Tesis: "Camerana"

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Cabiati, Alessandro. "Baudelairism and modernity in the poetry of Scapigliatura". Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/25764.

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In the 1860s, the Italian Scapigliati (literally ‘the dishevelled ones’) promoted a systematic refusal of traditional literary and artistic values, coupled with a nonconformist and rebellious lifestyle. The Scapigliatura movement is still understudied, particularly outside Italy, but it plays a pivotal role in the transition from Italian Romanticism to Decadentism. One of the authors most frequently associated with Scapigliatura in terms of literary influence as well as eccentric Bohemianism is the French poet Charles Baudelaire, certainly amongst the most innovative and pioneering figures of nineteenth-century European poetry. Studies on the relationship between Baudelaire and Scapigliatura have commonly taken into account only the most explicit and superficial Baudelairian aspects of Scapigliatura’s poetry, such as the notion of aesthetic revolt against a conventional idea of beauty, which led the Scapigliati to introduce into their poetry morally shocking and unconventional subjects. Furthermore, these studies have not focused on drawing a detailed and systematic picture that portrays the connections not only between Baudelaire and the poets of Scapigliatura, but also among the Scapigliati themselves. As a result, the true extent of Baudelaire’s influence has not been acknowledged. This study strives to fill the gaps in the existing scholarship. My thesis posits that Baudelaire’s influence on the poetry of Scapigliatura, almost exclusively related to the first two editions of the verse collection Les Fleurs du Mal, is more profound and substantial than scholarship has heretofore recognised. The thesis consists of three chapters, each dedicated to one of the three most important poets of Scapigliatura, namely Arrigo Boito, Emilio Praga, and Giovanni Camerana. The investigation of Baudelaire’s influence on the Scapigliati is conducted both individually, searching for Baudelairian features in their work, and comparatively, contrasting differences and aiming to locate similarities. The main focus is on the major poetic works that are strictly related to the phases in these poets’ careers when they were associated with Scapigliatura: Boito’s Il libro dei versi and Re Orso; Praga’s Tavolozza and Penombre; and Camerana’s poems written between 1863 and 1869. My aim is to establish if there was what can be called a ‘Baudelairian school’ within Scapigliatura. Ultimately, I argue that the relationship between Baudelaire and the poetry of Scapigliatura is more complex than has previously been understood. I demonstrate a vast and wide-ranging influence – on a conceptual, lexical, and stylistic level – on the three poets discussed in this work, which can be traced back to the very beginning of their careers in the early 1860s. Far from being simply an element of aesthetic and moral rebellion in order to épater le bourgeois, the Baudelairism of Boito, Praga, and Camerana in their Scapigliatura years accomplished two ends: on the one hand, it preserved some of the more traditional aspects of Baudelaire’s poetry, which have been largely overlooked by Italian literary scholarship on Scapigliatura; on the other hand, it introduced a thematic and formal modernity into Italian poetry, paving the way for the Decadent movement as well as the twentieth-century avant-gardes.

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2

Giordano, Céline. "La Scapigliatura (1862-1885) : approches historiques et critiques". Paris 4, 1997. http://www.theses.fr/1997PA040178.

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Ce travail se divise en deux parties comptant chacune trois chapitres. La première partie, du mot aux thèmes, réfléchit sur les origines du nom Scapigliatura afin de comprendre pourquoi ce terme désigne un mouvement littéraire et artistique, qui eut Milan pour foyer, et se développa entre 1860 et 1885. Le roman de Cletto (1828-1906), La Scapigliatura e il 6 Febbraio (1862), et le rôle de la presse dans la fortune de ce mot sont étudiés au premier chapitre, Scapigliatura et sémantique. Dans le second, au temps de la Scapigliatura, une perspective diachronique permet de présenter les principaux auteurs de ce courant. Quelques textes qui ont valeur de manifeste y sont également étudiés. Le troisième chapitre, identité de la Scapigliatura, se propose de dégager les traits caractéristiques de la Scapigliatura, à travers la formation culturelle de ses représentants et quelques thèmes fédérateurs. A partir des conclusions de la première partie, nous avons, dans la seconde, regards sur trois itinéraires, mené des analyses plus approfondies sur trois auteurs : Igino Ugo Tarchetti (1839-1869), Arrigo Boito (1842-1918), Giovanni Camerana (1845- 1905). Pour I. Ugo Tarchetti seuls les textes narratifs, ils forment la part la plus importante de son œuvre, sont examinés. Nous y observons les procédés narratifs employés par l'auteur, ainsi que les formes et fonctions de l'exotisme présent dans nombre de ses récits. Pour Arrigo Boito nous travaillons sur un corpus restreint, quatre nouvelles, qui sont, cependant, très révélatrices de la forma mentis de leur auteur. Quant à l'œuvre de Giovanni Camerana elle se résume à un recueil de poèmes et à des commentaires de tableaux, publiés dans une revue d'art. Après avoir souligné les thèmes récurrents de son œuvre poétique, nous proposons une étude des influences réciproques entre l'écriture critique et l'écriture poétique de l'auteur
This work falls into two parts, each one comprising three chapters. The first part, from the word to the themes, is dedicated to the study of the origins of the noun Scapigliatura in order to understand why that term designates a literary and artistic movement which started in Milan and spanned the years between 1860 and 1885. The novel by Cletto Arrighi (b. 1828 - d. 1906), la Scapigliatura e il 6 febbraio (published in 1862) and the role of the press in popularizing that term are studied in the first chapter, Scapigliatura and semantics. In the second chapter, at the time of the Scapigliatura, a diachronic perspective permits an introduction to the main authors of that movement. A few texts, which have manifesto value, are also studied. The third chapter, the identity of the Scapigliatura, aims at defining the characteristic features of the Scapigliatura by studying the cultural upbringing of its representatives and some themes they have in common. In the second part, an outlook on three itineraries, we used the conclusions of the first pat to make deeper analyses of three authors, I. Ugo Tarchetti (b. 1839- d. 1869), Arrigo Boito (b. 1842- d. 1918), and Giovanni Camerana ( b. 1845- d. 1905). Concerning I. Ugo Tarchetti only his narrative texts have been examinated, since they constitute the major part of his works. We have studied the narrative processes used by the author, as well as the forms and functions of the exotism recurrent in many of his writings. Concerning Arrigo Boito, we have worked on four short stories only, which, however, reveal much about the author's forma mentis. As for Giovanni Camerana's works, they are limited to a collection of poems and commentaries on paintings, published in an art review. After having underlined the themes recurring in his poetical works, we propose a study of the reciprocal influences between the author's critical and poetical writings

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3

Hellberg, Simon y Dominik Hollidt. "Evaluation of Camera Resolution in Optical Flow Estimation Using Event-Based Cameras". Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280321.

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Developments in event-based camera technology and their recent increase in pixel count raised the question of whether resolution helps the accuracy and performance of algorithms. This thesis studies the impact of resolution on optical flow estimation for event-based cameras. For this purpose, we created a data set containing a mix of synthetic scenes and real camera recordings with ground truth available. For the modeling of low-resolution data, we designed three different downsampling algorithms. The camera used for the real scene recordings was the Prophesee (CSD3SVCD), which was determined to be the best out of the current state-of-the-art cameras in a prestudy. The camera investigation evaluated the camera’s performance in terms of temporal and spatial accuracy. In order to answer the question, whether resolution benefits the accuracy of optical flow estimation, we ran a total of 13 algorithms variations from four algorithm families (Lucas-Kanade [1, 2], Local-Planes fitting [2, 3], direction-selective filter [2, 4] and patch match [5]) on the data set. We then analysed their performance in terms of processing time, output density, angular error, endpoint error and relative endpoint error. The results show that no global correlation between resolution and accuracy across all algorithms can be identified. However, methods show individually different behaviour on different data. The best performing methods, the patch match algorithms, seemed to prefer the less dense downsampled data. The evaluation also showed that rather than resolution, the specific characteristics of the data seemed to have a larger impact on accuracy. Thus denoised data might increase accuracy more than a change of resolution.
De senaste utvecklingarna inom händelsebaserad kamerateknologi och deras nyligen utökade mängd pixlar ställer frågan om denna högre upplösning påverkar precision samt prestanda för algoritmer. Den här rapporten studerar påverkan av upplösning på optiskt flödes-algoritmer för händelsebaserade kameror. För att göra detta skapas en dataupsättning av riktiga och syntetiska scener, där det sanna optiska flödet är känt. För att modellera den lågupplösta datan används tre olika nedskalningsalgoritmer. Kameran som används för att spela in de riktiga scenerna var Prophesee (CSD3SVCD), som vi avgjorde var den bästa av de nuvarande existerande kamerorna i en förstudie. I förstudien bedömde vi kamerornas precision i tid samt rymd. För att besvara vår huvudsakliga fråga testades totalt 13 algoritmvariationer från fyra algoritmfamiljer (Lucas-Kanade [1, 2], Local Planes fitting [3, 2], direction-selective filter [4, 2] och patch match [5]). Vi analyserar deras prestanda i beräkningstid, densitet av vektorer, ändpunktsfel, relativt ändpunktsfel och vinkelfel. Resultaten visar ingen global trend över alla algoritmer för precision av optiskt flöde baserat på upplösning. Individuella trender kan dock skönjas inom algoritmfamiljer. Den bäst presterande algoritmfamiljen, patch match, verkade föredra de mindre täta typerna av nedskalning. Utvärderingen visar också att över upplösning så verkar datans specifika karaktäristik ha större påverkan på precision. Därför kan brusreducerad data ha mer påverkan på en algoritms precision än en ändrad upplösning.

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4

McLemore, Donald Rodney Jr. "Layered Sensing Using Master-Slave Cameras". Wright State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=wright1253565440.

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Khan, Yaser Mohammad. "Automated cameraman". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/61163.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.
Cataloged from PDF version of thesis.
Includes bibliographical references.
Advances in surveillance technology has yielded cameras that can detect and follow motion robustly. We applied some of the concepts learnt from these technologies to classrooms in an effort to come up with a system that would automate the process of capturing oneself on video without needing to resort to specialized hardware or any particular limitation. We investigate and implement several image differencing schemes to detect and follow motion of a simulated lecturer, and propose possible future directions for this project.
by Yaser Mohammad Khan.
M.Eng.

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FAUSTINO, DOS SANTOS JOÂO PEDRO. "Estudio teórico-práctico de la Cameroa Obscura y de la Camera Lucida. Una nueva propuesta de máquina de dibujo digital". Doctoral thesis, Universitat Politècnica de València, 2012. http://hdl.handle.net/10251/17867.

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La tesis propone la creación y el desarrollo de una nueva máquina de dibujo digital en la que el acto de dibujar permita ver más y conocer mejor. Con base en los estudios teóricos-prácticos de la cámara oscura y la cámara lúcida, como dispositivos para dibujo de imagen. En la primera parte se presenta la investigación teórica-práctica de estos dispositivos, con especial énfasis en el análisis histórico y conceptual de la evolución tecnológica que se complementa con la utilización de las máquinas como un medio para representar y cuestionar la realidad. Este análisis se complementa con la presentación de otras referencias que van desde la ingeniería informática a las artes visuales, durante el siglo 20 hasta la actualidad, como contribución a un conocimiento actualizado de los conceptos subyacentes del dibujo y los mecanismos que aquí se presentan. En los Capítulos 2 a 4 se realiza un estudio de los mecanismos de percepción visual que participan en este tipo de dibujo (cap.2), el dibujo como un medio para la comprensión (cap.3), y la localización como una posible intención de ver más (cap. 4). Estos tres capítulos son transversales en toda la tesis. En la segunda parte, los experimentos que apoyan la metodología utilizada y que están en el origen de las diferentes versiones de la máquina son presentados. El módulo computacional está programado en Pure Data, y toda la máquina se compone como un sistema modular, con una gran elasticidad y posibilidades de desarrollo. El uso de la máquina permite la percepción del acto de dibujar, y al mismo tiempo indica nuevas posibilidades para futuros desarrollos.
Faustino Dos Santos, JP. (2012). Estudio teórico-práctico de la Cameroa Obscura y de la Camera Lucida. Una nueva propuesta de máquina de dibujo digital [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/17867
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Cameron, Robin A. "Homework that helps: identifying aspects of meaningful biology homework assignments". Montana State University, 2012. http://etd.lib.montana.edu/etd/2012/cameron/CameronR0812.pdf.

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Homework assignments were evaluated to see which types of assignments improved concept retention and increased the interest of diverse learners in introductory biology classes. The assignments were differentiated with attention to multiple intelligences, integration of the arts, non-textbook readings, and inquiry. The efficacy of these homework assignments was evaluated through a variety of instruments, including pretests and posttests, responses to journal prompts and surveys, and field notes. Students communicated that homework assignments were a valuable extension of classroom learning. They appreciated different types of homework assignments for varied reasons, including assignments they did not label as fun.

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Cameron, Jeffrey Carlyle. "Characterization of the Arabidopsis compact inflorescence 3 (cif3) mutant and identification of the cif3 gene product as a chloroplast localized putative ATPase". Thesis, Montana State University, 2005. http://etd.lib.montana.edu/etd/2005/cameron/CameronJ0505.pdf.

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Dalmer, Nathalia. "From Shaky Self-Held Cameras toProfessional Camera Teams -A Thematic Analysis of How YouTube Audiences Perceive theProfessionalization of Vlog Production Styles". Thesis, Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-94225.

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The aim of this thesis is to provide insight into how YouTube audiences perceive theprofessionalization of vlog production styles and what happens to the parasocial relationshipbetween viewer and vlogger, especially in relation to authenticity, in relation to this. This is doneby a thematic analysis of comments on Valeria Lipovetsky’s YouTube video “We Need ToTalk”, which serves as a case study. The analysis is done in background to theories ofprofessionalization of influencers, parasocial relationships and authenticity. The results show thatthere is a tension between the perceived authenticity of the vlogger and the professionalizationof vlog production style that is affecting the parasocial relationship between viewer and vloggernegatively. The distinguished themes point to vlogs filmed by a camera team being perceived toresemble reality television which is making the viewers feel disconnected with the vlogger. It isrevealed that the audience prefers vlogs where the vlogger is holding the camera themselves, asthat is perceived as more personal and authentic.

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Trasiev, Yavor. "Performance Modelling and Simulation of Automotive Camera Sensors : An exploration of methods and techniques to simulate the behaviour of lane detection cameras". Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-175361.

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Nowadays safety, along with efficiency, is one of the two strongest shaping forces of the automotive world, with advanced active safety applications being the major concentration of effort. Their development depends heavily on the quality of sensor data, a detailed measure of which is often up to the automotive manufacturers to derive, since the original equipment manufacturers (OEMs) may not disclose it on trade secrecy grounds. A model would not only provide a measure of the real-world performance of the sensor, but would also enable a higher degree of simulation accuracy which is vital to active safety function development. This is largely due to the high cost and risk involved in testing, a significant part of which is possible to be done in simulation alone. This thesis is an effort to derive a sensor model on behalf of Volvo Trucks of the performance of one of the most crucial sensors in current active safety - a lane detection camera.The work is focused on investigating approaches for modelling and simulation implementation of the lane estimation process within the black-box camera using reverse-engineering of the sensor's principles of operation. The main areas of analysis to define the factors that affect performance are the optics, image sensor, software and computer vision algorithms, and system interface. Each of them is considered separately and then methods for modelling are proposed, motivated, and derived accordingly. Finally, the finished model is evaluated to provide a measure of work success and a basis for further development.
Säkerhet är idag, tillsammans med effektivitet, en av de två starkaste förändringskrafterna i bilvärlden. Störst fokus ligger på avancerade aktiva säkerhetsfunktioner. Deras utveckling beror till stor del på kvaliteten på sensordata. En detaljerad modell för sensordata är ofta upp till fordonstillverkarna att härleda, eftersom tillverkare av sensorn ofta inte vill lämna ut sådan information. En modell ger inte bara ett mått på den verkliga prestandan hos sensorn, men ger också möjlighet till en högre grad av simuleringsnoggrannhet vilket är avgörande för utveckling av aktiva säkerhetsfunktioner. Tester är kostsamma och medför risker och en noggrann modell gör att tester kan utföras i simulering vilket minskar kostnader och risker. I denna avhandling härleds en sensormodell på uppdrag av Volvo Lastvagnar. Sensorn i fråga är en av de viktigaste sensorerna i det nuvarande aktiva säkerhetssystemet, kameran för att följa en körfil på vägen. Arbetet är fokuserat på undersökning av metoder för modellering och simulering av processen för filföljning baserat på sensorns funktionsprinciper. De viktigaste områdena för analys för att definiera de faktorer som påverkar prestanda är optik, bildsensorn, programvara, datorseendealgoritmer och systemets gränssnitt. Var och en av dessa behandlas separat och sedan föreslås och motiveras metoder för modellering. Slutligen utvärderas den färdiga modellen för att ge ett mått på hur framgångsrikt arbetet varit samt för att lägga en grund för ytterligare utveckling.

The thesis work was carried out at Volvo Group Trucks Technology in Göteborg, Sweden. Supervisor for GTT: Mansour Keshavarz.

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Berndtsson, Therese. "Thermographic Measurements of Hot Materials Using a Low- to High-speed RGB-camera : Prospect of RGB-cameras Within the Field of Thermographic Measurements". Thesis, Luleå tekniska universitet, Rymdteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74655.

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Monitoring the thermal behavior of material while heated or cooled is of great importance in order to understand the structural behavior of materials. This thesis aims to investigate the prospects for imaging hot materials using an RGB-camera. The main motivation of using an RGB-camera is the very simple set-up and, in comparison to thermal IR-cameras, low price. A method and code enabling thermographic measurements in the temperature range of 800°C up to 1500°C has been produced. Calibration of the RGB-camera was made, the accuracy was predicted to be poor within the temperature range of 1000°C up to about 1200°C. The poor accuracy of the calibration within this range has its source in the non-linear (and irregular) response of the CMOS sensor prohibiting a valid exposure time function to be accurately determined. The calibration is thus performed with different settings (i.e different exposure times and aperture settings) but without any correction for the setting change. The validation experiments were performed in (or very close to) the temperatures where the temperature error was predicted to be the largest. An under-estimation of approximately 30-50°C in the temperature range between 950°C and 1015°C could be seen corresponding to an absolute error of about 3-5% in this temperature range. The accuracy is however thought to increase with the temperature above a temperature of approximately 1250°C . It is possible to perform a temperature transform of target images with temperatures above 1500°C since the Look-up-table produced for the temperature transform extends to about 3000°C . However, the accuracy is unknown since no calibration or validation experiments within these ranges were performed. The result of the calibration and experiments along with the theoretical assessment within the thesis gave background to the discussion of optimal imaging system for thermographic measurements. In order to receive more accurate temperature measurements, a CCD-sensor is to prefer since producing more uniform images with a more linear and predictable response. This would most likely enable the implementation of the camera setting influence. To receive better color accuracy but mainly to prevent channel overlap a system using three sensors instead of one (as for the current imaging system) is to prefer. This would result in larger freedom of channel choice and thus, the temperature transform can somewhat be customized for the specific measured temperature ranges. A brief discussion concerning the overall choice of camera was also brought up. Since the temperature range is large and the red, green and blue channels are sensitive to temperature changes the demands on the sensor dynamic range will be high in order to receive a linear response, or even a fully predictable response, across the whole temperature range. A suggested option to the RGB-camera, still offering the very simple set up, is a dual-wavelength camera in the near (or medium wavelength) infrared range.
Kartläggning av materialförändringar vid uppvärmning eller nedkylning är av stor betydelse för förståelsen för ett materials strukturella beteende. Denna masteruppsatts syftar till att utforska utsikterna för termisk avbildning av varma material med en RGB-kamera. I detta inkluderas kalibrering av kamera, validerings experiment och teoretiska efterforskningar. Det huvudsakliga motivet för användning av en RGB-kamera är den enkla uppställningen (endast en kamera där de olika färg-lagren är alignerade) och det, i jämförelse med många IR-kameror, låga priset. En metod och en kod som möjliggör termografiska mätningar (både video och stillbild) inom temperaturområdet 800°C till 1500°C har tagits fram där kalibrering av kameran är inkluderat. Efter utförd kalibrering förutspåddes att noggrannheten av mätningarna mest troligt skulle vara bristfälliga i området 1000°C upp till cirka 1200°C. Denna bristfälliga noggrannheten har sin grund i den icke-linjära (och i vissa fall oregelbundna) sensorresponsen vilket, i huvudsak, försvårade bestämning av exponeringstidens signalinflytande. Med anledning av detta gjordes en kalibrering med fixa inställningar, det vill säga; fixa exponeringstider och bländarinställningar för mätningar inom specifika temperaturområden, men utan korrigering vid förändring av kamerainställningar. Valideringsexperimenten som utfördes var i (eller mycket nära) det temperaturområde där de största temperaturavvikelserna förutspåddes vara. Utförd validering av metod för temperaturavbildning visade att mätningen med RGB-kameran underskattade temperaturerna med cirka 30-50°C i temperaturområdet mellan 975-1015° motsvarar ett absolut fel på cirka 3-5% inom detta temperaturområde. Det är dock troligt att noggrannheten av mätningarna ökar då temperaturerna av det avbildade objektet är större än 1250°C då man i kalibreringsprocessen kunde se mindre avvikelser i detta område. Med producerad look-up table (skapad i kalibreringsprocessen) är det möjligt att utföra temperaturtransformationer för avbildningar av objekt som har temperaturer över 1500°C, dock med okända osäkerheter då varken kalibrerings- eller valideringsexperiment har utförts för så pass höga temperaturer. Resultatet av kalibreringen och experimenten, tillsammans med en teoretisk utredning av begränsningar och möjliga förbättringar vid termografiska mätningar, lade grunden till diskussion gällande optimalt bildsystem. Rekommendationer för att i framtiden utföra mer exakta termografiska mätningar med en RGB-kamera togs fram där en 3-CCD kamera föreslogs för att förbättra mätresultaten. En CCD sensor är att föredra framför en CMOS sensor då de icke-verkliga pixel-avvikelserna inte är lika kritiska för en CCD-sensor som för en CMOS-sensor. CCD-sensorn är dessutom i många aspekter mer tillförlitlig vid vetenskapliga mätningar och har oftast mer linjär och förutsägbar respons vilket mest troligt skulle möjliggöra inkludering av exponeringstidens signalinflytande. En kort diskussion gällande val av kanaler (våglängdsområden) som kan användas vid temperaturmätningar tas även upp i avhandlingen. Eftersom temperatur-mätområdet är stort och den röda, gröna och blå kanalen är känsliga för temperaturförändringar (liten förändring av temperatur ger stor förändring i uppmätt emission) så kommer kravet på det dynamiska omfånget av sensorn vara högt. Ett alternativ till RGB-kameran, som fortfarande har en enkel uppställning, är en dubbel-sensor-kamera med ett dubbelt bandpass-filter i det när-infraröda (NIR) området. Detta kräver dock en utredning för hur sensorer i detta område påverkar den uppmätta signalen.

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12

Dalmer, Nathalia. "From Shaky Self-Held Cameras to Professional Camera Teams -A Thematic Analysis of How YouTube Audiences Perceive the Professionalization of Vlog Production Styles". Thesis, Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-94225.

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The aim of this thesis is to provide insight into how YouTube audiences perceive the professionalization of vlog production styles and what happens to the parasocial relationship between viewer and vlogger, especially in relation to authenticity, in relation to this. This is done by a thematic analysis of comments on Valeria Lipovetsky’s YouTube video “We Need To Talk”, which serves as a case study. The analysis is done in background to theories of professionalization of influencers, parasocial relationships and authenticity. The results show that there is a tension between the perceived authenticity of the vlogger and the professionalization of vlog production style that is affecting the parasocial relationship between viewer and vlogger negatively. The distinguished themes point to vlogs filmed by a camera team being perceived to resemble reality television which is making the viewers feel disconnected with the vlogger. It is revealed that the audience prefers vlogs where the vlogger is holding the camera themselves, asthat is perceived as more personal and authentic.

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13

Bala, Saimir. "Mining Projects from Structured and Unstructured Data". Jens Gulden, Selmin Nurcan, Iris Reinhartz-Berger, Widet Guédria, Palash Bera, Sérgio Guerreiro, Michael Fellman, Matthias Weidlich, 2017. http://epub.wu.ac.at/7205/1/ProjecMining%2DCamera%2DReady.pdf.

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Companies working on safety-critical projects must adhere to strict rules imposed by the domain, especially when human safety is involved. These projects need to be compliant to standard norms and regulations. Thus, all the process steps must be clearly documented in order to be verifiable for compliance in a later stage by an auditor. Nevertheless, documentation often comes in the form of manually written textual documents in different formats. Moreover, the project members use diverse proprietary tools. This makes it difficult for auditors to understand how the actual project was conducted. My research addresses the project mining problem by exploiting logs from project-generated artifacts, which come from software repositories used by the project team.

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14

Kim, Jae-Hak y Jae-Hak Kim@anu edu au. "Camera Motion Estimation for Multi-Camera Systems". The Australian National University. Research School of Information Sciences and Engineering, 2008. http://thesis.anu.edu.au./public/adt-ANU20081211.011120.

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The estimation of motion of multi-camera systems is one of the most important tasks in computer vision research. Recently, some issues have been raised about general camera models and multi-camera systems. Using many cameras as a single camera is studied [60], and the epipolar geometry constraints of general camera models is theoretically derived. Methods for calibration, including a self-calibration method for general camera models, are studied [78, 62]. Multi-camera systems are an example of practically implementable general camera models and they are widely used in many applications nowadays because of both the low cost of digital charge-coupled device (CCD) cameras and the high resolution of multiple images from the wide ﬁeld of views. To our knowledge, no research has been conducted on the relative motion of multi-camera systems with non-overlapping views to obtain a geometrically optimal solution. ¶ In this thesis, we solve the camera motion problem for multi-camera systems by using linear methods and convex optimization techniques, and we make ﬁve substantial and original contributions to the ﬁeld of computer vision. First, we focus on the problem of translational motion of omnidirectional cameras, which are multi-camera systems, and present a constrained minimization method to obtain robust estimation results. Given known rotation, we show that bilinear and trilinear relations can be used to build a system of linear equations, and singular value decomposition (SVD) is used to solve the equations. Second, we present a linear method that estimates the relative motion of generalized cameras, in particular, in the case of non-overlapping views. We also present four types of generalized cameras, which can be solvable using our proposed, modiﬁed SVD method. This is the ﬁrst study ﬁnding linear relations for certain types of generalized cameras and performing experiments using our proposed linear method. Third, we present a linear 6-point method (5 points from the same camera and 1 point from another camera) that estimates the relative motion of multi-camera systems, where cameras have no overlapping views. In addition, we discuss the theoretical and geometric analyses of multi-camera systems as well as certain critical conﬁgurations where the scale of translation cannot be determined. Fourth, we develop a global solution under an L∞ norm error for the relative motion problem of multi-camera systems using second-order cone programming. Finally, we present a fast searching method to obtain a global solution under an L∞ norm error for the relative motion problem of multi-camera systems, with non-overlapping views, using a branch-and-bound algorithm and linear programming (LP). By testing the feasibility of LP at the earlier stage, we reduced the time of computation of solving LP.¶ We tested our proposed methods by performing experiments with synthetic and real data. The Ladybug2 camera, for example, was used in the experiment on estimation of the translation of omnidirectional cameras and in the estimation of the relative motion of non-overlapping multi-camera systems. These experiments showed that a global solution using L∞ to estimate the relative motion of multi-camera systems could be achieved.

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15

Kim, Jae-Hak. "Camera motion estimation for multi-camera systems /". View thesis entry in Australian Digital Theses Program, 2008. http://thesis.anu.edu.au/public/adt-ANU20081211.011120/index.html.

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Demian, Ziad Elias. "Urbanmorphology - Cameron Station". Thesis, Virginia Tech, 1996. http://hdl.handle.net/10919/35358.

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Urbanmorphology is the evolutionary process where urban centers experience growth or decline due to series of changes and events or changes leading to events. This thesis came about due to an event that has a big impact on an urban environment, a military base on a large swath of land was closed and the property became available for development. Closed military bases provide us with opportunities to accelerate urbanmorphology, to simulate the organic evolution of an urban center and to explore urban and architectural ideas that, otherwise, are very difficult to test. The results could be used as models for adaptation in other, less expansive and more restrictive applications. This opportunity allows us to address todayâ s constituencies using todayâ s technology, attempt to define our era and hopefully help in defining the future exactly as the past helped in defining ours.
Master of Architecture

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17

Nagdev, Alok. "Georeferencing digital camera images using internal camera model". [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000343.

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18

Nyberg, Ludwig y Marcus Tjellander. "Camera stabilization". Thesis, KTH, Maskinkonstruktion (Inst.), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-226685.

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A way to maintain a xed position in three dimensional space is the use ofa stabilization system. The use of this technology has greatly increased overthe years and can be found in products like cameras and quadrocopters. Thisresearch focuses on a handheld gyro-stabilized mount where the purpose is tostabilize a camera from disturbances using combined methods, and to analyzeits behaviour.This report will describe the theory behind self-stabilization and construction ofthe prototype. Method for modeling, construction and testing for this problemwill also be discussed.The prototype is equipped with an IMU sensor that calculate the angles changeson the body in the space. The IMU consists of three accelerometer and threegyroscope, one for each axis to sense rotation and acceleration. Three motors areused, one on each axis for movement in the three dimensions and are controlledby an Arduino. The accelerometers and gyroscopes are used together with aPID controller to achieve a feedback-system.Using both the accelerometer and gyroscope to complement each others disadvantagesand a Kalman lter to lter out noise from the raw data, resulted ina stable PID controller and a functional stabilizer.
Ett sätt att behålla ett fast läge i det tredimensionella rummet är att anvandaett stabiliseringssystem. Teknologin har börjat användas mycket mer de senasteåren och kan hittas i föremål som kameror och quadrocopters. Den här forskningen fokuserar på ett handhållet gyro-stabiliserad stativ, där syftet är att stabilisera en kamera från störningar genom kombinerade metoder och sedan attanalysera dess beteende.Den här rapporten kommer beskriva teorin bakom självstabilisering och konstruktionen av prototypen. Metoder för modelering, konstruktion och tester för det här problemet kommer också diskuteras.Prototypen är utrustad med en IMU sensor som beräknar vinkelförändringar påkroppen i rymden. IMU sensorn består av tre accelerometrar och tre gyroskop,en för varje axel som känner av rotation och acceleration. Tre motorer används,en till varje axel för att styra rotationen i de tre dimensionerna, dessa styrs aven Arduino. Kombinering av accelerometern och gyroskopet tillsammans meden PID kontroll implementeras för att uppna ett återkopplingssystem.Användandet av både accelerometern och gyroskopet kompletterar varandrasbrister och ett kalman filter som filterar bort brus fran rådatan, resulterar i enstabil PID kontroller och ett fungerade stabiliseringssystem.

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19

Zhao, Jian. "Camera Planning and Fusion in a Heterogeneous Camera Network". UKnowledge, 2011. http://uknowledge.uky.edu/ece_etds/2.

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Wide-area camera networks are becoming more and more common. They have widerange of commercial and military applications from video surveillance to smart home and from traffic monitoring to anti-terrorism. The design of such a camera network is a challenging problem due to the complexity of the environment, self and mutual occlusion of moving objects, diverse sensor properties and a myriad of performance metrics for different applications. In this dissertation, we consider two such challenges: camera planing and camera fusion. Camera planning is to determine the optimal number and placement of cameras for a target cost function. Camera fusion describes the task of combining images collected by heterogenous cameras in the network to extract information pertinent to a target application. I tackle the camera planning problem by developing a new unified framework based on binary integer programming (BIP) to relate the network design parameters and the performance goals of a variety of camera network tasks. Most of the BIP formulations are NP hard problems and various approximate algorithms have been proposed in the literature. In this dissertation, I develop a comprehensive framework in comparing the entire spectrum of approximation algorithms from Greedy, Markov Chain Monte Carlo (MCMC) to various relaxation techniques. The key contribution is to provide not only a generic formulation of the camera planning problem but also novel approaches to adapt the formulation to powerful approximation schemes including Simulated Annealing (SA) and Semi-Definite Program (SDP). The accuracy, efficiency and scalability of each technique are analyzed and compared in depth. Extensive experimental results are provided to illustrate the strength and weakness of each method. The second problem of heterogeneous camera fusion is a very complex problem. Information can be fused at different levels from pixel or voxel to semantic objects, with large variation in accuracy, communication and computation costs. My focus is on the geometric transformation of shapes between objects observed at different camera planes. This so-called the geometric fusion approach usually provides the most reliable fusion approach at the expense of high computation and communication costs. To tackle the complexity, a hierarchy of camera models with different levels of complexity was proposed to balance the effectiveness and efficiency of the camera network operation. Then different calibration and registration methods are proposed for each camera model. At last, I provide two specific examples to demonstrate the effectiveness of the model: 1)a fusion system to improve the segmentation of human body in a camera network consisted of thermal and regular visible light cameras and 2) a view dependent rendering system by combining the information from depth and regular cameras to collecting the scene information and generating new views in real time.

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20

Lapovski, Elvin y Timo Dadashvand. "Thermal Cameras and People". Thesis, Malmö högskola, Fakulteten för teknik och samhälle (TS), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20811.

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Användningen av termisk infraröd strålning sprider sig till nya användningsområden. Ett område är säkerhetsövervakning via värmekameror. Värmekameror har en fördel jämfört med vanliga säkerhetskameror som endast bearbetar synligt ljus eftersom detta inte påverkar värmekameran i samma utsträckning. Syftet med detta projekt är att undersöka möjligheter för att åstadkomma högre noggrannhet i temperaturmätningar med en värmekamera. Genom att använda oss av tekniker som används som bästa praxis inom liknande områden kalibreras vår värmekamera till högre noggrannhet. Detta med hjälp av tekniker som två-punktskalibrering med svartkroppar för att få ett referensvärde för två olika temperaturer. Därefter kan andra okända temperaturer beräknas. Vi använder oss av medelvärdesbildning för att bli av med temporalt och spatialt brus. Med denna metod får vi en bättre bild av genomsnittstemperaturen för varje värmebild. Vår kalibrering av värmekameran testas sedan i ett experiment där vi mätte högerhänderna på testpersonerna. Dessa resultat jämförs sedan med en annan värmekamera som inte kalibrerats. Testresultaten visar att vi lyckats uppnå en högre noggrannhet av värmekameran med en variation högst 0.348°C vid mätning av en människas hudtemperatur. Detta visar att kalibreringen är i allmänhet gynnsam.
The usage of thermal infrared radiation spreads to new fields. One area of use is security monitoring with thermal cameras. Thermal cameras have an advantage over regular security cameras which only processes visible light as this does not affect the thermal camera to the same extent. The purpose of this project is to investigate the possibilities for achieving higher accuracy in temperature measurement with a thermal camera. By using best practice methods applied in similar areas, our thermal camera is calibrated to measure temperature with a higher accuracy. Methods such as two- point calibration with black bodies are used to get two reference values from two different temperatures. The reference values can then be used to calculate unknown temperatures. Image averaging is applied to get rid of temporal and spatial noise. This method provides a clearer thermogram of the average temperature. Our calibration of the thermal camera is tested in an experiment where we measure the right hands of test subjects. These results are compared with the results measured from a non-calibrated thermal camera. The test results show that we managed to achieve a higher accuracy with the thermal camera with a maximum variation of 0.348°C when measuring human skin temperature. This shows that the calibration is generally favorable.

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21

Isaksson, Jakob y Lucas Magnusson. "Camera pose estimation with moving Aruco-board. : Retrieving camera pose in a stereo camera tolling system application". Thesis, Tekniska Högskolan, JTH, Datateknik och informatik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-51076.

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Stereo camera systems can be utilized for different applications such as position estimation,distance measuring, and 3d modelling. However, this requires the cameras to be calibrated.This paper proposes a traditional calibration solution with Aruco-markers mounted on avehicle to estimate the pose of a stereo camera system in a tolling environment. Our method isbased on Perspective N Point which presumes the intrinsic matrix to be already known. Thegoal is to find each camera’s pose by identifying the marker corners in pixel coordinates aswell as in world coordinates. Our tests show a worst-case error of 21.5 cm and a potential forcentimetre accuracy. It also verifies validity by testing the obtained pose estimation live in thecamera system. The paper concludes that the method has potential for higher accuracy notobtained in our experiment due to several factors. Further work would focus on enlarging themarkers and widening the distance between the markers.

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22

Frahm, Jan M. [Verfasser]. "Camera Self-Calibration with Known Camera Orientation / Jan M Frahm". Aachen : Shaker, 2005. http://d-nb.info/1186580186/34.

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23

Risberg, Robert. "Camera System Design". Thesis, Linköping University, Department of Electrical Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2028.

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Devices have become increasingly more interconnected to their surroundings over the last few years. The introduction of Bluetooth is likely to further accelerate this trend. With Bluetooth's bandwidth and expected low price, many devices will likely be fitted with Bluetooth chips and thus enable more devices to exchange data.

This master thesis aims at connecting a Personal Digital Assistant to an ARM Thumb microcontroller over Bluetooth. To the ARM Thumb shall an image capturing device be interfaced and the captured images shall be sent over Bluetooth to the Personal Digital Assistant which shall display them.

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24

Zhang, Guoqiang. "Camera network calibration". Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B37011844.

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Zhang, Guoqiang y 張國強. "Camera network calibration". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B37011844.

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O'Kennedy, Brian James. "Stereo camera calibration". Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/53063.

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Thesis (MScEng)--Stellenbosch University, 2002.
ENGLISH ABSTRACT: We present all the components needed for a fully-fledged stereo vision system, ranging from object detection through camera calibration to depth perception. We propose an efficient, automatic and practical method to calibrate cameras for use in 3D machine vision metrology. We develop an automated stereo calibration system that only requires a series of views of a manufactured calibration object in unknown positions. The system is tested against real and synthetic data, and we investigate the robustness of the proposed method compared to standard calibration practice. All the aspects of 3D stereo reconstruction is dealt with and we present the necessary algorithms to perform epipolar rectification on images as well as solving the correspondence and triangulation problems. It was found that the system performs well even in the presence of noise, and calibration is easy and requires no specialist knowledge.
AFRIKAANSE OPSOMMING: Ons beskryf al die komponente van 'n omvattende stereo visie sisteem. Die kern van die sisteem is 'n effektiewe, ge-outomatiseerde en praktiese metode om kameras te kalibreer vir gebruik in 3D rekenaarvisie. Ons ontwikkel 'n outomatiese, stereo kamerakalibrasie sisteem wat slegs 'n reeks beelde van 'n kalibrasie voorwerp in onbekende posisies vereis. Die sisteem word getoets met reële en sintetiese data, en ons vergelyk die robuustheid van die metode met die standaard algoritmes. Al die aspekte van die 3D stereo rekonstruksie word behandel en ons beskryf die nodige algoritmes om epipolêre rektifikasie op beelde te doen sowel as metodes om die korrespondensie- en diepte probleme op te los. Ons wys dat die sisteem goeie resultate lewer in die aanwesigheid van ruis en dat kamerakalibrasie outomaties kan geskied sonder dat enige spesialis kennis benodig word.

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27

Kulbaba, Brian. "WITHOUT A CAMERA". Master's thesis, University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4046.

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The method for creating my art is a matter of experimental process, manipulation of photographic elements, and time spent. I am a photographer in a digital age that does not use a camera. My moment of creativity occurs without the snap of a shutter, but relies on my understanding and control of the chemical components of photography. My work deconstructs the notion of duplication commonly found in photography. The procedure can be repeated but the results are variable. The process of creating my work often results in a multitude of prints, but the pieces that I select as art capture a number of instinctive characteristics which convey an emotion or message to me. When I present my photographs I offer the viewer an experience--an opportunity to see the work through my mind's eye as it makes sense to me. It is within this open dialogue that the work is complete: part process, part intuitive participation.
M.F.A.
Department of Art
Arts and Humanities
Studio Art and the Computer MFA

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28

Barlas, Kaya. "The contemporary camera". Master's thesis, Akademie múzických umění v Praze.Filmová a televizní fakulta. Knihovna, 2015. http://www.nusl.cz/ntk/nusl-202921.

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Sun, Jiazhen. "Canon Camera Museum". Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/64805.

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This thesis is a study of creating the first-ever camera museum by using unique building forms and structural elements, as well as water and light features. Additionally, throughout this thesis project, I would like to celebrate the Canon franchise with all the camera enthusiasts and express my personal appreciation to Canon camera who has always been a companion in my entire architecture journey. The building site, shape and location allow a discovery of the building elements and shape consequently while participating in the building visit. From far beyond, the building can be seen as a simple sculpture piece as an iconic gateway of this Canon Park. While approaching and pursuing the passage into the museum, building shape and components start to build the experience more than just a museum. Different lighting conditions, vertical and horizontal circulation methods, building form and structure are used to direct not only the journey of Canon camera, but also an experiment of my own architectural language.
Master of Architecture

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30

Hjelm, Emil y Robert Yousif. "Camera Surveillance Quadrotor". Thesis, KTH, Maskinkonstruktion (Inst.), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-184491.

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A quadrotor is a helicopter with four rotors placed at equal distance from the crafts centre of gravity, controlled by letting the different rotors generate different amount of thrust. It uses various sensors to stay stable in the air, correct readings from these sensors are therefore critical. By reducing vibrations, electromagnetic interference and external disturbances the quadrotor’s stability can increase. The purpose of this project is to analyse the feasibility of a quadrotor camera surveillance system by optimizing the handling of vibrations, video signal and external disturbances for a quadrotor. The quadrotor will be flown through first person view and should be able to hover at 10 meters altitude in a radius of 3 meters. Only sensor readings will be optimized, not data processing. The flight controller used will be a MultiWii Pro which has an accelerometer, a gyroscope, a magnetometer, a GPS and a barometer. By balancing motors and applying vibration dampening material between the motors and the frame vibrations were reduced by 73 %. Electromagnetic interference to the magnetometer was made negligible when the magnetometer had a distance of 3 cm from the power circuit. Video signal was improved by applying a LC-filter. Isolating the barometer improved calculations for the altitude. The quadrotor’s position could be locked within a radius of 4 meters and its altitude could be locked in an interval of 2 meters. The quadrotor cannot be considered stable enough for automatic camera surveillance, however with software improvement it could be.
En quadrotor är en helikopter med fyra rotorer placerade på lika avstånd från farkostens masscentrum, kontrollerad genom att låta de olika rotorerna generera olika mycket lyftkraft. Den använder sig av flera olika sensorer för att hålla sig stabil i luften, korrekt avläsning från sensorerna är därför kritiskt. Genom att reducera vibrationer, elektromagnetisk störning och externa störningar kan quadrotorns stabilitet öka. Syftet med detta projekt är att analysera möjligheten för ett quadrotorkameraövervakningssystem genom att optimera vibrationer, videosignal och externa störningar för en quadrotor. Quadrotorn ska styras genom FPV (First Person View) och kunna hovra på 10 meters höjd inom en radie av 3 meter. Endast sensorläsning kommer att optimeras, inte hantering av data. Microcontrollern som används är MultiWii Pro som har en accelerometer, ett gyroskop, en magnetometer, en GPS och en barometer. Genom att balansera motorer och lägga på vibrationsdämpande material mellan motorer och ram kunde vibrationerna minskas med 73 %. Elektromagnetisk störning på magnetometern gjordes försumbar med ett avstånd på 3 cm från kretskortet. Videosignal förbättrades genom att filtrera strömtillförseln till kamerasystemet med ett LC-filter. Isolering av barometern gjorde att höjdberäkningarna förbättrades. Quadrotorns position kunde låsas inom en radie på 4 meter och dess höjd kunde låsas inom ett intervall på 2 meter. Quadrotorn kan inte anses vara tillräckligt stabil för automatisk kameraövervakning, men med förbättring på mjukvaran skulle den kunna bli det.

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31

Dimatos, Anna Maria Massad. "Condições de saúde e trabalho de violinistas da Camerata Florianópolis". Florianópolis, SC, 2007. http://repositorio.ufsc.br/xmlui/handle/123456789/90464.

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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.
Made available in DSpace on 2012-10-23T10:59:54Z (GMT). No. of bitstreams: 1 252346.pdf: 1636308 bytes, checksum: 7eee66d10cf51b6e1627f1e7f62ed4d0 (MD5)
O objetivo deste estudo foi caracterizar as condições de trabalho e da saúde ocupacional de onze violinistas (primeiros e segundos violinos) de uma orquestra de câmara - a Camerata Florianópolis. O violino, por ser um instrumento musical assimétrico, com a utilização das mãos de maneira diferente acarreta com o decorrer da atividade laboral, posições repetitivas e forçadas, distribuição inadequada do peso no corpo, problemas de saúde ocupacional, o que prejudica a qualidade de vida do músico. Em primeiro lugar, foi realizada a observação do trabalho dos instrumentistas em diversos ensaios e espetáculos, sendo utilizado o diário de campo. Também foram analisados, por meio do inventário de bem-estar, os sintomas fisiológicos e psicológicos assinalados pelos músicos, bem como o diagrama de investigação de desconforto corporal em que os violinistas marcaram as regiões do corpo que apresentaram sintomas de dor e mal-estar. Esses instrumentos foram aplicados, individualmente, nos intervalos dos horários de trabalho dos músicos. Além disso, foi efetuada a análise cinemática dos movimentos de duas violinistas tocando os instrumentos, em situação de laboratório. Os resultados obtidos, através do inventário de bem-estar, demonstraram que os profissionais experimentaram sentimento de cansaço mental, distúrbios gastrintestinais, estado de aceleração contínua e, também, possuem pouco tempo para si mesmo. Com a análise dos dados do diagrama de investigação de desconforto corporal foi verificada que as regiões cervical, torácica, pélvica/quadril, ombro esquerdo, mão esquerda e antebraço direito apresentaram sintomas de doenças. Por intermédio da análise cinemática dos movimentos foi observada uma alta exigência biomecânica ocasionando, com o passar do tempo, distúrbios na saúde dos violinistas. Desta forma, ficou comprovada a importância da prevenção e tratamento de doenças ocupacionais em violinistas, visando a uma melhor e mais adequada adaptação do trabalho ao ser humano, bem como ao incremento da qualidade de vida dos músicos.

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32

Antonik, M. L. "The dark energy camera's optical corrector". Thesis, University College London (University of London), 2012. http://discovery.ucl.ac.uk/1344171/.

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This thesis details the design, construction and alignment of the Dark Energy Survey's optical corrector. The Dark Energy Camera (DECam) is a new wide-field corrector with a 2.2 square degree field of view and five filters covering the visible wavelengths. It has been commissioned as an upgrade for the Blanco telescope at the Cerro Tololo Inter-American Observatory in Chile. The initial discussion in this thesis centres on the verification of the compression modulus of the rubber used in the opto-mechanical design. Experimental results are compared against the theoretical models used in the design of the optical corrector. This leads into the techniques created to ensure the identical reproduction of these rubber pads. The testing of the chemical composition of the cell material is then explored along with its thermal expansion properties in order to determine compliance with the specifications. The discussion on the design of DECam is completed with the metrology of the cells and the mapping of the variations from at and the non-circularity on the alignment surfaces. The thesis then extends to the alignment of the lenses (both prototype and DECam) within their cells and the tolerances to which they are held. Finally the effect of misalignment of the lenses on the weak lensing signal was investigated. Each lens was considered individually and then random misalignments were used to look at multiple lens misalignments. A quantitative system was used to determine the relative importance of the lenses for ensuring the best possible optical performance from the perspective of the weak lensing community.

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33

Wadell, Elwood Talmadge. "An analysis of camera calibration for voxel coloring". Lexington, Ky. : [University of Kentucky Libraries], 2002. http://lib.uky.edu/ETD/ukycosc2002t00068/ETThesis.pdf.

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Thesis (M.S.)--University of Kentucky, 2002.
Title from document title page. Document formatted into pages; contains vi, 45 p. : ill. Includes abstract. Includes bibliographical references (p. 40-44).

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34

Solli, Martin. "Filter characterization in digital cameras". Thesis, Linköping University, Department of Science and Technology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2667.

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The use of spectrophotometers for color measurements on printed substrates is widely spread among paper producers as well as within the printing industry. Spectrophotometer measurements are precise, but time-consuming procedures and faster methods are desirable. Previously presented work on color calibration of flatbed scanners has shown that they can be used for fast color measurements with acceptable results. Furthermore, the rapid development of digital cameras has made it possible to transfer the methods to a camera-based system, and in this work a moderately priced consumer digital camera is used for color measurements.

Earlier presented methods for color calibration have been implemented in the camera-based system and new modifications that can improve their performance are proposed. Moreover, if the spectral sensitivities of the color filters in the camera sensor can be characterized, this can further improve the performance of the color measurements. Two methods for characterization of the color filters are presented in this work together with methods that use the camera characteristics for color measurements.

The findings of this work show that a consumer digital camera can be used as a fast and inexpensive alternative to spectrophotometers for color measurements on printed substrates.

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35

Holmberg, Hans. "Iris recognition using standard cameras". Thesis, Linköping University, Department of Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-8675.

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This master thesis evaluates the use of off-the-shelf standard cameras for biometric identification of the human iris. As demands on secure identification are constantly rising and as the human iris provides with a pattern that is excellent for identification, the use of inexpensive equipment could help iris recognition become a new standard in security systems. To test the performance of such a system a review of the current state of the research in the area was done and the most promising methods were chosen for evaluation. A test environment based on open source code was constructed to measure the performance of iris recognition methods, image quality and recognition rate.

In this paper the image quality of a database consisting of images from a standard camera is assessed, the most important problem areas identified, and the overall recognition performance measured. Iris recognition methods found in literature are tested on this class of images. These together with newly developed methods show that a system using standard equipment can be constructed. Tests show that the performance of such a system is promising.

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Blanksby, Andrew J. "Colour cameras in standard CMOS /". Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phb6419.pdf.

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Salahieh, Basel. "Computational Imaging For Miniature Cameras". Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/581305.

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Miniature cameras play a key role in numerous imaging applications ranging from endoscopy and metrology inspection devices to smartphones and head-mount acquisition systems. However, due to the physical constraints, the imaging conditions, and the low quality of small optics, their imaging capabilities are limited in terms of the delivered resolution, the acquired depth of field, and the captured dynamic range. Computational imaging jointly addresses the imaging system and the reconstructing algorithms to bypass the traditional limits of optical systems and deliver better restorations for various applications. The scene is encoded into a set of efficient measurements which could then be computationally decoded to output a richer estimate of the scene as compared with the raw images captured by conventional imagers. In this dissertation, three task-based computational imaging techniques are developed to make low-quality miniature cameras capable of delivering realistic high-resolution reconstructions, providing full-focus imaging, and acquiring depth information for high dynamic range objects. For the superresolution task, a non-regularized direct superresolution algorithm is developed to achieve realistic restorations without being penalized by improper assumptions (e.g., optimizers, priors, and regularizers) made in the inverse problem. An adaptive frequency-based filtering scheme is introduced to upper bound the reconstruction errors while still producing more fine details as compared with previous methods under realistic imaging conditions. For the full-focus imaging task, a computational depth-based deconvolution technique is proposed to bring a scene captured by an ordinary fixed-focus camera to a full-focus based on a depth-variant point spread function prior. The ringing artifacts are suppressed on three levels: block tiling to eliminate boundary artifacts, adaptive reference maps to reduce ringing initiated by sharp edges, and block-wise deconvolution or depth-based masking to suppress artifacts initiated by neighboring depth-transition surfaces. Finally for the depth acquisition task, a multi-polarization fringe projection imaging technique is introduced to eliminate saturated points and enhance the fringe contrast by selecting the proper polarized channel measurements. The developed technique can be easily extended to include measurements captured under different exposure times to obtain more accurate shape rendering for very high dynamic range objects.

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38

Dahlström, Erik. "Super-Resolution Using Dynamic Cameras". Thesis, Linköpings universitet, Datorseende, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-167333.

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In digital image correlation, an optical full-ﬁeld analysis method that can determine displacements of an object under load, high-resolution images are preferable. One way to improve the resolution is to improve the camera hardware. This can be expensive, hence another way to enhance the image is by various image processing techniques increase the resolution of the image. There are several ways of doing this and these techniques are called super-resolution. In this thesisthe theory behind several diﬀerent approaches to super-resolution is presented and discussed. The goal of this Thesis has been to investigate if super-resolutionis possible in a scene with moving objects as well as movement of the camera. It became clear early on that image registration, a step in many super-resolution methods that will be explained in this thesis, was of utmost importance, and a major part of the work became comparing image registration methods. Data has been recorded and then two diﬀerent super-resolution algorithms have been evaluated on a data set showing that super-resolution is possible.

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39

Shin, Sung Woong. "Rigorous Model of Panoramic Cameras". The Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=osu1048869881.

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40

Sillén, Erik. "Robustifying SLAM using multiple cameras". Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-191247.

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This master thesis is about modifying a certain monocular visual SLAM algorithm to address some of its limitations. The SLAM algorithm is not robust to quick camera motions and input images in which there are few visible features. A second camera and an inertial measurement unit was added to the hardware. Then a method for selecting the appropriate camera for tracking depending on the estimated number of features was implemented to solve the issue of few features. Experiments and results show that this method works well for slow motions. A gyrometer threshold method along with a motion model to solve the issue of quick motions was implemented and reviewed in this thesis.
Detta examensarbete handlar om att ta itu med några begränsningar som en viss monokulär visuell SLAM-algoritm har. SLAM-algoritmen är inte robust mot snabba kamerarörelser och indatabilder som innehåller få karaktärsdrag. Genom att introducera en extra kamera, en accelerometer och en gyrometer, behandlas dessa problem i denna rapport. En metod för att välja kamera att hämta indatabilder från, baserat på det skattade antalet karaktärsdrag i respektive bild implementerades. Denna metod är tänkt att lösa problemet då indatabilder har få karaktärsdrag. Experiment visar att denna metod fungerar bra för långsamma rörelser. En metod som jämför gyrometerdata med ett tröskelvärde tillsammans med en rörelsemodell implementerades för att lösa problemen vid snabb rörelse. Dessa metoder undersöks och diskuteras i rapporten.

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41

Smith, Jeffrey Statler. "Multi-camera: interactive rendering of abstract digital images". Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/341.

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The purpose of this thesis is the development of an interactive computer-generated rendering system that provides artists with the ability to create abstract paintings simply and intuitively. This system allows the user to distort a computer-generated environment using image manipulation techniques that are derived from fundamentals of expressionistic art. The primary method by which these images will be abstracted stems from the idea of several small images assembled into a collage that represents multiple viewing points rendered simultaneously. This idea has its roots in the multiple-perspective and collage techniques used by many cubist and futurist artists of the early twentieth century.

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42

Balli, Gulsum Basak. "Micro-satellite Camera Design". Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1043769/index.pdf.

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The aim of this thesis has been summarized as the design of a micro-satellite camera system and its focal plane simulations. The average micro-satellite orbit heights ranges in between 600-850 km and obviously a multipayload satellite brings volume and power restrictions for each payload. In this work, an orbit height of 600 km and a volume of 20×
20×
30 cm is assumed, since minimizing the payload dimensions increases the probability of the launch. The pixel size and the dimensions of an imaging detector such as charge-coupled device (CCD) have been defined by the useful image area with acceptable aberration limits on the focal plane. In order to predict the minimum pixel size to be used at the focal plane modulation transfer function (MTF), point spread function (PSF), image distortion and aberration simulations have been carried out and detector parameters for the designed camera have been presented.

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43

Tang, Zhongwei. "High precision camera calibration". Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2011. http://tel.archives-ouvertes.fr/tel-00675484.

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The thesis focuses on precision aspects of 3D reconstruction with a particular emphasis on camera distortion correction. The causes of imprecisions in stereoscopy can be found at any step of the chain. The imprecision caused in a certain step will make useless the precision gained in the previous steps, then be propagated, amplified or mixed with errors in the following steps, finally leading to an imprecise 3D reconstruction. It seems impossible to directly improve the overall precision of a reconstruction chain leading to final imprecise 3D data. The appropriate approach to obtain a precise 3D model is to study the precision of every component. A maximal attention is paid to the camera calibration for three reasons. First, it is often the first component in the chain. Second, it is by itself already a complicated system containing many unknown parameters. Third, the intrinsic parameters of a camera only need to be calibrated once, depending on the camera configuration (and at constant temperature). The camera calibration problem is supposed to have been solved since years. Nevertheless, calibration methods and models that were valid for past precision requirements are becoming unsatisfying for new digital cameras permitting a higher precision. In our experiments, we regularly observed that current global camera methods can leave behind a residual distortion error as big as one pixel, which can lead to distorted reconstructed scenes. We propose two methods in the thesis to correct the distortion with a far higher precision. With an objective evaluation tool, it will be shown that the finally achievable correction precision is about 0.02 pixels. This value measures the average deviation of an observed straight line crossing the image domain from its perfectly straight regression line. High precision is also needed or desired for other image processing tasks crucial in 3D, like image registration. In contrast to the advance in the invariance of feature detectors, the matching precision has not been studied carefully. We analyze the SIFT method (Scale-invariant feature transform) and evaluate its matching precision. It will be shown that by some simple modifications in the SIFT scale space, the matching precision can be improved to be about 0.05 pixels on synthetic tests. A more realistic algorithm is also proposed to increase the registration precision for two real images when it is assumed that their transformation is locally smooth. A multiple-image denoising method, called ''burst denoising'', is proposed to take advantage of precise image registration to estimate and remove the noise at the same time. This method produces an accurate noise curve, which can be used to guide the denoising by the simple averaging and classic block matching method. ''burst denoising'' is particularly powerful to recover fine non-periodic textured part in images, even compared to the best state of the art denoising method.

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44

Rosander, Peter. "Camera Based Terrain Navigation". Thesis, Linköping University, Linköping University, Automatic Control, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-16953.

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The standard way for both ground and aerial vehicles to navigate is to use anInertial Navigation System, INS, containing an Inertial Measurement Unit, IMU,measuring the acceleration and angular rate, and a GPS measuring the position.The IMU provides high dynamic measurements of the acceleration and the angularrate, which the INS integrates to velocity, position and attitude, respectively.While being completely impossible to jam, the dead-reckoned estimates will driftaway, i.e., the errors are unbounded. In conjunction with a GPS, providing lowdynamic updates with bounded errors, a highly dynamic system without any driftis attained. The weakness of this system is its integrity, since the GPS is easilyjammed with simple equipment and powered only by a small standard battery.When the GPS is jammed this system falls back into the behavior of the INS withunbounded errors. To counter this integrity problem a camera can be used aseither a back up to the GPS or as its replacement. The camera provides imageswhich are then matched versus a reference, e.g., a map or an aerial photo, to getsimilar estimates as the GPS would provide. The camera can of course also bejammed by blocking the view of the camera with smoke. Bad visibility can alsooccur due to bad weather, but a camera based navigation system will definitelybe more robust than one using GPS.This thesis presents two ways to fuse the measurements from the camera and theIMU, both of them utilizing the Harris corner detector to find point correspondencesbetween the camera image and an aerial photo. The systems are evaluatedby simulated data mimicking both a low and a high accuracy IMU and a camerataking snapshots of the aerial photo. Results show that for the simulated cameraimages the implemented corner detector works fine and that the overall result iscomparable to using a GPS.

Standardsättet för både flygande och markgående fordon att navigera är att användaett tröghetsnavigeringssystem, innehållande en IMU som mäter acceleration ochvinkelhastighet, tillsammans med GPS. IMU:n tillhandahåller högfrekventa mätningarav acceleration och vinkelhastighet som integreras till hastighet, positionoch attityd. Ett sådant system är omöjligt att störa, men lider av att de dödräknadestorheterna hastighet, position och attityd, med tiden, kommer att driva ivägifrån de sanna värdena. Tillsammans med GPS, som ger lågfrekventa mätningarav positionen, erhålls ett system med god dynamik och utan drift. Svagheten i ettvvisådant system är dess integritet, då GPS enkelt kan störas med enkel och billigutrustning. För att lösa integritetsproblemet kan en kamera användas, antingensom stöd eller som ersättare till GPS. Kameran tar bilder som matchas gentemoten referens ex. en karta eller ett ortofoto. Det ger liknande mätningar som de GPSger. Ett kamerabaserat system kan visserligen också störas genom att blockerasynfältet för kameran med exempelvis rök. Dålig sikt kan också uppkomma pågrund av dåligt väder eller dimma, men ett kamerabaserat system kommer definitivtatt vara robustare än ett som använder GPS.Det här examensarbetet presenterar två sätt att fusionera mätningar från etttröghetssystem och en kamera. Gemensamt för båda är att en hörndetektor, Harriscorner detector, används för att hitta korresponderande punkter mellan kamerabildernaoch ett ortofoto. Systemen utvärderas på simulerat data. Resultatenvisar att för simulerade data så fungerar den implementerade hörndetektorn ochatt prestanda i nivå med ett GPS-baserat system uppnås.

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45

Zhang, Hui. "Camera calibration from silhouettes". Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B37743752.

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46

Young, Alexander James, Casse Brian J. La, Patrick M. Kain, Setareh Madhoush y Peter J. Pflibsen. "Uncooled Thermal Infrared Camera". Thesis, The University of Arizona, 2011. http://hdl.handle.net/10150/145107.

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47

DeHoog, Edward Allen. "Novel Fundus Camera Design". Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/195633.

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A fundus camera a complex optical system that makes use of the principle of reflex free indirect ophthalmoscopy to image the retina. Despite being in existence as early as 1900's, little has changed in the design of a fundus camera and there is minimal information about the design principles utilized. Parameters and specifications involved in the design of fundus camera are determined and their affect on system performance are discussed. Fundus cameras incorporating different design methods are modeled and a performance evaluation based on design parameters is used to determine the effectiveness of each design strategy. By determining the design principles involved in the fundus camera, new cameras can be designed to include specific imaging modalities such as optical coherence tomography, imaging spectroscopy and imaging polarimetry to gather additional information about properties and structure of the retina. Design principles utilized to incorporate such modalities into fundus camera systems are discussed. Design, implementation and testing of a snapshot polarimeter fundus camera are demonstrated.

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48

Henderson, Graham Barry. "The intelligent camera system". Thesis, Lancaster University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239905.

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49

Zhang, Hui y 張慧. "Camera calibration from silhouettes". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B37743752.

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50

Dmochowski, Przemyslaw. "CMOS modulated light camera". Thesis, University of Nottingham, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.438301.

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