe that context's ability to reduce the ambiguity of an input signal makes it a vital constraint for understanding the real world. I specifically examine the role of context in vision and how a model-based approach can aid visual search and recognition. Through the implementation of a system capable of learning visual context models from an image database, I demonstrate the utility of the model-based approach. The system is capable of learning models for "water-horizon scenes" and "suburban street scenes" from a database of 745 images. by Vikash Gilja. M.Eng.

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Oliveira, Jociele Lampert de. "INTERFACE ARTE-MODA: TECENDO UM OLHAR CRÍTICO-ESTÉTICO DO PROFESSOR DE ARTES VISUAIS." Universidade Federal de Santa Maria, 2005. http://repositorio.ufsm.br/handle/1/6796.

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This research was developed in Arts and Education Line/PPGE. Its purpose was to investigate aspects concerned to fashion-art interface discussion and its implications to build a nowadays visual arts teacher critical-esthetical view. The research subjects were four teachers to be from Visual Arts UFSM Graduation Course. By working this issue with teachers to be we longed for the possibility of thinking about conceptual changes in the way of boarding the theme. Fashion was considered as possibility generating element; and starting by that dialogue fashionart artistic interface can be considered as a common (or different) elements kit between these two knowledge areas. From that tension point between fashion and art we opted for an education theoretic reflection abroad to an art critical comprehension, based on Franz (2003) and Hernández (2002) conceptions, witch grants fashion as an articulator element to visual culture. The employed methodology was based on a qualitative abroad, assisted by participant observation, field diary and documental analysis. Through the investigation results we could attest how those teachers composed their view from practical experiences and conceptual questions about images witch relate fashion-art as well as the critical comprehension related to their own quotidian perception. Esta pesquisa foi desenvolvida na Linha de Educação e Artes/PPGE. Objetivou investigar aspectos referentes à discussão da interface arte-moda e suas implicações, para a construção de um olhar crítico-estético do professor de Artes Visuais na contemporaneidade. Os sujeitos da pesquisa foram quatro professores em formação inicial do Curso de Licenciatura em Artes Visuais da UFSM. Ao trabalhar esta temática com professores em formação inicial, buscou-se a possibilidade de pensar em mudanças conceituais na forma de articular o conteúdo. A moda foi considerada como elemento gerador desta possibilidade e partindo deste diálogo, a interface artística arte-moda pode ser considerada como um conjunto de elementos comuns (ou díspares), entre as duas áreas de conhecimento. A partir destes pontos de tensões entre a arte e a moda, abordou-se uma reflexão teórica da educação para a compreensão crítica da arte, baseada nas concepções de Franz (2003) e Hernández (2002), no que confere a moda como elemento articulador na cultura visual. A metodologia empregada baseou-se em uma abordagem qualitativa, subsidiada por observação participante, diário de campo e análise documental. Com os resultados da investigação se pôde averiguar como o professor teceu seu olhar a partir de vivências práticas e questionamentos conceituais sobre as imagens que relacionam arte-moda, bem como, a compreensão crítica acerca da percepção do seu próprio cotidiano.

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Calza, Márlon Uliana. "A identidade visual no projeto gráfico de revistas de moda." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/115890.

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La tesi analizza il progetto grafico delle riviste di moda cartacee, problematizzando la forma come i loro elementi strutturali e visivi contribuiscano alla configurazione della loro identità visuale e alla proposizione di contratti di lettura. Problematizza le relazioni stabilite tra il campo del giornalismo e quello della moda, a partire dai contrasti dei loro principi e valori, incorporati dal progetto grafico delle pubblicazioni: transitorietà e periodicità; innovazione e continuità; regolamentazione e credibilità; oltre all`imitazione e alla differenziazione. Le procedure metodologiche adottate sono la ricerca teorica, la ricerca di contestualizzazione e la ricerca iconografica, costruendosi un approccio sincronico ed un altro diacronico nella problematizzazione dell`oggetto, a partire da aspetti giornalistici, editoriali, storici e visuali. L`analisi delle riviste è realizzata in due tappe: nella prima tappa viene effettuata l`osservazione accurata di diversi tipi di riviste di moda, nazionali ed internazionali, che sommata agli apporti teorici, permette l`elaborazione di un quadro generale della segmentazione e caratterizzazione delle riviste di moda – composto da linee e categorie collegate al suo genere, dal target e dal trattamento dato ai temi, alla loro periodicità e diffusione. Partendo da questo istrumento, si definisce il corpus, costituito da cinque pubblicazioni brasiliani: UseFashion, ffw>>mag!, Elle Brasil, Estilo de Vida e Manequim. A partire dalla selezione di tre edizioni di ogni titolo pubblicate nel 2013, si realizza un`analisi qualitativa, in modo comparativo e sistematico, e in conformità alle unità e agli operatori analitici definiti. Si conclude che l`identità visuale delle riviste si costituisce a partire da elementi che non si limitano alla loro marca, proponendo contratti di lettura che abbiano come presupposti la creazione di relazioni visuali interne ed esterne alle pubblicazioni – che mirano alla loro identificazione, ma anche alla differenziazione all`interno del loro segmento. Tali rapporti sono messi in evidenza dal progetto grafico, a partire dall`adozione di elementi ricorrenti, comuni e specifici, identificati in ciascuna delle categorie di riviste proposte, che si articolano all`universo della moda e si dedicano alla: (i) diffusione di materie prime, fornitori e tendenze; alla (ii) copertura delle sfilate ed inaugurazioni; alla (iii) moda concettuale; alla (iv) moda e al lusso; alle (v) guide di servizio; e alla (vi) produzione artigianale dell’abbigliamento. Mentre le riviste del segmento della moda adottano un certo padrone di riferimento, aderendo ad un quadro di riferimenti condiviso, ricercano la loro differenziazione, mediante l`adozione di pratiche e strategie editoriali, istituzionali e commerciali particolari, oltre all`attualizzazione del passato e ed alla rinnovazione nel tempo. A tese analisa o projeto gráfico de revistas impressas de moda, problematizando a forma como seus elementos estruturais e visuais contribuem para a conformação de sua identidade visual e para a proposição de contratos de leitura. Problematiza as relações estabelecidas entre os campos do jornalismo e da moda, a partir do tensionamento de seus princípios e valores, incorporados pelo projeto gráfico das publicações: efemeridade e periodicidade; novidade e continuidade; normatividade e credibilidade; além da imitação e da diferenciação. Os procedimentos metodológicos adotados são a pesquisa teórica, a pesquisa de contextualização, e a pesquisa iconográfica, sendo que constrói-se uma abordagem sincrônica e outra diacrônica na problematização do objeto, a partir de aspectos jornalísticos, editoriais, históricos e visuais. A análise das revistas é realizada em duas etapas: na primeira etapa realiza-se uma observação exploratória de diferentes revistas de moda, nacionais e internacionais, que, somada aos aportes teóricos, possibilita a construção de um quadro de segmentação e caracterização das revistas de moda – composto por eixos e categorias relacionados ao seu gênero, target e tratamento dado aos temas, à sua periodicidade e circulação. A partir do instrumento, definese o corpus, constituído por cinco publicações brasileiras: UseFashion, ffw>>mag!, Elle Brasil, Estilo de Vida e Manequim. A partir da seleção de três edições de cada título publicadas no ano de 2013, realiza-se uma análise qualitativa, de modo comparativo e sistemático, e em conformidade às unidades e aos operadores analíticos definidos. Conclui-se que a identidade visual das revistas constitui-se a partir de elementos que não restringem-se à sua marca, propondo contratos de leitura que pressupõem o estabelecimento de relações visuais internas e externas às publicações – que visam à sua identificação, mas também à sua diferenciação junto ao segmento. Tais relações são manifestas pelo projeto gráfico, a partir da adoção de elementos recorrentes, comuns e particulares, identificados em cada uma das categorias de revista propostas, que articulam-se à cadeia da moda e dedicam-se: à (i) divulgação de matérias-primas, fornecedores e tendências; à (ii) cobertura dos desfiles e lançamentos; à (iii) moda conceitual; à (iv) moda e ao luxo; aos (v) guias de serviço; e à (vi) produção manual das roupas. Ao passo que as revistas do segmento de moda adotam certa padronização, aderindo a um quadro de referência compartilhado, buscam a sua diferenciação, através da adoção de práticas e estratégias editoriais, institucionais e comerciais particulares, além da atualização do passado e da renovação no tempo. This thesis analyses the graphic design of printed fashion magazines and problematizes the way in which their structural and visual elements contribute to the formation of their visual identity and to the proposition of reading contracts. It also problematizes the relationship between the fields of journalism and fashion, departing from the tension among their principles and values embodied in the graphic design of the publications: ephemerality and periodicity; novelty and continuity; normativity and credibility; as well as imitation and differentiation. The methodological procedures adopted are theoretical research, context research and iconographic research, which build up into and synchronic and diachronic approach towards the object, considering the journalistic, editorial, historical and visual aspects. The analysis of the magazines was done in two phases: first, an exploratory observation of different fashion magazines, national and foreign, which, allied to theoretical support, allowed the construction of an outlook on the segmentation and characterization of fashion magazines – formed by axes and categories relating to their genre, target, and overview of the themes, their periodicity and circulation. From the instrument, the corpus is defined as constituted by five Brazilian publications: UseFashion, ffw>>mag!, Elle Brasil, Estilo de Vida and Manequim. From the selection of three editions of each title, all published in 2013, a qualitative analysis was done, in a comparative and systematic fashion, and according to the units and the defined analytical operators. We reached the conclusion that the visual identity of the magazines is built around elements that are not restricted to their brand, and it proposes reading contracts which presuppose the building of visual relationships both internal and external in relation to the publications – relationships that aim at their identification but also their differentiation in the segment. Such relationships are manifested by the graphic design, through the adoption of recurrent elements, both common and particular, identified in each of the proposed magazine categories, which are in articulation with the fashion industry and are dedicated to: (i) advertise components, suppliers and trends; (ii) coverage of fashion shows and new releases; (iii) conceptual fashion; (iv) fashion and luxury; (v) service guides and (vi) manual production of clothes. Fashion magazines tend to adopt a certain amount of standardization through shared milestones, but they also seek differentiation though the adoption of unique editorial, institutional and commercial practices and strategies, as well as the actualization of the past and renovation through time.

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Griffin, Velda L. "Right Brain Study." UNF Digital Commons, 1985. http://digitalcommons.unf.edu/etd/24.

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The purpose of this study is to show that instructional methods designed for right-brained students will make a significant difference in the reading achievement scores of the students when compared with the scores of right-brained sixth grade students not receiving these instructional methods.The subjects were sixth grade students who use the right hemisphere of the brain to a greater degree than the left hemisphere. The subjects' cerebral preference was determined by a test known as the Cerebral Preference Index (CPI). Ten students each were chosen from two sixth grade classes. The study consisted of a Control Group and Experimental Group. During the study the Control Group received eight weeks of the regular school's program while the Experimental Group received eight weeks of instructional strategies that take hemispheric specialization into consideration. The results indicated that there was no significant difference in the reading achievement scores of those students who received the instructional methods designed for right brained students. The analysis of data did suggest that those scoring high on the pre-test scored high on the post test. The results indicated the same outcome for low scorers.

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Danelljan, Martin. "Visual Tracking." Thesis, Linköpings universitet, Datorseende, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-105659.

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Visual tracking is a classical computer vision problem with many important applications in areas such as robotics, surveillance and driver assistance. The task is to follow a target in an image sequence. The target can be any object of interest, for example a human, a car or a football. Humans perform accurate visual tracking with little effort, while it remains a difficult computer vision problem. It imposes major challenges, such as appearance changes, occlusions and background clutter. Visual tracking is thus an open research topic, but significant progress has been made in the last few years. The first part of this thesis explores generic tracking, where nothing is known about the target except for its initial location in the sequence. A specific family of generic trackers that exploit the FFT for faster tracking-by-detection is studied. Among these, the CSK tracker have recently shown obtain competitive performance at extraordinary low computational costs. Three contributions are made to this type of trackers. Firstly, a new method for learning the target appearance is proposed and shown to outperform the original method. Secondly, different color descriptors are investigated for the tracking purpose. Evaluations show that the best descriptor greatly improves the tracking performance. Thirdly, an adaptive dimensionality reduction technique is proposed, which adaptively chooses the most important feature combinations to use. This technique significantly reduces the computational cost of the tracking task. Extensive evaluations show that the proposed tracker outperform state-of-the-art methods in literature, while operating at several times higher frame rate. In the second part of this thesis, the proposed generic tracking method is applied to human tracking in surveillance applications. A causal framework is constructed, that automatically detects and tracks humans in the scene. The system fuses information from generic tracking and state-of-the-art object detection in a Bayesian filtering framework. In addition, the system incorporates the identification and tracking of specific human parts to achieve better robustness and performance. Tracking results are demonstrated on a real-world benchmark sequence.

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Vasconcelos, Igor. "A identidade construída: arte como representação visual de modelos." Master's thesis, Universidade de Aveiro, 2011. http://hdl.handle.net/10773/12656.

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Mestrado em Criação Artística Contemporânea Este projecto orienta-se em torno de um corpo simbólico de trabalhos que explora o processo de construção da identidade do indivíduo (hiper)moderno urbano. Com o desenvolvimento das tecnologias, a globalização e o crescimento das cidades, a construção da identidade tornou-se um processo fluido e mutável de acordo com as situações sociais. A moda e o consumo tornam-se agentes influentes neste processo, pois assumem o lugar das velhas ideologias, nomeadamente Igreja e Estado, e funcionam inseridos no paradigma do sistema capitalista de funcionamento. Nesta abordagem, a arte, para além da sua função de expressão cultural, surge como um reflexo dessas mudanças e inevitavelmente parte integrante do processo de consumo. Outro aspecto da construção da identidade é a questão do género, e como este se organiza nos tempos atuais, em conformidade com a vontade individual e o desejo, diante da organização da sociedade (hiper)moderna. A representação que surge, através da arte, de um novo modelo de género e sexualidade múltiplos faz com que o campo artístico valide essa nova imagem de homens e mulheres através de sua representação. A substância deste trabalho é, assim, a reflexão sobre a questão da identidade e sobre como os factores que são responsáveis por este processo de construção se relacionam com a arte contemporânea. This project is oriented around a symbolic work that explores the process of building the identity of the urban (hyper)modern man. With the development of technologies, globalization and urban growth, the construction of identity has become a fluid process and changeable according to social situations. The fashion and consumption become powerful actors in this process, assuming the place of old ideologies, e.g. the Church and the State, and being embedded in the paradigm of the capitalist system of operation. In this approach, the art comes in addition to its function of cultural expression, as a result of these changes and inevitably part of the consumption process. Another aspect of the construction of identity is the gender issue, and how it organizes itself in modern times, in accordance with the wishes and desires that rise amidst the organization of modern society. The representation that emerges, through art, this new, multiple model of gender and sexuality makes the artistic field validate this new image of men and women through their representation. The substance of this work is thus a reflection on the question of identity and how those factors which are responsible for this process of construction relate to contemporary art.

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31

Komodakis, Nikos. "Graphical Model Inference and Learning for Visual Computing." Habilitation à diriger des recherches, Université Paris-Est, 2013. http://tel.archives-ouvertes.fr/tel-00866078.

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Computational vision and image analysis is a multidisciplinary scientiﬁc ﬁeld that aims to make computers "see" in a way that is comparable to human perception. It is currently one of the most challenging research areas in artiﬁcial intelligence. In this regard, the extraction of information from the vast amount of visual data that are available today as well as the exploitation of the resulting information space becomes one of the greatest challenges in our days. To address such a challenge, this thesis describes a very general computational framework that can be used for performing efficient inference and learning for visual perception based on very rich and powerful models.

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32

Ponsa, Mussarra Daniel. "Model-Based Visual Localisation Of Contours And Vehicles." Doctoral thesis, Universitat Autònoma de Barcelona, 2007. http://hdl.handle.net/10803/5782.

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El treball d'aquesta tesi es centra en l'anàlisi de seqüències de vídeo, aplicant tècniques basades en models per extreure'n informació quantitativa. En concret, es realitzen diferents propostes en dues àrees d'aplicació: el seguiment de formes basat en models de contorns, i la detecció i seguiment de vehicles en imatges proveïdes per una camera instal·lada en una plataforma mòbil. El treball dedicat al seguiment de formes s'enquadra en el paradigma de contorns actius, del qual presentem una revisió de les diferents propostes existents. En primer lloc, mesurem el rendiment obtingut pels algorismes de seguiment més comuns (filtres basats en Kalman i filtres de partícules), i en segon lloc avaluem diferents aspectes de la seva implementació en un extens treball experimental on es consideren múltiples seqüències sintètiques, distorsionades amb diferents graus de soroll. Així, mitjançant aquest estudi determinem la millor manera d'implementar a la pràctica els algorismes de seguiment clàssics, i identifiquem els seus pros i contres. Seguidament, el treball s'orienta cap a la millora dels algoritmes de seguiment de contorns basats en filtres de partícules. Aquest algorismes aconsegueixen bons resultats sempre que el número de partícules utilitzades sigui suficient, però malauradament la quantitat de partícules requerides creix exponencialment amb el número de paràmetres a estimar. Per tant, i en el context del seguiment de contorns, presentem tres variants del filtre de partícules clàssic, corresponents a tres noves estratègies per tractar aquest problema. En primer lloc, proposem millorar el seguiment de contorns mirant de propagar més acuradament les partícules emprades per l'algorisme d'una imatge a la següent. Això ho duem a terme utilitzant una aproximació lineal de la funció de propagació òptima. La segona estratègia proposada es basa en estimar part dels paràmetres de manera analítica. Així, es pretén fer un ús més productiu de les partícules emprades, reduint la part dels paràmetres del model que s'han d'estimar amb elles. El tercer mètode proposat té com a objectiu treure profit del fet de que, en aplicacions de seguiment de contorns, sovint els paràmetres relatius a la transformació rígida es poden estimar prou acuradament independentment de la deformació local que el contorn presenti. Això s'utilitza per realitzar una millor propagació de les partícules, concentrant-les més densament en la zona on el contorn seguit es troba. Aquestes tres propostes es validen de manera extensiva en seqüències amb diferents nivells de soroll, amb les que es mesura la millora aconseguida. A continuació proposem tractar directament l'origen del problema anterior mitjançant la reducció del nombre de paràmetres a estimar per tal de seguir una determinada forma d'interès. Per aconseguir això, proposem modelar aquesta forma usant múltiples models, on cadascun requereix una quantitat de paràmetres inferior a la requerida per un únic model. Es proposa un nou mètode per aprendre aquests models a partir d'un conjunt d'entrenament, així com un nou algorisme per emprar-los en el seguiment dels contorns. Els resultats experimentals certifiquen la validesa d'aquesta proposta. Finalment, la tesi es centra en el desenvolupament d'un sistema de detecció i seguiment de vehicles. Les propostes realitzades comprenen: un mòdul de detecció de vehicles, un mòdul dedicat a determinar la posició i velocitat 3D dels vehicles detectats, i un mòdul de seguiment per actualitzar la localització dels vehicles a la carretera de manera precisa i eficient. Es realitzen diverses aportacions originals en aquests tres temes, i se n'avalua el rendiment. This thesis focuses the analysis of video sequences, applying model-based techniques for extracting quantitative information. In particular, we make several proposals in two application areas: shape tracking based on contour models, and detection and tracking of vehicles in images acquired by a camera installed on a mobile platform. The work devoted to shape tracking follows the paradigm of active contours, from which we present a review of the existent approaches. First, we measure the performance of the most common algorithms (Kalman based filters and particle filters), and then we evaluate its implementation aspects trough an extensive experimental study, where several synthetic sequences are considered, distorted with different degrees of noise. Thus, we determine the best way to implement in practice these classical tracking algorithms, and we identify its benefits and drawbacks. Next, the work is oriented towards the improvement of contour tracking algorithms based on particle filters. These algorithms reach good results provided that the number of particles is high enough, but unfortunately the required number of particles grows exponentially with the number of parameters to be estimated. Therefore, and in the context of contour tracking, we present three variants of the classical particle filter, corresponding to three new strategies to deal with this problem. First, we propose to improve the contour tracking by propagating more accurately the particles from one image to the next one. This is done by using a linear approximation of the optimal propagation function. The second proposed strategy is based in estimating part of the parameters analytically. Thus, we aim to do a more productive use of the particles, reducing the amount of model parameters that must be estimated through them. The third proposed method aims to exploit the fact that, in contour tracking applications, the parameters related to the rigid transform can be estimated accurately enough independently from the local deformation presented by the contour. This is used to perform a better propagation of the particles, concentrating them more densely in the zone where the tracked contour is located. These three proposals are validated extensively in sequences with different noise levels, on which the reached improvement is evaluated. After this study, we propose to deal directly with the origin of the previous problem by reducing the number of parameters to be estimated in order to follow a given shape of interest. To reach that, we propose to model the shape using multiple models, where each one requires a lower quantity of parameters than when using a unique model. We propose a new method to learn these models from a training set, and a new algorithm to use the obtained models for tracking the contours. The experimental results certify the validity of this proposal. Finally, the thesis focuses on the development of a system for the detection and tracking of vehicles. The proposals include: a vehicle detection module, a module devoted to the determination of the three-dimensional position and velocity of the detected vehicles, and a tracking module for updating the location of vehicles on the road in a precise and efficient manner. Several original contributions are done in these three subjects, and their performance is evaluated empirically.

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33

Neff, Michael Paul. "A visual model for blast waves and fracture." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0019/MQ40747.pdf.

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34

Gupta, Ashish. "Learning a structured model for visual category recognition." Thesis, University of Surrey, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.600016.

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This thesis deals with the problem of estimating structure in data due to the semantic relations between data. elements and leveraging this information to learn a visual model for category recognition. A visual model consists of dictionary learning, which computes a succinct set of prototypes from training data by partitioning feature space, and feature encoding, which learns a representation of each image as a combination of dictionary elements. Besides 'variations in lighting and pose, a key challenge of classifying a category is intra-category appearance variation. The key idea. in this thesis is that feature data describing a category has latent structure due to visual content idiomatic to a category. However, popular algorithms in literature disregard this structure when computing a visual model. Towards incorporating this structure in the learning algorithms, this thesis analyses two facets of feature data to discover relevant structure. The first is structure amongst the sub-spaces of the feature descriptor. Several subspace embedding techniques that use global or local information to compute a projection function are analysed. A novel entropy based measure of structure in the embedded descriptors suggests that relevant structure has local extent. The second is structure amongst the partitions of feature space. Hard partitioning of feature space leads to issues of uncertainty and plausibility in the assignment of descriptors to dictionary elements. To address this issue, novel fuzzy logic based dictionary learning and feature encoding algorithms are employed that are able to model the local feature vectors distributions and provide performance benefits. To estimate structure amongst sub-spaces: co-clustering is used with a training descriptor data matrix to compute groups of sub-spaces. A dictionary learnt on feature vectors embedded in these multiple sub-manifolds is demonstrated to model data better than a dictionary learnt on feature vectors embedded in a single sub-manifold. In a similar manner, co-clustering is used with encoded feature data matrix to compute groups of dictionary elements - referred to as 'topics' . A topic dictionary is demonstrated to perform better than a regular dictionary of comparable size. Both these results suggest that the co-clustered groups of sub-spaces and dictionary elements have semantic relevance. All the methods developed here have been viewed from the unifying perspective of matrix factorization: where a data matrix is decomposed to two matrices which are interpreted as a dictionary matrix and a co-efficient matrix. Sparse coding methods, which are currently enjoying much success, can be viewed as matrix factorization with a regularization constraint on the dictionary or co-efficient matrices. With regards to sub-space embedding, the sparse principal component analysis is one such method that induces sparsity amongst the sub-spaces selected to represent each descriptor. Similarly, a sparsity inducing regularization method called Lasso is used for feature encoding, which uses only a sub-set of dictionary elements to represent each image. While these methods are effective, they disregard structure in the data matrix.

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35

Freeborn, Robert Bruce. "A neural death model of the visual cortex." Thesis, University of Sussex, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.394270.

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36

Lozo, Peter. "Neural theory and model of selective visual attention and 2D shape recognition in visual clutter /." Title page, contents and abstract only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phl925.pdf.

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37

Talebzadeh, Shahrbabaki Shahrbanoo. "Contribution of colour in guiding visual attention and in a computational model of visual saliency." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAT093/document.

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Les études menées dans cette thèse portent sur le rôle de la couleur dans l'attention visuelle. Nous avons tenté de comprendre l'influence de l'information couleur dans les vidéos sur les mouvements oculaire, afin d'intégrer les attributs couleur dans un modèle de saillance visuelle. Pour cela, nous avons analysé différentes caractéristiques des mouvements oculaires d'observateurs regardant librement des vidéos en deux conditions: couleur et niveaux de gris. Nous avons également comparé les régions principales de regard sur des vidéos en couleur avec celles en niveaux de gris. Il est apparu que les informations de couleur modifient légèrement les caractéristiques de mouvement oculaire comme la position de l'œil et la durée des fixations. Cependant, nous avons constaté que la couleur augmente le nombre de régions de regard. De plus, cet influence de la couleur s'accroît au cours du temps. En nous appuyant sur ces résultats, nous avons proposé une méthode de calcul des cartes de saillance couleur. Nous avons intégré ces cartes dans un modèle de saillance existant The studies conducted in this thesis focus on the role of colour in visual attention. We tried to understand the influence of colour information on the eye movements while observing videos, to incorporate colour information into a model of visual saliency. For this, we analysed different characteristics of eye movements of observers while freely watching videos in two conditions: colour and grayscale videos. We also have compared the main regions of regard of colour videos with those of grayscale. We observed that colour information influences only moderately, the eye movement characteristics such as the position of gaze and duration of fixations. However, we found that colour increases the number of the regions of interest in video stimuli. Moreover, this varies across time. Based on these observations, we proposed a method to compute colour saliency maps for videos. We have incorporated colour saliency maps in an existing model of saliency

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38

Harrison, David Graham. "A computational dynamical model of human visual cortex for visual search and feature-based attention." Thesis, University of Leeds, 2012. http://etheses.whiterose.ac.uk/4878/.

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Visual attention can be deployed to locations within the visual array (spatial attention), to individual features such as colour and form (feature-based attention), or to entire objects (object-based attention). Objects are composed of features to form a perceived ‘whole’. This compositional object representation reduces the storage demands by avoiding the need to store every type of object experienced. However, this approach exposes a problem of binding these constituent features (e.g. form and colour) into objects. The problem is made explicit in the higher areas of the ventral stream as information about a feature’s location is absent. For feature-based attention and search, activations flow from the inferotemporal cortex to primary visual cortex without spatial cues from the dorsal stream, therefore the neural effect is applied to all locations across the visual field [79, 60, 7, 52]. My research hypothesis is that biased competition occurs independently for each cued feature, and is implemented by lateral inhibition between a feedforward and a feedback network through a cortical micro-circuit architecture. The local competition for each feature can be combined in the dorsal stream via spatial congruence to implement a secondary spatial attention mechanism, and in early visual areas to bind together the distributed featural representation of a target object.

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39

Rudiger, Philipp John Frederic. "Development and encoding of visual statistics in the primary visual cortex." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/25469.

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How do circuits in the mammalian cerebral cortex encode properties of the sensory environment in a way that can drive adaptive behavior? This question is fundamental to neuroscience, but it has been very difficult to approach directly. Various computational and theoretical models can explain a wide range of phenomena observed in the primary visual cortex (V1), including the anatomical organization of its circuits, the development of functional properties like orientation tuning, and behavioral effects like surround modulation. However, so far no model has been able to bridge these levels of description to explain how the machinery that develops directly affects behavior. Bridging these levels is important, because phenomena at any one specific level can have many possible explanations, but there are far fewer possibilities to consider once all of the available evidence is taken into account. In this thesis we integrate the information gleaned about cortical development, circuit and cell-type specific interactions, and anatomical, behavioral and electrophysiological measurements, to develop a computational model of V1 that is constrained enough to make predictions across multiple levels of description. Through a series of models incorporating increasing levels of biophysical detail and becoming increasingly better constrained, we are able to make detailed predictions for the types of mechanistic interactions required for robust development of cortical maps that have a realistic anatomical organization, and thereby gain insight into the computations performed by the primary visual cortex. The initial models focus on how existing anatomical and electrophysiological knowledge can be integrated into previously abstract models to give a well-grounded and highly constrained account of the emergence of pattern-specific tuning in the primary visual cortex. More detailed models then address the interactions between specific excitatory and inhibitory cell classes in V1, and what role each cell type may play during development and function. Finally, we demonstrate how these cell classes come together to form a circuit that gives rise not only to robust development but also the development of realistic lateral connectivity patterns. Crucially, these patterns reflect the statistics of the visual environment to which the model was exposed during development. This property allows us to explore how the model is able to capture higher-order information about the environment and use that information to optimize neural coding and aid the processing of complex visual tasks. Using this model we can make a number of very specific predictions about the mechanistic workings of the brain. Specifically, the model predicts a crucial role of parvalbumin-expressing interneurons in robust development and divisive normalization, while it implicates somatostatin immunoreactive neurons in mediating longer range and feature-selective suppression. The model also makes predictions about the role of these cell classes in efficient neural coding and under what conditions the model fails to organize. In particular, we show that a tight coupling of activity between the principal excitatory population and the parvalbumin population is central to robust and stable responses and organization, which may have implications for a variety of diseases where parvalbumin interneuron function is impaired, such as schizophrenia and autism. Further the model explains the switch from facilitatory to suppressive surround modulation effects as a simple by-product of the facilitating response function of long-range excitatory connections targeting a specialized class of inhibitory interneurons. Finally, the model allows us to make predictions about the statistics that are encoded in the extensive network of long-range intra-areal connectivity in V1, suggesting that even V1 can capture high-level statistical dependencies in the visual environment. The final model represents a comprehensive and well constrained model of the primary visual cortex, which for the first time can relate the physiological properties of individual cell classes to their role in development, learning and function. While the model is specifically tuned for V1, all mechanisms introduced are completely general, and can be used as a general cortical model, useful for studying phenomena across the visual cortex and even the cortex as a whole. This work is also highly relevant for clinical neuroscience, as the cell types studied here have been implicated in neurological disorders as wide ranging as autism, schizophrenia and Parkinson’s disease.

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SILVA, Veronica Gabriela Ribeiro da. "Ganho de contraste do potencial cortical provocado visual multifocal: efeitos da excentricidade e do modo de estimulação." Universidade Federal do Pará, 2016. http://repositorio.ufpa.br/jspui/handle/2011/8147.

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Submitted by Cássio da Cruz Nogueira (cassionogueirakk@gmail.com) on 2017-03-27T14:41:27Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertacao_GanhoContrastePotencial.pdf: 2379799 bytes, checksum: b7c8f6c20a4ffc70c03cd986fadbb07f (MD5) Approved for entry into archive by Edisangela Bastos (edisangela@ufpa.br) on 2017-04-11T15:56:44Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertacao_GanhoContrastePotencial.pdf: 2379799 bytes, checksum: b7c8f6c20a4ffc70c03cd986fadbb07f (MD5) Made available in DSpace on 2017-04-11T15:56:44Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertacao_GanhoContrastePotencial.pdf: 2379799 bytes, checksum: b7c8f6c20a4ffc70c03cd986fadbb07f (MD5) Previous issue date: 2016-11-29 CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Neste estudo foram avaliadas as possíveis contribuições das vias paralelas visuais M e P para o potencial cortical provocado visual em diferentes excentricidades visuais usando o ganho de contraste como indicador fisiológico no primeiro (K2.1) e segundo (K2.2) slices do kernel de segunda ordem dos potenciais corticais provocados multifocais (mfVEPs). O trabalho foi aprovado pelo comitê de ética em pesquisa (023/2011 – CEP/NMT) do Núcleo de Medicina Tropical, Universidade Federal do Pará. Nove sujeitos (22,5 ± 3,7 anos de idade) com visão normal foram testados. O estímulo foi gerado através do programa VERIS (EDI, San Mateo, CA) e consistiu em um tabuleiro de dardos ocupando 44° do ângulo visual, com 60 setores escalonados considerando a magnificação cortical, onde cada setor continha 16 quadrados (8 pretos e 8 brancos) com contraste espacial de luminância e luminância média de 40 cd/m², mostrados através de um monitor CRT, situado a uma distância de 32 cm do indivíduo testado. Cada setor foi temporalmente modulado por uma sequência-m pseudo-aleatória no modo de apresentação de padrão reverso e padrão de pulso em cinco contrastes de Michelson entre 6,25-100%. Foram extraídos os dados de K2.1 e K2.2 dos mfVEPs. Calcularam-se os valores médios de amplitude de registros correspondentes a 6 diferentes anéis de mesma excentricidade no campo visual (A1 e A6 sendo os anéis mais interno e externo, respectivamente) em função do contraste do estímulo. Os dados de amplitude em função do contraste do estímulo foram modelados por funções de Michaelis-Menten. A constante de semissaturação (C50) do modelo foi o indicador inversamente proporcional do ganho de contraste da função. Em K2.1, respostas para o padrão reverso apresentaram um alto valor do C50 (média, desvio padrão: 35,5% ± 9,3), indicando baixo ganho de contraste na função. Para os anéis mais externos (A2 – A6), foram estimados C50 inferiores aos estimados em A1 (média, desvio padrão: A2: 26,5% ± 6,5; A3: 22,4% ± 8,8; A4: 18,4% ± 4,4; A5: 20,6% ± 9,3; A6: 26,7% ± 12), representando funções de alto ganho de contraste. Em K2.2, no anel central (A1) e no mais periférico (A6), as funções de resposta ao contraste geradas pelo padrão reverso apresentaram um alto valor do C50 (média, desvio padrão: 38,4% ± 4,2; 37,5% ± 10,2), indicando baixo ganho de contraste na função. De A2 a A5, originou funções com valores de C50 inferiores aos estimados em A1 (média, desvio padrão: A2: 27,4% ± 7,4; A3: 20,2% ± 4,9; A4: 22,4% ± 4,2; A5: 18,7% ± 3,2; A6: 23,1% ± 8,9), representando funções de alto ganho de contraste. Para o padrão de pulso, no K2.1 e K2.2, no anel central (A1) e no K2.2 no anel mais externo (A6), as funções de resposta ao contraste geradas não apresentaram valores significativos e confiáveis para a análise. Em K2.1 os anéis intermediários (A2 – A5) originaram funções com alto C50 (média, desvio padrão: A2: 44,7% ± 10,5; A3: 38,3% ± 12,1; A4: 45,8% ± 12,1; A5: 49,4% ± 16,1; A6: 47,8% ± 14,7), representando funções de baixo ganho de contraste. Em K2.2, nos anéis intermediários (A2 – A5, exceto em A4) a estimulação originou valores de C50 maiores do que em K2.1 (média, desvio padrão: A2: 50,2% ± 10,3; A3: 48,2% ± 11,1; A4: 28,5% ± 4,2; A5: 54,3% ± 16,2), representando funções de baixo ganho de contraste. Para o padrão reverso, os resultados sugerem a predominância da via M nos anéis excêntricos intermediários e da via P no anel mais central (A1) e no mais periférico (A6). Para o padrão de pulso, sugere predominância da via P em todas as excentricidades. This study evaluated effects of eccentricity and mode presentation on the multifocal visual evoked potential (mfVEPS) recordings extracted by second-order kernels and its possible contributions from parallel visual pathways. Nine subjects (22.5 ± 3.7 years-old) were studied. All the subjects had 20/20 or corrected visual acuity and no previous history of neuro-ophtahlmic diseases or degenerative diseases. The subjects were tested with non dilated pupil in a monocular way. All the experimental procedures agreed to the tenets of Helsinki and were approved by Committee for Ethic in Research of Nucleus of Tropical Medicine (023/2011 protocol, Federal University of Pará, Belém, PA, Brazil). A CRT monitor displayed a 22º radius, 60 sectors dartboard, each sector with 16 checks (8 white and 8 black), pattern mean luminance of 40 cd/m2. The pattern selection to be shown in each sector was temporally modulated according to a binary pseudorandom m-sequence. Two stimulation protocols were used and we called them as pattern reversal and pattern pulse. Stimulus was presented at five Michelson contrast levels (100%, 50%, 25%, 12.5%, and 6.25%) in two trials with increasing and decreasing contrast order. The subject was instructed to keep the eye in a red cross (1º) placed at the center of the screen. Veris 6.01 was used to configure the stimuli. mfVEPs were recorded with gold cup electrodes: the reference electrode was placed at the inion; the recording electrodes were placed at, 4 cm above the inion (channel 1), 1 cm above and 4 cm to the right of the inion (channel 2), 1 cm above and 4 cm to the left of the inion (channel 3). Ground surface electrode was placed at the forehead. Skin impedance was kept below 5 KOhm. Recordings were amplified 100.000x, band-pass filtered between 3 and 100 Hz. The Veris 6.1 performed an offline low-pass filtering at 35 Hz. Veris 6.1 was used to extract first (K2.1) and second (K2.2) slices from second-order kernels data from original channels. Using MATLAB routines three additional channels were computed from the subtraction of the three original channels. For each subject, a signal-to-noise ratio (SNR) evaluation was performed over the averaged data of two trials in each one of the 6 channels. We measured the RMS amplitude of signal and noise interval of each recording. Finally, we analyzed the waveforms with best SNR for each sector. Mean RMS amplitude for each of six eccentric rings (R1 and R6 are the inner and outer rings, respectively) and for all rings together as a function of stimulus contrast was modeled using Michaelis-Menten functions. Semi-saturation constant (C50) of the contrast-response function was used as indicator of response contrast gain. For pattern reversal protocol contrast-response functions from K2.1/K2.2 had the following C50 values: R1: 35,5% ± 9,3; R2: 26,5% ± 6,5; R3: 22,4% ± 8,8; R4: 18,4% ± 4,4; R5: 20,6% ± 9,3; R6: 26,7% ± 12 / R1: 38,4% ± 4,2; R2: 27,4% ± 7,4; R3: 20,2% ± 4,9; R4: 22,4% ± 4,2; R5: 18,7% ± 3,2; R6: 23,1% ± 8,9. For pattern pulse protocol contrast-response functions from K2.1/K2.2 had the following C50 values: R1: 0; R2: 44,7% ± 10,5; R3: 38,3% ± 12,1; R4: 45,8% ± 12,1; R5: 49,4% ± 16,1; R6: 47,8% ± 14,7 / R1: 0; R2: 50,2% ± 10,3; R3: 48,2% ± 11,1; R4: 28,5% ± 4,2; R5: 54,3% ± 16,2; R6: 0. Two contrast sensitivity mechanisms contribute to mfVEPs elicited by stimuli located in the central visual field, one mechanism with higher contrast gain (pattern reversal mfVEP) and other mechanism with low contrast gain (pattern pulse). For stimulus at the periphery visual field, mechanism with high contrast gain contributed to the generation of mfVEPs elicited by all stimulation modes.

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Peng, Fanke. "Visual Thinking - Beyond Craft Making : Identifying and verifying a visual analysis model (VAM) for craft practice." Thesis, University of Dundee, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.521661.

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Fonseca, Annelise Nani da. "Processo criador no ensino da moda." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/27/27160/tde-20072016-115216/.

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Esta pesquisa analisa caminhos por meio dos estudos visuais visando à reflexão sobre o ensino da moda vinculada à percepção cultural por meio da análise de imagens. O objetivo consiste em investigar possibilidades para pensar o ensino e aprendizagem do processo criativo de moda. Para isso, buscou-se interpretar como as imagens são concebidas, investigando suas relações com a cultura na qual estão inseridas. Para tanto, a pesquisa observa as diferentes interpretações acerca da criatividade para fundamentar sua reflexão no tocante ao processo criador em moda com o intuito de potencializar sua práxis para o ensino e o fomento à criatividade dos alunos. O projeto também contemplou uma pesquisa in loco, na França, a fim de observar como o processo criador é trabalhado no país e a relação da cultura com as estratégias de ensino, isso para fundamentar um estudo comparativo do fomento à criação em cursos de moda no Brasil e na França. Além disso, apresenta-se o desenvolvimento de uma coleção autoral para demonstrar como a leitura de imagem pode contribuir com o estímulo da criatividade em Moda. This research analyzes ways through visual studies aiming to reflect on the fashion school linked to cultural awareness through image analysis. The aim consists to investigate possibilities to think the teaching and learning of creative fashion process. For this, we sought to interpret as images are designed, investigating its relationship with the culture in which they are inserted. Therefore, the research looks at different interpretations of creativity to support its reflection regarding the creative process in fashion in order to enhance their práxis for teaching and fostering the creativity of students. The project also included an in loco survey, in France, in order to observe how the creative process is working in the country and the relationship of culture with the teaching strategies, so to support a comparative study of fostering the creation of fashion courses in Brazil and France. In addition, it presents the development of an authorial collection to demonstrate how image reading can contribute to stimulating creativity in fashion.

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Tavakoli, Fatemeh. "On Visual Attention in Natural Images." Thesis, Linnéuniversitetet, Institutionen för fysik och elektroteknik (IFE), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-48256.

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By visual attention process biological and machine vision systems are able to select the most relevant regions from a scene. The relevancy process is achieved either by top-down factors, driven by task, or bottom-up factors, the visual saliency, which distinguish a scene region that are different from its surrounding. During the past 20 years numerous research efforts have aimed to model bottom-up visual saliency with many successful applications in computer vision and robotics.In this thesis we have performed a comparison between a state-of-the-art saliency model and subjective test (human eye tracking) using different evaluation methods over three generated dataset of synthetic patterns and natural images. Our results showed that the objective model is partially valid and highly center-biased.By using empirical data obtained from subjective experiments we propose a special function, the Probability of Characteristic Radially Dependency Function, to model the lateral distribution of visual attention process.

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Thillainathan, Niroshan [Verfasser]. "Model Driven Visual Programming for Serious Games / Niroshan Thillainathan." Kassel : Kassel University Press, 2016. http://d-nb.info/1125909552/34.

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Akbarinia, SeyedArash. "Computational model of visual perception: from colour to form." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/457882.

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La idea original de este proyecto fue estudiar la importancia del color en el reconocimiento de objetos. Comenzamos extendiendo la investigación previa sobre nombrar colores y demostrando la viabilidad de capturar términos de color a través de elipsoides. Aunque nuestros resultados superaron el estado-del-arte en dos bases de datos, vimos que los fenómenos de luces metaméricas y constancia de color debían ser tratados antes de cualquier procesamiento de color. Nuestra investigación de pares metaméricas mostró que son infrecuentes en el mundo real. Contrariamente a eso, la iluminación de una escena a menudo cambia drásticamente. Abordamos este problema proponiendo un modelo de constancia de color inspirado en la adaptación dinámica del centro-envolvente de las neuronas en la corteza visual. Esto se implementa a través de dos gaussianos asimétricos superpuestos, cuyas varianzas y alturas se ajustan al contraste local. Complementamos este modelo con un mecanismo genérico de agrupación variante por contraste que inversamente conecta el porcentaje de señal agrupada al contraste de una región. Los resultados sobre cuatro bases de datos fueron prometedores: nuestro modelo superó incluso los enfoques basados en el aprendizaje en muchos casos. Alentados por el éxito obtenido, ampliamos este enfoque para detectar los bordes de los objetos. Proponemos un modelo de detección de bordes basado en la primera derivada del kernel gaussiano. Incorporamos cuatro tipos de envolvente: completa, distante, orientación isogonal y ortogonal. Además, contamos con el mecanismo de agrupación en las áreas corticales superiores y la retroalimentación de la forma enviada a las zonas más bajas. Nuestros resultados en tres bases de datos mejoraron el estado-del-arte en los algoritmos sin aprendizaje. En resumen, hemos demostrado que los modelos inspirados biológicamente ofrecen soluciones para visión por computador, como nombrar colores, constancia de color y detección de bordes. Creemos que la mayor contribución de esta tesis doctoral es el modelado del concepto de modulación envolvente dinámica que muestra la importancia de la integración de envolvente variante por contraste. Los modelos propuestos se basan en sólo una parte de lo que sabemos sobre la visión humana. Por lo tanto, es natural complementarlos en trabajos futuros. La idea original d'aquest projecte va ser estudiar la importància del color al reconeixement d'objectes. Comencem estenent la investigació prèvia sobre l’anomenament de colors i demostrant la viabilitat de capturar termes de color a través d’el·lipsoides. Tot i que els nostres resultats van superar l'estat de l’art utilitzant dues bases de dades, vam veure que els fenòmens de llums metamèriques i constància de color havien de ser tractats abans de qualsevol processament de color. Sobre la nostra investigació de parells metamèriques concloem que són infreqüents en el món real. Contràriament a això, la il·luminació d'una escena sovint canvia dràsticament. Abordem aquest problema proposant un model de constància de color inspirat en l'adaptació dinàmica del centre-envoltant de les neurones al còrtex visual. Això s'implementa a través de dues gaussianes asimètriques superposades, les variàncies i les alçades de les quals s'ajusten amb el contrast local dels píxels. Complementem aquest model amb un mecanisme genèric d'agrupació variant per contrast que connecta inversament el percentatge de senyal agrupada amb el contrast d'una regió. Els resultats sobre quatre bases de dades van ser prometedors: el model proposat superava, en molts casos, els models basats en aprenentatge. Encoratjats per l'èxit obtingut, ampliem aquesta proposta per detectar les vores dels objectes. Proposem un model de detecció de vores basat en la primera derivada del nucli gaussià. Incorporem quatre tipus de voltants: completa, distant, orientació isogonal i ortogonal. A més, comptem amb el mecanisme d'agrupació en les àrees corticals superiors i la retroalimentació de la forma, que és enviada a les zones més baixes. Els nostres resultats en tres bases de dades van millorar l'estat de l’art en els algoritmes sense aprenentatge. En resum, hem demostrat que els models biològicament inspirats ofereixen solucions per a visió per computador, com anomenament de colors, constància de color i detecció de vores. Creiem que la major contribució d'aquesta tesi doctoral és el modelatge del concepte de modulació envoltant dinàmica que mostra la importància de la integració de l’entorn que varia segons el contrast. Els models proposats es basen en una part del que sabem sobre la visió humana. Per tant, és natural complementar-los en treballs futurs.

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Schlör, Rainer C. "Symbolic timing diagrams a visual formalism for model verification /." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=963925326.

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Tissainayagam, Prithiviraj 1967. "Visual tracking : development, performance evaluation, and motion model switching." Monash University, Dept. of Electrical and Computer Systems Engineering, 2001. http://arrow.monash.edu.au/hdl/1959.1/8944.

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Somasundaram, Arunachalam. "A facial animation model for expressive audio-visual speech." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1148973645.

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Harder, Robert W. "A quantitative model for assessing visual simulation software architecture." Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/10790.

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The U.S. military is the largest single user of simulation in the world, and our visual simulations can be software intensive systems with a lifespan of many years. Managers of these simulations need tools to help them make better decisions at the architectural level. Currently, no such quantitative models with supporting metrics exist for this purpose. There are properties that are held as positive characteristics in visual simulation architectures. Visual simulation architectures can be distinguished from one another based on three characteristics: (1) openness, as defined by the use of standards, licensing, and support of innovation; (2) reuse, as defined by the potential of being used in subsequent projects; and (3) agility, as defined by the ease with which software can be integrated, reconfigured, or repurposed. In this research, we propose quantifiable models to measure openness, reuse, and agility, and claim that the models adequately distinguish visual simulation frameworks from one another. Furthermore, we claim that these models can enhance military acquisition decisions. The results show that application of the metrics offers a level of granularity that is useful in identifying key differences in simulation frameworks that could have profound downstream implications.

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Chen, Zhijian 1972 Cowan Nelson. "Boundary conditions for a visual working memory capacity model." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/7013.

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Title from PDF of title page (University of Missouri--Columbia, viewed on Feb 26, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Dissertation advisor: Dr. Nelson Cowan. Vita. Includes bibliographical references.

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Dissertations / Theses on the topic 'Visual mode'

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