Дисертації з теми "Digital Human Models (DHM)"
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Kronfeld, Thomas, and Guido Brunnett. "Simulation komplexer Arbeitsabläufe im Bereich der digitalen Fabrik." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-223856.
Повний текст джерелаRamos, Mayara. "Testes de usabilidade para idosos : aplicação de Digital Human Modeling (DHM) em softwares CAD/CAE." Universidade do Estado de Santa Catarina, 2014. http://tede.udesc.br/handle/handle/2020.
Повний текст джерелаCoordenação de Aperfeiçoamento de Pessoal de Nível Superior
The present research presents the problem related to the aging population of the world and the necessary improvement on product development to better serve these users considering their limitations that come with the aging process; one of the possible improvements is the inclusion of these user on usability testing. This inclusion can be made with low cost and without exposing the user through virtual testing, which is where the problem of this research focuses, if is possible to to perform these usability tests entirely in SolidWorks® platform. The objective of this research is to develop a procedure for virtual usability testing in SolidWorks® software, with focus on elderly users. To achive the corroboration of the hypothesis (is possible to do virtual usability testing through the software plataform), was reproduced the traditional usability test of a remote control conducted with elder users in a virtual usability test on the SolidWorks® plataform, the modeled user presented limitations based on the users participants of the traditional testing, enabling the comparison of the found results of the tests. On the usability tests were evaluated the performance metrics of task success and number of positioning of the remote control were necessary to complete the task. By the test results we were able to realize that the variable of number of positions necessary to complete the task is more appropriate to evaluate the similarity between the results of real and virtual tests. The result of the statistic test for this metric indicated that there are significant differences between the results of the traditional test and the results of the virtual test, but when evaluated only the results of females elders the results showed no significant differences. It was concluded that further research is necessary to achieve corroboration of the hypothesis, considering that the results indicated significant differences between the results. The fact that the group of female older users have shown similar results, indicating that with improvements in usability testing procedure in SolidWorks® platform can achieve similar results for older users of both genders.
O presente trabalho apresenta problemática relacionada ao cenário mundial do envelhecimento da população e as melhorias necessárias no desenvolvimento dos produtos para melhor atender esses usuários considerando as limitações que são desenvolvidas no envelhecimento; uma dessas melhorias é a inclusão desse usuário nos testes de usabilidade. Essa inclusão pode ser feita com custo baixo e sem expor o usuário por meio de testes virtuais, que é onde se apresenta o problema dessa pesquisa: se é possível realizar esses testes de usabilidade inteiramente na plataforma do SolidWorks®? O objetivo desta pesquisa é desenvolver um procedimento para testes de usabilidade virtuais realizados no software SolidWorks®, com foco nos usuários idosos. Para procurar a corroboração da hipótese (de que seria possível realizar testes de usabilidade digitalmente nesta plataforma), foi reproduzido o teste de usabilidade tradicional de um controle remoto realizado com usuários idosos em um teste de usabilidade virtual na plataforma do SolidWorks®, em que o usuário modelado apresentou limitações baseadas nas dos usuários participantes do teste tradicional, podendo assim, comparar os resultados encontrados nos testes. No teste de usabilidade foram avaliadas as medidas de desempenho, sucesso de realização da tarefa e número de reposicionamentos do controle remoto necessários para realizar a tarefa. Pelos resultados dos testes pode se perceber que a variável de número de reposicionamentos para realizar a tarefa é a mais adequada para avaliar a similaridade entre os resultados dos testes real e virtual. O resultado do teste estatístico dessa variável indicou que existem diferenças significativas entre os resultados encontrados do teste tradicional e os resultados do teste virtual, mas quando avaliado apenas os resultados dos indivíduos idosos do sexo feminino os resultados não apresentaram diferenças significativas. Foi concluído que ainda são necessárias pesquisas para se atingir a corroboração da hipótese, considerando que os resultados indicaram para diferenças significativas entre os resultados. O fato do grupo de usuárias idosas ter apresentado resultados similares, indica que com melhorias no procedimento de testes de usabilidade na plataforma do SolidWorks® pode-se conseguir resultados similares para usuários de idosos de ambos os gêneros.
Garay, Beñat. "High-level language design for IMMA-Virtual Driver DHM Research." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-11236.
Повний текст джерелаVirtual Driver
OLIVEIRA, JOSE LUIS AMARAL DE CARVALHO DE. "DIGITAL HUMAN MODELS: CONCEPT, APPLICABILITY AND TECHNOLOGIES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2013. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=23898@1.
Повний текст джерелаA presente pesquisa tem como objetivo explorar as diferentes possibilidades de aplicação de Digital Human Models em projetos para as áreas do Design, Arquitetura, Arte e Engenharia. A partir da construção de um panorama temporal das culturas antigas, com a redescoberta de valores o período do Renascimento e culminando na Revolução Industrial, seguindo com o fator humano sendo agregado aos requisitos de projeto na Revolução Industrial. Do contexto histórico da curiosidade humana por replicar sua imagem até a implementação da representação da forma humana como parâmetro projetual para o setor produtivo. Espera-se com a pesquisa um melhor entendimento dos Digital Human Models como ferramenta para o desenvolvimento de projetos, sua aplicabilidade e perspectivas futuras, possibilitando assim a consequente disseminação de seu uso e maior acessibilidade ao usuário final, bem como um mapeamento das etapas e tecnologias de criação dos modelos.
The present research intends to explore the different possibilities on the application of Digital Human Models on projects for Design, Architecture, Arts and Engineering. Building a panorama over the time starting on ancient cultures, rediscovering values from the antiquity on the period of Renascence, and culminating on the Industrial Revolution, following with the human factor been adopted as a project requirement during the Industrial Revolution. From a historical panorama of the human curiosity for replicating its own image until the implementation of human representation as project parameters into the productive sector. The main goal of this research is to obtain a better understanding of Digital Human Models as a tool to be used on projects development, its applicability and future perspectives, allowing with it a consequent dissemination of its use and a bigger accessibility to the final user, as well as a mapping of the stages and technologies on creating those models.
Romera, Orengo Javier. "Analysis of vehicle ergonomics using a driving test routine in the DHM tool IPS IMMA." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-19055.
Повний текст джерелаGonzalez, Alvaro J. "Alpha stable human visual system models for digital halftoning." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 58 p, 2007. http://proquest.umi.com/pqdweb?did=1251904881&sid=3&Fmt=2&clientId=8331&RQT=309&VName=PQD.
Повний текст джерелаGünzkofer, Fabian [Verfasser]. "Elbow Strength Modelling for Digital Human Models / Fabian Günzkofer." München : Verlag Dr. Hut, 2013. http://d-nb.info/1045988197/34.
Повний текст джерелаLima, Antonio. "Digital traces of human mobility and interaction : models and applications." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/6833/.
Повний текст джерелаKronfeld, Thomas, and Guido Brunnett. "Simulation komplexer Arbeitsabläufe im Bereich der digitalen Fabrik." Technische Universität Dresden, 2016. https://tud.qucosa.de/id/qucosa%3A30296.
Повний текст джерелаOh, Joonmi. "Human visual system informed perceptual quality assessment models for compressed medical images." Thesis, University of Birmingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368425.
Повний текст джерелаDessolin, Samuel. "Membrane models for a controllable surface." Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/17527.
Повний текст джерелаShang, Lifeng, and 尚利峰. "Facial expression analysis with graphical models." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B47849484.
Повний текст джерелаpublished_or_final_version
Computer Science
Doctoral
Doctor of Philosophy
Nyström, Sandra. "Användning av digitala tekniker för att utvärdera fysisk ergonomi : Användandet av IPS IMMA för analys samt förbättring av monteringslinjers ergonomi." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-20022.
Повний текст джерелаCASTELLONE, RAFFAELE. "Generazione di manichini virtuali da dati antropometrici ed applicazioni con strumenti di modellazione umana virtuale." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2708894.
Повний текст джерелаDu, Jinyan. "The development of a methodology for assessing industrial workstations using computer-aided ergonomics and digital human models." MSSTATE, 2005. http://sun.library.msstate.edu/ETD-db/theses/available/etd-07222005-105440/.
Повний текст джерелаAzamfirei, Victor. "A visualization approach for improved interpretation and evaluation of assembly line balancing solutions." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-16249.
Повний текст джерелаAranda, Avila Fermin, and Hernández-Carrillo José María González. "Strategy to assess workstation ergonomics using virtual models of production." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-20207.
Повний текст джерелаTavares, Tiago Fernandes 1984. "Computational models for rhythm and applications on human-machine interactions = Modelos computacionais para o ritmo e aplicações em interatividade homem-máquina." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261121.
Повний текст джерелаTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação
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Resumo: Esta tese descreve investigações sobre a aplicação de modelos computacionais para o ritmo na interatividade homem-computador. São propostos um modelo para transcrição musical semi-automática, um modelo para transcrição automática e duas interfaces para expressão musical, todos baseados em conceitos ligados a ritmo. Este estudo, inédito, evidencia a importância do uso de conhecimentos especialistas em sistemas de recuperação de informações musicais, uma vez que são possibilitados não somente sistemas mais eficazes como também novas maneiras de interagir musicalmente com o computador
Abstract: This thesis describes investigations towards the use of computational models for rhythm in the context of human-machine interactions. I propose a model for semiautomatic musical transcription, a model for automatic musical transcription and two interfaces for musical expression, all of them based in concepts related to rhythm. This novel study highlights the importance of using domain-specic knowledge in music information retrieval systems, as it allows not only more accurate systems to be built, but also the development of new ways of musically interacting with computers
Doutorado
Engenharia de Computação
Doutor em Engenharia Elétrica
Hilbelink, Amy JoAnne. "The effectiveness and user perception of 3-dimensional digital human anatomy in an online undergraduate anatomy laboratory." [Tampa, Fla] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0001876.
Повний текст джерелаSchönherr, Ricardo. "Simulationsbasierte Absicherung der Ergonomie mit Hilfe digital beschriebener menschlicher Bewegungen." Doctoral thesis, Universitätsbibliothek Chemnitz, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-132991.
Повний текст джерелаDigital Human Models are said to be appropriate tools for planning and assessing human work; especially for preventive ergonomics risk assessment. Up to now, the functional range of established software tools is not sufficient and the operation is too complex and time consuming. Thus, in the present doctoral thesis, the development of a method for the preparation of digitally captured human motions for an algorithmic motion generation and automatic ergonomic risk assessment is described. On the summarization of the relevant current level of knowledge follows the description of two empirical studies for motion capturing and analysis. Afterwards the implementation of a method of the ergonomics risk assessment that combines several biomechanical risk factors is explained. The results of the preliminary studies flow into the development of a new software tool for planning and assessing human work – the editor for manual work activities (ema). Finally, the practical evaluation with the help of real planning scenarios is presented
FONTANA, Federico. "Physics-based models for the acoustic representation of space in virtual environments." Doctoral thesis, Università degli Studi di Verona, 2003. http://hdl.handle.net/11562/342240.
Повний текст джерелаThis work deals with the simulation of virtual acoustic spaces using physics-based models. The acoustic space is what we perceive about space using our auditory system. The physical nature of the models means that they will present spatial attributes (such as, for example, shape and size) as a salient feature of their structure, in a way that space will be directly represented and manipulated by means of them.
Angulo, Julio. "Designing for Usable Privacy and Transparency in Digital Transactions." Doctoral thesis, Karlstads universitet, Centrum för HumanIT, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-35921.
Повний текст джерелаPeople engage with multiple online services and carry out a range of different digital transactions with these services. Registering an account, sharing content in social networks, or requesting products or services online are a few examples of such digital transactions. With every transaction, people take decisions and make disclosures of personal data. Despite the possible benefits of collecting data about a person or a group of people, massive collection and aggregation of personal data carries a series of privacy and security implications which can ultimately result in a threat to people's dignity, their finances, and many other aspects of their lives. For this reason, privacy and transparency enhancing technologies are being developed to help people protect their privacy and personal data online. However, some of these technologies are usually hard to understand, difficult to use, and get in the way of people's momentary goals. The objective of this thesis is to explore, and iteratively improve, the usability and user experience provided by novel privacy and transparency technologies. To this end, it compiles a series of case studies that address identified issues of usable privacy and transparency at four stages of a digital transaction, namely the information, agreement, fulfilment and after-sales stages. These studies contribute with a better understanding of the human-factors and design requirements that are necessary for creating user-friendly tools that can help people to protect their privacy and to control their personal information on the Internet.
Bauer, Sebastian. "Prozesssprachenbasiertes System zur Ansteuerung digitaler Menschmodelle als Teilkomponente einer Software zur Planung und Visualisierung menschlicher Arbeit in der Digitalen Fabrik." Doctoral thesis, Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-195199.
Повний текст джерелаFor many years the tools and methods of the Digital Factory are used in various stages of the product development process. They are also used for the planning and design of human work, which is typically done using a digital human model. Aspects of the workflow, time management and workplace design can be investigated and improved upon in the early stages of the product development process using digital human models. But in this field the development of efficient simulation systems is not matured enough compared to other fields for e.g. robot simulation. This paper starts with an analysis of existing simulation systems for digital human models. Afterwards a requirements list is created from the identified weaknesses of these systems, knowledge gained through expert interviews and literature reviews. These requirements serve as the base for the design and implementation of an innovative approach for motion generation and control of digital human models. This new methodology is then implemented as a simulation software system and evaluated in practical applications. The developed system fixed the shortcomings of existing systems and thus it is a suitable tool for efficient planning, design and evaluation of human labor
Angulo, Julio. "Usable privacy for digital transactions : Exploring the usability aspects of three privacy enhancing mechanisms." Licentiate thesis, Karlstads universitet, Avdelningen för informatik och projektledning, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-14832.
Повний текст джерелаColás, Álvarez Joaquim. "Interaction and participation in collaborative storytelling systems." Doctoral thesis, Universitat Pompeu Fabra, 2017. http://hdl.handle.net/10803/456037.
Повний текст джерелаMühlstedt, Jens, Christian Hentschel, Doreen Bartel, Isabell Grundmann, and Birgit Spanner-Ulmer. "Bewertungsmodell muskulärer dynamischer Beanspruchungen." Universitätsbibliothek Chemnitz, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-68034.
Повний текст джерелаSilva, Marcos André Duarte da. "Estimativa da estatura final utilizando os cálculos matemáticos desenvolvidos por Carrea." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/23/23153/tde-14012013-153149/.
Повний текст джерелаSometimes the process of human identification faces situations that little of the human body remains to be investigated, in these cases all identificatory methods available must be employed. The aim of this study was to obtain data to facilitate the understanding of the Carrea`s study 9 about stature as well as check the possibility of estimating final stature using the mathematical calculations developed by Carrea using two different methodologies. Stature measurement was perfomed in 46 Brazilian from Curitiba - PR aged between 22 and 37 years and divided into three groups: Group 1 consisted of 24 subjects without orthodontic treatment and with the six mandibular anterior teeth aligned, Group 2A consists of 22 subjects with crowding of the mandibular anterior teeth before orthodontic treatment and Group 2B comprised the same 22 subjects of the Group 2A, but after orthodontic treatment and with the mandibular anterior teeth aligned. The first methodology evaluated, which was called index of Carrea (1) used the mathematical formulas developed by this author in which the radius-chord and arch measurements were obtained directly from the digitalized orthodontic models. In the second method, index of Carrea (2), the arch was measured on the digitalized orthodontic models, but the radius-chord was obtained dividing the arch measurement by a numeric constant (1.0472) observed in the table of progressive proportion described by Carrea 9. Carrea index (2) was applied in all subjects of the sample without separating them in groups, since the radius-chord was calculated from the measured arch regardless of the disposition of the lowe anterior teeth. The descriptive analysis of the percentage of subjects with real stature within the range of statures estimated applying the index Carrea (1) performed as follows: Group 1 - 41.7%, Group 2A - 72.3% and Group 2B - 54.5%. The study of the size range of the statures estimated presented the following result: 18.9 cm for the Group 1, 30.6 cm for the Group 2A and 15.4 cm for the Group 2B. Using the index Carrea (2) it was found that 15.2% of the sample had their real 9 stature within the range of the statures estimated and the size of this range was 8 cm. It was concluded that the indexes of Carrea (1) and (2) have no applicability as a method to estimate the final stature. Its not confirmed at least explicitly in the studies of Carrea that was his aim to estimate the stature. It was observed that Carrea intended to calculate the final human stature proportional to the sum of mesio-distal dimensions of lower central incisor, lower lateral incisor and lower canine ipsilateral.
Amar, Meina. "Masque psychovisuel à base d’ondelettes pour le Watermarking." Thesis, Orléans, 2018. http://www.theses.fr/2018ORLE2022/document.
Повний текст джерелаWatermarking consists in inserting copyright information, or other verification messages, invisible to the human eye. Among all the possible approaches, perceptual watermarking is the most efficient. Perceptual image watermarking consists in using knowledge of the Human Visual System (HVS) to choose the strength of the watermark. In this study, we propose a new perceptual image watermarking method (JNDEM ) that combines the advantages of both the wavelet domain and the spatial domain since a mixed-scale wavelet representation is applied. By considering the density of the dominant wavelet coefficients, our scheme is able to differentiate uniform, edge and texture areas. We selected effective Just Noticeable Difference (JND) models from the literature, i.e. luminance and edge masking developed by Chou, and texture masking developed by Qi. We also took into account the HVS sensitivity which varies with the orientation of the image activity. We have compared our JNDEM to four other JND models from the literature in terms of visual quality and of robustness to attacks. Results show that the proposed method yields a high visual quality and is very robust against attacks. This last point is of great importance for real applications. In conclusion, the proposed method is the best trade-off between visual quality and resistance to attacks among the four other tested methods
Bauer, Sebastian. "Prozesssprachenbasiertes System zur Ansteuerung digitaler Menschmodelle als Teilkomponente einer Software zur Planung und Visualisierung menschlicher Arbeit in der Digitalen Fabrik." Doctoral thesis, Universitätsverlag der Technischen Universität Chemnitz, 2015. https://monarch.qucosa.de/id/qucosa%3A20388.
Повний текст джерелаFor many years the tools and methods of the Digital Factory are used in various stages of the product development process. They are also used for the planning and design of human work, which is typically done using a digital human model. Aspects of the workflow, time management and workplace design can be investigated and improved upon in the early stages of the product development process using digital human models. But in this field the development of efficient simulation systems is not matured enough compared to other fields for e.g. robot simulation. This paper starts with an analysis of existing simulation systems for digital human models. Afterwards a requirements list is created from the identified weaknesses of these systems, knowledge gained through expert interviews and literature reviews. These requirements serve as the base for the design and implementation of an innovative approach for motion generation and control of digital human models. This new methodology is then implemented as a simulation software system and evaluated in practical applications. The developed system fixed the shortcomings of existing systems and thus it is a suitable tool for efficient planning, design and evaluation of human labor.
Nérot, Agathe. "Modélisation géométrique du corps humain (externe et interne) à partir des données externes." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE1133.
Повний текст джерелаDigital human models have become instrumental tools in the analysis of posture and motion in many areas of biomechanics, including ergonomics and clinical settings. These models include a geometric representation of the body surface and an internal linkage composed of rigid segments and joints allowing simulation of human movement. The customization of human models first starts with the adjustment of external anthropometric dimensions, which are then used as input data to the adjustment of internal skeletal segments lengths. While the external data points are more readily measurable using current 3D scanning tools, the scientific challenge is to predict the characteristic points of the internal skeleton from external data only. The Institut de Biomécanique Humaine Georges Charpak (Arts et Métiers ParisTech) has developed 3D reconstruction methods of bone and external envelope from biplanar radiographs obtained from the EOS system (EOS Imaging, Paris), a low radiation dose technology. Using this technology, this work allowed proposing new external-internal statistical relationships to predict points of the longitudinal skeleton, particularly the complete set of spine joint centers, from a database of 80 subjects. The implementation of this work could improve the realism of current digital human models used for biomechanical analysis requiring information of joint center location, such as the estimation of range of motion and joint loading
Mühlstedt, Jens. "Entwicklung eines Modells dynamisch-muskulärer Arbeitsbeanspruchungen auf Basis digitaler Menschmodelle." Doctoral thesis, Universitätsbibliothek Chemnitz, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-86342.
Повний текст джерелаDigital human models for human factors are used as tools for virtual ergonomics and the design of products and workplaces. In this work the use of the systems is analysed with theoretical models and an empirical study. Therefore, disadvantages of the systems are identified. A main idea for further developments is the research on ergonomic approaches and models, especially for movements and the strain caused by movements. Digital human models are capable to assess work processes based on data from simulations. In this work a new human factors orientated rating model for muscular strains is developed and evaluated. A test stand generates and standardizes the stress. In a laboratory survey the stress parameters are analysed. The variation of the static torque part, the angular velocity and the torque direction cause changes in the muscular strains. Hence, these muscular strains are measured electromyographically. A new normalisation method, the normalized standard movement, is introduced. The survey shows the existence of a correlation of static torque part and work strain. Depending on the muscle type, the angular velocity either affects the work strain linear increasing or does not affect it
Mühlstedt, Jens. "Entwicklung eines Modells dynamisch-muskulärer Arbeitsbeanspruchungen auf Basis digitaler Menschmodelle." Doctoral thesis, Universitätsverlag der Technischen Universität Chemnitz, 2011. https://monarch.qucosa.de/id/qucosa%3A19704.
Повний текст джерелаDigital human models for human factors are used as tools for virtual ergonomics and the design of products and workplaces. In this work the use of the systems is analysed with theoretical models and an empirical study. Therefore, disadvantages of the systems are identified. A main idea for further developments is the research on ergonomic approaches and models, especially for movements and the strain caused by movements. Digital human models are capable to assess work processes based on data from simulations. In this work a new human factors orientated rating model for muscular strains is developed and evaluated. A test stand generates and standardizes the stress. In a laboratory survey the stress parameters are analysed. The variation of the static torque part, the angular velocity and the torque direction cause changes in the muscular strains. Hence, these muscular strains are measured electromyographically. A new normalisation method, the normalized standard movement, is introduced. The survey shows the existence of a correlation of static torque part and work strain. Depending on the muscle type, the angular velocity either affects the work strain linear increasing or does not affect it.
Kaiser, André. "Modellierung maximaler menschlicher Muskelmomente auf Basis digitaler Menschmodelle – am Beispiel der oberen Extremitäten." Universitätsverlag der Technischen Universität Chemnitz, 2017. https://monarch.qucosa.de/id/qucosa%3A20881.
Повний текст джерелаDigital human models as tools of virtual ergonomics serve for the design of products and workplaces. High demands for further development determine their users, for the integrated force analyzes. One way to calculate joint-angle- and force-direction-dependent static forces without complex muscle modeling is based on muscle torques, which are modeled in maximum torque bodies known as “M-Potatos”. This work describes and discusses the calculation of such maximum torque bodies for the right upper arm. Two separate studies allow the preparation and evaluation. The first study explore the maximum muscle torques within the main movement directions of the elbow and shoulder and interpolate them as polynomials of the joint angle position. With these polynomials, the maximum torque bodies can be modeled. The second study compared effective muscle torques with those predicted. The results show that the maximum torque bodies predict the effective muscle moments at maximum isometric force application on average at about 2%, with a range of about 50% to be considered. The range can be explained by a critical discussion and, among other things, attributable to the psychophysical method of a maximum force measurement.
Reddi, Sarath. "A Geometric Approach for Discrete and Statistical Reach Analysis for a DHM with Mutable Supports." Thesis, 2013. http://etd.iisc.ac.in/handle/2005/2867.
Повний текст джерелаReddi, Sarath. "A Geometric Approach for Discrete and Statistical Reach Analysis for a DHM with Mutable Supports." Thesis, 2013. http://etd.iisc.ernet.in/handle/2005/2867.
Повний текст джерелаBhatia, Nitesh. "An Integrative Approach to Vision Simulations using Digital Human Models." Thesis, 2018. https://etd.iisc.ac.in/handle/2005/4269.
Повний текст джерелаIndian Space Research Organisation (ISRO)
Vinayak, *. "A Geometric Framework For Vision Modeling In Digital Human Models Using 3D Tessellated Head Scans." Thesis, 2010. https://etd.iisc.ac.in/handle/2005/1383.
Повний текст джерелаVinayak, *. "A Geometric Framework For Vision Modeling In Digital Human Models Using 3D Tessellated Head Scans." Thesis, 2010. http://etd.iisc.ernet.in/handle/2005/1383.
Повний текст джерелаVipin, J. S. "Natural Hand Based Interaction Simulation using a Digital Hand." Thesis, 2013. http://etd.iisc.ac.in/handle/2005/3394.
Повний текст джерелаVipin, J. S. "Natural Hand Based Interaction Simulation using a Digital Hand." Thesis, 2013. http://etd.iisc.ernet.in/2005/3394.
Повний текст джерелаChang, Chao-Chin, and 張朝欽. "Development of a Motion Capture System Using Digital Video Cameras and Human Models with Global Optimization." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/31248359566164784714.
Повний текст джерела臺灣大學
醫學工程學研究所
95
The motion analysis has been widely applied to various domains, such as research of sports medicine, ergonomics, the development of robot, and the computer animation . For the need of the motion analysis measurement, various kinds of human motion capture device have been developed. The optics type system has been most frequently adopted and, has been also applied into the development of commercialized photoelectron image system. The advantage of this kind of system is its extremely high accuracy; however, the biggest shortcoming is its high cost and its higher service expenditure for the repaired cost. Along with digital cameras being available, human motion capture system which utilizes digital cameras in accordance to be developed. The main advantage is its lower price, but its accuracy has to be improved. The purposes of this research are to develop a human motion capture software system using digital cameras in applying a global optimization method (GOM) to increase its accuracy. Two digital cameras were used to capture subject’s gait on level walking. And commercialized motion capture system were used simultaneously. Afterwards by using graphical user interface, users can easily load images captured by digital cameras to this system. After image processing, the three-dimensional coordinates reconstruction using lower extremity model and the global optimization method to reduce the artifact of markers three-dimensional motion data were obtained. These data were thus compared to those data obtained from present commercialized motion capture system. The results showed that the errors of the coordinates of the skin markers and joint angles significantly decreased after correction with GOM.
Schönherr, Ricardo. "Simulationsbasierte Absicherung der Ergonomie mit Hilfe digital beschriebener menschlicher Bewegungen." Doctoral thesis, 2013. https://monarch.qucosa.de/id/qucosa%3A19995.
Повний текст джерелаDigital Human Models are said to be appropriate tools for planning and assessing human work; especially for preventive ergonomics risk assessment. Up to now, the functional range of established software tools is not sufficient and the operation is too complex and time consuming. Thus, in the present doctoral thesis, the development of a method for the preparation of digitally captured human motions for an algorithmic motion generation and automatic ergonomic risk assessment is described. On the summarization of the relevant current level of knowledge follows the description of two empirical studies for motion capturing and analysis. Afterwards the implementation of a method of the ergonomics risk assessment that combines several biomechanical risk factors is explained. The results of the preliminary studies flow into the development of a new software tool for planning and assessing human work – the editor for manual work activities (ema). Finally, the practical evaluation with the help of real planning scenarios is presented.
Cavallo, Daniela. "Computational models for the dynamic assessment of operator’s mental fatigue and the human error probability in production processes." Doctoral thesis, 2022. https://hdl.handle.net/11589/245804.
Повний текст джерелаThe past decade has seen an increase in the use of technologies in everyday activities and work environments in which the need for cognitive resources seems to increase. In contrast, the level of physical exertion seems to decrease. The rapid developments of the so-called "Internet of Things" (IoT) and its new automation archetypes in cyber-physical systems, as well as the increased analytical requirements arising from the need to analyze large amounts of data, are some examples of underlying elements that mark an increased cognitive demand of individuals to perform control tasks and get an overview of the distributed systems we are required to monitor. The main reason for measuring mental or cognitive workload is to quantify mental effort in performing specific tasks and assess its implications on human performance. Human Mental Workload (MWL) modeling can be used to support the design of interfaces, technologies and information-processing activities that are better aligned with each individual's mental capabilities. This doctoral dissertation focuses on developing computational models for the dynamic assessment of operator mental fatigue (which is identified as mental workload and/or cognitive workload) and the probability of human error in executing production process-related tasks. Mental fatigue, its measures, dimensions, models, applications and consequences are addressed. This thesis follows a multidisciplinary approach and is not only confined to the field of industrial ergonomics. Recent developments in the context of theoretical models of MWL and practical applications aimed at business support and management of MWL in operations are presented. Therefore, the contributions have been organized into sections where mental fatigue and the probability of human error in the context of production processes are investigated; here, the models developed are based on the information theory presented by Shannon. The thesis work was organized as follows: (a) State-of-the-art analysis of the increasing importance of the human factor in intelligent production systems, paying particular attention to the importance of human mental fatigue in performing tasks with predominantly cognitive rather than physical parts. (b) State-of-the-art analysis of existing methodologies, applied in different fields and for different purposes, used to assess human mental workload in performing a specific task. (c) Innovative proposals for modeling the operator's mental workload and evaluating the related performance, focusing on physiological factors and different types of tasks to be performed. The state-of-the-art analysis of existing methodologies used for MWL assessment, addressed in Chapter 1, helps to understand the shortcomings in analysing human factors related to mental fatigue in production processes. To overcome these limitations, the "n-back" test, a standardised tool for simulating tasks with different cognitive complexities, is presented in Chapter 2. Both objective and subjective methodologies are used here to assess mental workload during experimental sessions. The case study presented in Chapter 2 is used to simulate a real industrial setting that highlights how operators, due to the increase of cognitive tasks within their work activities, must make an increasing number of decisions. Chapter 3 uses the n-back test and literature data to create a new formulation for quantifying operators' mental workload and performance. The formulations presented consider both subjective and objective parameters of operators; in addition, the ageing workforce in advanced market economies and the impact on the evaluation of human factors in production processes in the era of digitalisation are investigated. Chapter 4 examines the complexity of two-dimensional (2D) object recognition tasks. The presented formulation allows modeling the difficulty of the task and the associated mental workload. Finally, in Chapter 5, human performance in repetitive tasks is studied. Here the operator's performance in performing a manual assembly task is evaluated. The modeling of mental workload, assessment of task difficulty and operator performance presented in this thesis can give the designer a hint about the improvement that can be achieved if the task assignment is optimised by considering different types of tasks and operators. Operator well-being will play a crucial role in task assignment. Mental workload assessment can be applied in job rotation programs to minimise mental workload. As explained in the Introduction, the proposed model formulations can fill the gaps in the existing scientific literature related to human factors in the digital factory.
(11104764), Allegra W. Smith. "Digital Age: A Study of Older Adults' User Experiences with Technology." Thesis, 2021.
Знайти повний текст джерелаUllmann, Sascha. "Einsatz digitaler Menschmodelle zur fähigkeitsgerechten Arbeitsgestaltung für leistungsgewandelte Mitarbeiter." 2021. https://tud.qucosa.de/id/qucosa%3A76029.
Повний текст джерелаThe increasing number of employees with restricted performance is a challenge for the industry. A prospective and corrective workplace design is important to ensure a value-adding and ability-appropriate employment. Especially in the early planning phase, digital human models are helpful for ergonomic workplace design. However, today’s digital human models usually lack functions and methods for the digital design of workplaces for employees with restricted perfomance. A further development of digital human models can support the digital planning of ability-appropriate workplaces. Due to new functions of digital human models, new planning methods with digital human models are also required.:1 EINLEITUNG 1.1 AUSGANGSSITUATION 1.2 AUFBAU DER ARBEIT 2 STAND DER WISSENSCHAFT UND PRAXIS 2.1 ARBEITSGESTALTUNG UND ERGONOMIE 2.1.1 DEFINITION UND ZIELE 2.1.2 ERGONOMIE IM PRODUKTENTSTEHUNGSPROZESS 2.1.3 PLANUNG UND GESTALTUNG VON ARBEITSSYSTEMEN 2.1.4 ARBEITSGESTALTUNG UND ERGONOMIE IM DIGITALEN KONTEXT 2.1.5 DIGITALE MENSCHMODELLE 2.2 LEISTUNGSGEWANDELTE MITARBEITER 2.2.1 LEISTUNG UND LEISTUNGSFÄHIGKEIT 2.2.2 BEGRIFFSBESTIMMUNG LEISTUNGSGEWANDELTER MITARBEITER 2.2.3 UNTERNEHMENSSTRATEGIEN ZUM EINSATZ LEISTUNGSGEWANDELTER MITARBEITER 2.2.4 VERFAHREN ZUR BEURTEILUNG VON ARBEITSPLÄTZEN UND MITARBEITERN 2.3 SCHLUSSFOLGERUNG 2.4 ABLEITUNG DER ZIELSTELLUNG UND TEILZIELE 3 ERARBEITUNG EINER SYSTEMATIK ZUR KLASSIFIZIERUNG LEISTUNGSGEWANDELTER MITARBEITER 3.1 ZIELSTELLUNG 3.2 DEFINITION DER KRITERIEN 3.2.1 GRUNDKÖRPERSTELLUNG 3.2.2 KÖRPERHALTUNG/BEWEGLICHKEIT 3.2.2.1 BEWEGLICHKEIT DER OBEREN EXTREMITÄTEN 3.2.2.2 RUMPFBEWEGLICHKEIT 3.2.2.3 BEWEGLICHKEIT DER UNTEREN EXTREMITÄTEN 3.2.3 LASTENHANDHABUNG 3.2.4 AKTIONSKRÄFTE 3.2.5 VIBRATIONEN/RÜCKSCHLÄGE 3.2.6 SENSORIK 3.2.7 ARBEITSORGANISATION 3.2.8 ARBEITSUMGEBUNG 3.2.9 GESAMTKATALOG 3.3 EXPERTENINTERVIEWS 3.4 ZUSAMMENFASSUNG 4 BESCHREIBUNG EINES MODELLS ZUR INTEGRATION VON LEISTUNGSEINSCHRÄNKUNGEN IN DIGITALE MENSCHMODELLE 4.1 ZIEL UND VORGEHENSWEISE 4.2 PARAMETRISIERUNG DER KRITERIEN ZUR ÜBERFÜHRUNG IN MENSCHMODELLE 4.2.1 KRITERIEN IM KONTEXT DER EINGABE/VERARBEITUNG/AUSGABE 4.2.2 AUFBEREITUNG DER KRITERIEN ZUR DATENINTERPRETATION 4.2.3 (SEMI-)AUTOMATISCHE ERSTELLUNG VON ARBEITSPLATZANFORDERUNGSPROFILEN 4.2.4 BERÜCKSICHTIGUNG VON MITARBEITERFÄHIGKEITSPROFILEN 4.3 ABLEITUNG NOTWENDIGER FUNKTIONSERWEITERUNGEN UND SCHNITTSTELLEN 4.4 ZUSAMMENFASSUNG 5 ENTWICKLUNG EINER METHODIK ZUR DIGITALEN FÄHIGKEITSGERECHTEN ARBEITSGESTALTUNG 5.1 ZIEL UND VORGEHENSWEISE 5.2 WORKFLOW DER DIGITALEN FÄHIGKEITSGERECHTEN ARBEITSGESTALTUNG 5.2.1 PLANUNGSPROZESS DER DIGITALEN ARBEITSGESTALTUNG 5.2.2 PROZESSBESCHREIBUNG DES WORKFLOWS ZUR DIGITALEN FÄHIGKEITSGERECHTEN ARBEITSGESTALTUNG 5.3 ANFORDERUNGEN AN DIE EINGABE, AUSGABE UND SIMULATION 5.3.1 BERÜCKSICHTIGUNG VON MITARBEITERFÄHIGKEITSPROFILEN 5.3.2 AUSGABE VON ARBEITSPLATZANFORDERUNGSPROFILEN 5.3.3 EINSATZANALYSE UND PRODUKTIVITÄTSVERGLEICH 5.3.4 GESTALTUNGSHINWEISE UND HANDLUNGSEMPFEHLUNGEN 5.3.5 AUSGABEDARSTELLUNG UNTER BERÜCKSICHTIGUNG VON LEISTUNGSEINSCHRÄNKUNGEN 5.4 ZUSAMMENFASSUNG 6 ÜBERTRAGUNG DES MODELLS UND DER METHODE AUF DIGITALE MENSCHMODELLE AM BEISPIEL DES EMA 6.1 ZIEL UND VORGEHENSWEISE 6.2 IST-STAND EMA-MENSCHMODELL UND SOFTWARESYSTEM 6.3 BENUTZERZENTRIERTER GESTALTUNGSPROZESS 6.4 ABLEITUNG NOTWENDIGER SOFTWARETECHNISCHER ANPASSUNGEN 6.4.1 BERÜCKSICHTIGUNG VON KRITERIEN ZUR INTEGRATION VON LEISTUNGSEINSCHRÄNKUNGEN 6.4.2 EINGABE UND ANZEIGE VON MITARBEITERFÄHIGKEITS- UND ARBEITSPLATZANFORDERUNGSPROFILEN 6.4.3 DARSTELLUNG DER EINSATZANALYSE UND PRODUKTIVITÄTSVERGLEICH 6.4.4 BERÜCKSICHTIGUNG NICHT ANFORDERUNGSGERECHTER SIMULATIONSSITUATIONEN 6.4.5 AUSGABE VON SITUATIVEN GESTALTUNGSHINWEISEN UND OPTIMIERUNGSPOTENTIALEN 6.4.6 ASSISTENT ZUR NUTZERGEFÜHRTEN FÄHIGKEITSGERECHTEN ARBEITSGESTALTUNG 6.5 BEWERTUNG DER ERZEUGUNG VON ARBEITSPLATZANFORDERUNGSPROFILEN 6.5.1 ZIELSTELLUNG UND UNTERSUCHUNGSGEGENSTAND 6.5.2 STICHPROBE 6.5.3 UNTERSUCHUNGSABLAUF 6.5.4 ERGEBNISSE 6.5.5 ZUSAMMENFASSUNG 6.6 NUTZERORIENTIERTE EVALUATION 6.6.1 ZIELSTELLUNG UND UNTERSUCHUNGSGEGENSTAND 6.6.2 STICHPROBE 6.6.3 UNTERSUCHUNGSABLAUF 6.6.4 ERGEBNISSE UND WEITERE OPTIMIERUNGSPOTENTIALE 6.6.5 ZUSAMMENFASSUNG 6.7 SCHLUSSFOLGERUNG FÜR DIE SOFTWARE-IMPLEMENTIERUNG 7 PRAKTISCHE ANWENDUNG DER METHODE 7.1 BEISPIEL ZUR OPTIMIERUNG VON ARBEITSPLÄTZEN FÜR DEN EINSATZ LEISTUNGSGEWANDELTER MITARBEITER MITTELS SIMULATION 7.2 ZUSAMMENFASSUNG 8 ZUSAMMENFASSUNG UND AUSBLICK 8.1 ZUSAMMENFASSUNG 8.2 LIMITATIONEN DER ERARBEITETEN LÖSUNGEN 8.3 AUSBLICK LITERATURVERZEICHNIS
LUBERTI, GIAN MARCO. "Metodologie di screening delle pericolosità geologiche in ambito urbano storico-archeologico: l’area di Roma dalla stazione Termini all’Aniene tra la via Nomentana e l’anello ferroviario." Doctoral thesis, 2015. http://hdl.handle.net/11573/894277.
Повний текст джерела