Gotowe bibliografie tematyczne / Digital Human Models (DHM)

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Gotowa bibliografia na temat „Digital Human Models (DHM)”

Autor: Grafiati

Data publikacji: 6 września 2023

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Artykuły w czasopismach na temat "Digital Human Models (DHM)"

Chaffin, Don B. "Digital Human Modeling for Workspace Design". Reviews of Human Factors and Ergonomics 4, nr 1 (październik 2008): 41–74. http://dx.doi.org/10.1518/155723408x342844.

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Digital human modeling (DHM) technology offers human factors/ergonomics specialists the promise of an efficient means to simulate a large variety of ergonomics issues early in the design of products and manufacturing workstations. It rests on the premise that most products and manufacturing work settings are specified and designed by using sophisticated computer-aided design (CAD) systems. By integrating a computer-rendered avatar (or hominoid) and the CAD-rendered graphics of a prospective workspace, one can simulate issues regarding who can fit, reach, see, manipulate, and so on. In this chapter, I briefly describe the development of various DHM methods to improve CAD systems. Past concerns about early DHM methods are discussed, followed by a description of some of the recent major developments that represent attempts by various groups to address the early concerns. In this latter context, methods are described for using anthropometric databases to ensure that population shape and size are well modeled. Efforts to integrate various biomechanical models into DHM systems also are described, followed by a section that outlines how human motions are being modeled in different DHM systems. In a final section, I discuss recent work to merge cognitive models of human performance with DHM models of manual tasks. Much has been accomplished in recent years to make digital human models more useful and effective in resolving ergonomics issues during the design of products and manufacturing processes, but much remains to be learned and applied in this rapidly evolving aspect of ergonomics.

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Andreoni, Giuseppe, Marco Mazzola, Tiziana Atzori, Federica Vannetti, Lucia Modi, Sara D’Onofrio i Leonardo Forzoni. "Digital Human Models for Automated Ultrasound User Interface Design". Proceedings of the Human Factors and Ergonomics Society Annual Meeting 60, nr 1 (wrzesień 2016): 561–65. http://dx.doi.org/10.1177/1541931213601129.

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The purpose of this theoretical paper is to describe the development of a new technology for the automated analysis and design definition of Ultrasound (US) system User Interfaces (UI) and US transducers. US examination is a real-time multi-factor approach, which involves the whole sonographer’s body; its automated evaluation, analysis and design must take into account many different factors and aspects which need to be evaluated and implemented. The proposed technology, based on Digital Human Modeling (DHM) systems, would get input from multi-factor technologies such as Motion Analysis, Eye Tracking, Superficial Electromyography, Stereo Imaging and also physical information such as temperature, ECG, respiration activity, etc., applied to different US users for different clinical applications and protocols. The utilization of DHM to manage and analyze these diverse requirements would drive the automated optimization of system design, in terms of ergonomics and workflow.

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Maruyama, Tsubasa, Satoshi Kanai, Hiroaki Date i Mitsunori Tada. "Motion-capture-based walking simulation of digital human adapted to laser-scanned 3D as-is environments for accessibility evaluation". Journal of Computational Design and Engineering 3, nr 3 (25.03.2016): 250–65. http://dx.doi.org/10.1016/j.jcde.2016.03.001.

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Abstract Owing to our rapidly aging society, accessibility evaluation to enhance the ease and safety of access to indoor and outdoor environments for the elderly and disabled is increasing in importance. Accessibility must be assessed not only from the general standard aspect but also in terms of physical and cognitive friendliness for users of different ages, genders, and abilities. Meanwhile, human behavior simulation has been progressing in the areas of crowd behavior analysis and emergency evacuation planning. However, in human behavior simulation, environment models represent only “as-planned” situations. In addition, a pedestrian model cannot generate the detailed articulated movements of various people of different ages and genders in the simulation. Therefore, the final goal of this research was to develop a virtual accessibility evaluation by combining realistic human behavior simulation using a digital human model (DHM) with “as-is” environment models. To achieve this goal, we developed an algorithm for generating human-like DHM walking motions, adapting its strides, turning angles, and footprints to laser-scanned 3D as-is environments including slopes and stairs. The DHM motion was generated based only on a motion-capture (MoCap) data for flat walking. Our implementation constructed as-is 3D environment models from laser-scanned point clouds of real environments and enabled a DHM to walk autonomously in various environment models. The difference in joint angles between the DHM and MoCap data was evaluated. Demonstrations of our environment modeling and walking simulation in indoor and outdoor environments including corridors, slopes, and stairs are illustrated in this study. Highlights An adaptive walking simulation algorithm of the digital human was developed. The environment models are automatically generated from laser-scanned point clouds. A digital human can walk autonomously in various as-built environment models. Simulated walking motion of the digital human is similar to one of real human. Elapsed time of modeling and simulation is short enough for practical application.

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Şuteu Băncilă, Ana Maria Adina, i Constantin Buzatu. "Digital Human Modeling in the Development of Assistive Technologies for Elderly Users". Applied Mechanics and Materials 809-810 (listopad 2015): 835–40. http://dx.doi.org/10.4028/www.scientific.net/amm.809-810.835.

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As ergonomics has become an integral part of the design process, digital human modeling is a rapidly emerging area that links computer-aided engineering design, human factors engineering and applied ergonomics. This paper briefly presents some of the basic principles of user-centered design and their relationship to ergonomics, together with the application of digital human modeling (DHM) in the design process of an assistive walking aid for elderly users with low mobility, considering the assessment of risk and comfort of the system. The use of DHM in order to improve certain features of a system or product is not a new concept, various types of digital human models being used for over 35 years. Using the Human Builder module in CATIA V5 two human models are generated with the help of anthropometric data collected from a group of >65 years old participants living in assistive care centers. The models are further employed in testing the safety and comfort level of the walking aid currently used by the participants, resulting the need of immediate changes in the device.

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Sänger, Johannes, Lukas Wirth, Zhejun Yao, David Scherb, Jörg Miehling, Sandro Wartzack, Robert Weidner, Andreas Lindenmann i Sven Matthiesen. "ApOL-Application Oriented Workload Model for Digital Human Models for the Development of Human-Machine Systems". Machines 11, nr 9 (29.08.2023): 869. http://dx.doi.org/10.3390/machines11090869.

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Since musculoskeletal disorders are one of the most common work-related diseases for assemblers and machine operators, it is crucial to find new ways to alleviate the physical load on workers. Support systems such as exoskeletons or handheld power tools are promising technology to reduce the physical load on the humans. The development of such systems requires consideration of the interactions between human and technical systems. The physical relief effect of the exoskeleton can be demonstrated in experimental studies or by simulation with the digital human model (DHM). For the digital development of these support systems, an application-oriented representation of the workload is necessary. To facilitate digital development, an application-oriented workload model (ApOL model) of an overhead working task is presented. The ApOL model determines the load (forces, torques) onto the DHM during an overhead screw-in task using a cordless screwdriver, based on experimental data. The ApOL model is verified by comparing the simulated results to the calculated values from a mathematical model, using experimental data from three participants. The comparison demonstrates successful verification, with a maximum relative mean-absolute-error (rMAE) of the relevant load components at 11.4%. The presented ApOL model can be utilized to assess the impact of cordless screwdriver design on the human workload and facilitate a strain-based design approach for support systems e.g., exoskeletons.

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Geiger, Andreas, Elisabeth Brandenburg i Rainer Stark. "Natural Virtual Reality User Interface to Define Assembly Sequences for Digital Human Models". Applied System Innovation 3, nr 1 (12.03.2020): 15. http://dx.doi.org/10.3390/asi3010015.

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Digital human models (DHMs) are virtual representations of human beings. They are used to conduct, among other things, ergonomic assessments in factory layout planning. DHM software tools are challenging in their use and thus require a high amount of training for engineers. In this paper, we present a virtual reality (VR) application that enables engineers to work with DHMs easily. Since VR systems with head-mounted displays (HMDs) are less expensive than CAVE systems, HMDs can be integrated more extensively into the product development process. Our application provides a reality-based interface and allows users to conduct an assembly task in VR and thus to manipulate the virtual scene with their real hands. These manipulations are used as input for the DHM to simulate, on that basis, human ergonomics. Therefore, we introduce a software and hardware architecture, the VATS (virtual action tracking system). This paper furthermore presents the results of a user study in which the VATS was compared to the existing WIMP (Windows, Icons, Menus and Pointer) interface. The results show that the VATS system enables users to conduct tasks in a significantly faster way.

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Reed, Matthew P., Don B. Chaffin i Julian Faraway. "Critical Features in Human Motion Simulation for Ergonomic Analysis". Proceedings of the Human Factors and Ergonomics Society Annual Meeting 49, nr 12 (wrzesień 2005): 1196–99. http://dx.doi.org/10.1177/154193120504901221.

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Digital human figure models (DHM) are increasingly the tools of choice for assessments of the physical ergonomics of products and workplaces. Software representations of users and workers are used to visualize people performing tasks of interest. Analyses have usually focused on clearance and reach in static postures, not because the actual tasks are static, but rather because DHM have lacked robust, accurate motion simulation capability. Research is underway at many institutions to develop improved motion simulation methods, drawing on a wide variety of methodologies from fields such as computer graphics, kinesiology, motor control, and robotics. Experience in the Human Motion Simulation Laboratory at the University of Michigan suggests that conventional metrics of accuracy for posture and movement prediction do not adequately capture the aspects of human movement that are most important for ergonomic analysis. This paper identifies and justifies a set of these critical features.

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Rustandi, Apid, i Sinung Nugroho. "Investigation of Unexpected Crossing-Lane Activity on Curving Road Using Digital Human Modelling Analysis". RSF Conference Series: Engineering and Technology 2, nr 2 (29.11.2022): 127–38. http://dx.doi.org/10.31098/cset.v2i2.566.

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This study investigates the truck driving posture, vision safety, and perception time safety for truck drivers adjusting their velocity at the curving road due to crossing lane activity. The investigation method starts defining the road contour of the target using Geospatial Information System software (QBase). After the road elevation projection was made, the line was drawn to the surface in CAD software. After that, Digital Human Modelling (DHM) was created on the Japanese population with Indonesian anthropometry properties of 50%ile. The environment scenario was assembled based on the 3D model road surface and 3D vehicle models, and DHM in series. The objective scenario used vision analysis and driver perception response analysis. The result shows that even if the truck and SUV blockage has not appeared, the truck driver will not see the motorcycle on the corner. After that, pillar-A also contributes to blocking the truck driver's vision. Since it contributes to construction safety, the trade-off cannot be negotiated. A speed trap shall be applied before the curving zone to increase safety. The speed trap could instantly reduce the truck and other vehicles' speed in both lanes.

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Rhén, Ida-Märta, Xuelong Fan, Magnus Kjellman i Mikael Forsman. "A possible revival of population-representing digital human manikins in static work situations – exemplified through an evaluation of a prototype console for robotic surgery". Work 70, nr 3 (26.11.2021): 833–51. http://dx.doi.org/10.3233/wor-213604.

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BACKGROUND: In the 90s, digital human manikins (DHMs) were introduced in planning of workstations, by static or semi-static simulations. Modern DHMs can simulate dynamic work and offer a rapid way for a virtual pre-production ergonomic evaluation. Work-related musculoskeletal disorders may affect surgical performance and patient safety. A prototype of an open console, which is contrary to the conventional closed consoles and may be seen as a representative for a new generation, has been designed to reduce workload for robotic surgery surgeons. OBJECTIVE: The aim of this project was to test a new DHM tool with improved usability to evaluate the ergonomics of a console of a robotic surgical system in a pre-production stage. METHODS: The DHM tool IMMA was used together with a 3D model of the prototype console. Twelve manikins who represented females and males from two national populations were introduced. Manikin-console distances, after console adjustments per manikin, were compared with a US checklist and Swedish standard for VDU work. RESULTS: The DHM tool was useful for this case, but the distances of the checklist and the standard were needed to be obtained “manually”. The automatic functions of the DHM worked smoothly but were not optimized for VDU work. The prototype fulfilled most, but not all, of the ergonomic criteria of the checklist and the standard. CONCLUSIONS: There is room for improvements of the adjustable ranges of the console prototype. DHMs may facilitate rapid pre-production evaluation of workstations for static work; if ergonomic assessment models for VDU work are built-in, there may be a revival of DHMs in static work situations.

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Chatterjee, Tirthankar, Debojyoti Bhattacharyya, Deepti Majumdar i Madhusudan Pal. "Ergonomic Assessment of Multi Calibre Individual Weapon System in Virtual Reality Platform". Defence Science Journal 69, nr 3 (30.04.2019): 240–48. http://dx.doi.org/10.14429/dsj.69.14426.

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The primary objective of the study was to assess the compatibility of multi calibre individual weapon system (MCIWS) with the shorter, medium and larger individual users of Indian Army. Three dynamic digital human models (DHM) 5thp, 50thp, 95thp army pooled (AP) population were considered to accommodate wide range (more than 90 per cent) of the army population for ergonomic analysis of the weapon system with the help of digital human modelling software Jack. Solid model of MCIWS which was in Parasolid file format X_T (*.x_t) was imported into NX5 (solid model design software) and subsequently converted to JT (*.jt) format. This solid model was later translated into Jack 5.0.1 environment. Standing, squatting and crawling with the weapon were adopted for the study. Angular deviations of important joints, posture prediction using OWAS, and comfort discomfort assessment using Dreyfus 3D method were carried out in the study. The result of the study revealed that the operation in squatting and crawling conditions may increase postural load on neck, shoulder and upper arm. The pistol grip size, shape and contour are acceptable for the taller population. Removal of corrugated gripping surface, reduction of grip diameter and space adjustment for gloves use will be effective for optimal use. The position and size of fore grip seemed suitable for the taller users. Sight system could be accessed by all three user populations. It is advised to avoid holding the weapon for long duration with hands to prevent overuse injury or undue fatigue.

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Rozprawy doktorskie na temat "Digital Human Models (DHM)"

Kronfeld, Thomas, i 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.

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Digitale Menschmodelle (DMM) werden aktuell in Unternehmen vorwiegend zur ergonomischen Planung und Überprüfung der Ausführbarkeit und Erträglichkeit von Arbeitsprozessen eingesetzt. Im Rahmen der Nachwuchsforschergruppe „The Smart Virtual Worker“, welche im Interdisziplinären Kompetenzzentrum Virtual Humans der TU Chemnitz angesiedelt ist, entstand ein Framework zur Simulation komplexer Arbeitsabläufe im Kontext der virtuellen Fabrik. Ziel war die Entwicklung eines digitalen Menschmodells für den Einsatz in klein- und mittelständischen Unternehmen. Hierbei standen die autonome Steuerung, eine realistische Animation sowie die Einbeziehung physischer und psychischer Faktoren in die ergonomische Bewertung eines Arbeitsablaufes im Mittelpunkt. Darauf aufbauend wurde eine haptische Nutzerschnittstelle zur interaktiven Fabrik- und Aufgabenplanung entwickelt. Neben der Positionierung von statischen Objekten ist mit diesem Interface auch die Integration und Anpassung von Arbeitsaufgaben möglich.

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Ramos, 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.

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Made available in DSpace on 2016-12-12T20:17:55Z (GMT). No. of bitstreams: 1 117846.pdf: 2419985 bytes, checksum: a16e43755b4c91cb6a1e7311b13b4db4 (MD5) Previous issue date: 2014-07-30
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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.

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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.

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The growing implementation of ergonomics in the automotive sector sets high demands on Digital Human Modelling (DHM) functionalities towards the simulation of more realistic environments and the reduction of physical model dependency. During the current degree project a leading element that smartly assembles DHM usage (implementation of high-level commanding languages) was designed, revolving around the industries’ needs which were gathered and interpreted in order to organize current functions in this language and suggest new complementary functions that would create a language environment suitable for non-expert users. This was achieved by focusing in an intuitive word-function structure, the proposal of defaults and other tools that aid users with different kinds of expertise. The need for realism of simulations was assessed by the language design especially by designing means to coordinate synchronic manikin-actions.
Virtual Driver

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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.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO
A 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.

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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.

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The objective of this project is to develop a driving test using a Digital Human Modeling tool (DHM), specifically IPS IMMA, which will allow the evaluation of the ergonomics of the interior of vehicles as currently demanded by the automotive companies. Thus, improving both the design and the design process. This will involve a study of the driving and the tasks carried out by a real person to end up programming them in the DHM software. Based on this study an interface is suggested that guides engineers or ergonomists to design their own driving tests and enable them to evaluate their own designs without a high specialization in DHM tools and software. Taking into account the already present autonomous cars and their future development, the conceptual design of a two positions steering wheel (autonomous/manual driving) will be introduced as an example to be added in the driving test. This example is intended to show how DHM tools can be used to evaluate different designs solutions in early stages of the product development process. This project will be a contribution to one of the sections of the ADOPTIVE project carried out at the University of Skövde and in collaboration with Swedish automotive companies.

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Gonzalez, 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.

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Günzkofer, Fabian [Verfasser]. "Elbow Strength Modelling for Digital Human Models / Fabian Günzkofer". München : Verlag Dr. Hut, 2013. http://d-nb.info/1045988197/34.

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Lima, Antonio. "Digital traces of human mobility and interaction : models and applications". Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/6833/.

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In the last decade digital devices and services have permeated many aspects of everyday life. They generate massive amounts of data that provide insightful information about how people move across geographic areas and how they interact with others. By analysing this detailed information, it is possible to investigate aspects of human mobility and interaction. Therefore, the thesis of this dissertation is that the analysis of mobility and interaction traces generated by digital devices and services, at different timescales and spatial granularity, can be used to gain a better understanding of human behaviour, build new applications and improve existing services. In order to substantiate this statement I develop analytical models and applications supported by three sources of mobility and interaction data: online social networks, mobile phone networks and GPS traces. First, I present three applications related to data gathered from online social networks, namely the analysis of a global rumour spreading in Twitter, the definition of spatial dissemination measures in a social graph and the analysis of collaboration between developers in GitHub. Then I describe two applications of the analysis of country-wide data of cellular phone networks: the modelling of epidemic containment strategies, with the goal of assessing their efficacy in curbing infectious diseases; the definition of a mobility-based measure of individual risk, which can be used to identify who needs targeted treatment. Finally, I present two applications based on GPS traces: the estimation of trajectories from spatially-coarse temporally-sparse location traces and the analysis of routing behaviour in urban settings.

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Kronfeld, Thomas, i Guido Brunnett. "Simulation komplexer Arbeitsabläufe im Bereich der digitalen Fabrik". Technische Universität Dresden, 2016. https://tud.qucosa.de/id/qucosa%3A30296.

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Oh, 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.

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Hospital and clinical environments are rapidly moving toward the digital capture, processing, storage, and transmission of medical images. X-ray cardio-angiograms are used to observe coronary blood flow, diagnose arterial disease and perform coronary angioplasty or bypass surgery. The digital storage and transmission of these cardiovascular images has significant potential to improve patient care. For example, digital images enable electronic archiving, network transmission and useful manipulation of diagnostic information such as image enhancement. The efficient compression of medical images is tremendously important for economical storage and fast transmission, since digitised medical images must be of high-quality, requiring high-resolution and having a large volume in general. The use of lossily compressed images has created a need for the development of objective quality assessment metrics I measuring perceived subjective opinions by viewers for optimal compression rate/distortion trade-off. Quality assessment metrics, based on models of the human visual system, have more accurately predicted perceived quality than traditional error-based objective quality metrics. This thesis presents a proposed Multi-stage Perceptual Quality Assessment (MPQA) model for compressed images. The motivation for the development of a perceptual quality assessment is to measure (in)visible physical differences between original and processed images. MPQA produces visible distortion maps and quantitative error measured informed by considerations of the human visual system. Original and decompressed images are decomposed into different spatial frequency bands and orientations modelling the human cortex. Contrast errors are calculated for each frequency and orientation, and masked as a function of contrast sensitivity and background uncertainty. Spatially masked contrast error measurements are made across frequency bands and orientations to produce a single Perceptual Distortion Visibility Map (PDVM). A Perceptual Quality Rating (PQR) is calculated from the PDVM and transformed into a one to five scale for direct comparison with the Mean Opinion Score (MOS), generally used in subjective rating. For medical applications, acceptable decompressed medical images might be those which are perceptually pleasing, contain no visible artefacts and have no loss in diagnostic content. To investigate this problem, clinical tests identifying diagnostically acceptable image reconstructions is performed and demonstrates that the proposed perceptual quality rating method has better agreement with observers' responses than objective error measurement methods. The vision models presented in the thesis are also implemented in the thresholding and quantisation stages of a compression algorithm. An HVS-informed perceptual thresholding and quantisation method is also shown to produce improved compression ratio performance with less visible distortions.

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Książki na temat "Digital Human Models (DHM)"

Human resource management in the digital economy: Creating synergy between competency models and information. Hershey, PA: Information Science Reference, 2012.

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1951-, Rogowitz Bernice Ellen, Allebach Jan P, Society of Photo-optical Instrumentation Engineers., SPSE--the Society for Imaging Science and Technology., Technical Association of the Graphic Arts. i SPIE/SPSE Symposium on Electronic Imaging Science and Technology (1990 : Santa Clara, Calif.), red. Human vision and electronic imaging: Models, methods, and applications : 12-14 February 1990, Santa Clara, California. Bellingham, Wash., USA: SPIE, 1990.

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Wörz, Stefan. 3D parametric intensity models for the localization of 3D anatomical point landmarks and 3D segmentation of human vessels. Berlin: Akademische Verlagsgesellschaft Aka, 2006.

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George, Xu Xie, i Eckerman K. F, red. Handbook of anatomical models for radiation dosimetry. Boca Raton, FL: CRC Press/Taylor & Francis Group, 2010.

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service), SpringerLink (Online, red. Digital Human Modeling: Second International Conference, ICDHM 2009, Held as Part of HCI International 2009, San Diego, CA, USA, July 19-24, 2009. Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009.

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service), SpringerLink (Online, red. Innovation in product design: From CAD to virtual prototyping. London: Springer, 2011.

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Camara, Oscar. Statistical Atlases and Computational Models of the Heart. Imaging and Modelling Challenges: Third International Workshop, STACOM 2012, Held in Conjunction with MICCAI 2012, Nice, France, October 5, 2012, Revised Selected Papers. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013.

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L, Commons Michael, i Symposium on Quantitative Analyses of Behavior., red. Behavioral approaches to pattern recognition and concept formation. Hillsdale, NJ: Erlbaum Associates, 1990.

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L, Commons Michael, i Symposium on Quantitative Analyses of Behavior. (8th : 1985 : Harvard University), red. Computational and clinical approaches to pattern recognition and concept formation. Hillsdale, N.J: Lawrence Erlbaum Associates, 1990.

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1953-, Fisher Bob, Dawson-Howe K, O'Sullivan Carol 1965- i International Symposium on Virtual and Augmented Architecture (2001 : Dublin, Ireland), red. Virtual and augmented architecture (VAA'01): Proceedings of the International Symposium on Virtual and Augmented Architecture (VAA'01), Trinity College, Dublin, 21-22 June 2001. London: Springer, 2001.

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Części książek na temat "Digital Human Models (DHM)"

Rivera, Francisco Garcia, Anna Brolin, Estela Perez Luque i Dan Högberg. "A Framework to Model the Use of Exoskeletons in DHM Tools". W Advances in Simulation and Digital Human Modeling, 312–19. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-79763-8_38.

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Bubb, Heiner. "Future Applications of DHM in Ergonomic Design". W Digital Human Modeling, 779–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-73321-8_89.

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Robbins, Bryan, Daniel Carruth i Alexander Morais. "Bridging the Gap between HCI and DHM: The Modeling of Spatial Awareness within a Cognitive Architecture". W Digital Human Modeling, 295–304. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02809-0_32.

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Kolbeinsson, Ari, Erik Brolin i Jessica Lindblom. "Data-Driven Personas: Expanding DHM for a Holistic Approach". W Advances in Simulation and Digital Human Modeling, 296–303. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-79763-8_36.

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Mårdberg, Peter, Dan Högberg, Johan S. Carlson i Rikard Söderberg. "Towards Enhanced Functionality and Usability of Giving Manikin Task Instructions in a DHM Tool". W Advances in Digital Human Modeling, 44–51. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-37848-5_5.

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Feyen, Robert G. "Bridging the Gap: Exploring Interactions Between Digital Human Models and Cognitive Models". W Digital Human Modeling, 382–91. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-73321-8_44.

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Beckmann, Michael, i Jeronimo Dzaack. "Incorporating Motion Data and Cognitive Models in IPS2". W Digital Human Modeling, 379–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21799-9_42.

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Cloutier, Aimee, Robyn Boothby i Jingzhou (James) Yang. "Motion Capture Experiments for Validating Optimization-Based Human Models". W Digital Human Modeling, 59–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21799-9_7.

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Dzaack, Jeronimo, i Leon Urbas. "Multilevel Analysis of Human Performance Models in Safety-Critical Systems". W Digital Human Modeling, 375–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02809-0_40.

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Benderius, Ola, Gustav Markkula, Krister Wolff i Mattias Wahde. "A Simulation Environment for Analysis and Optimization of Driver Models". W Digital Human Modeling, 453–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21799-9_51.

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Streszczenia konferencji na temat "Digital Human Models (DHM)"

Bhatia, Nitesh, Ciara M. Pike-Burke, Eduardo M. Normando i Omar K. Matar. "Reinforcement learning with digital human models of varying visual characteristics". W Proceedings of the 7th International Digital Human Modeling Symposium (DHM 2022) and Iowa Virtual Human Summit 2022 -. University of Iowa Libraries Publishing, 2022. http://dx.doi.org/10.17077/dhm.31782.

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Fleischer, Martin. "Improved modeling approach for the usage of mixed linear effects models in empirical digital human models". W Proceedings of the 7th International Digital Human Modeling Symposium (DHM 2022) and Iowa Virtual Human Summit 2022 -. University of Iowa Libraries Publishing, 2022. http://dx.doi.org/10.17077/dhm.31786.

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Harih, Gregor, i Vasja Plesec. "Improving ergonomic value of product interface materials using numerical digital human models". W Proceedings of the 7th International Digital Human Modeling Symposium (DHM 2022) and Iowa Virtual Human Summit 2022 -. University of Iowa Libraries Publishing, 2022. http://dx.doi.org/10.17077/dhm.31739.

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Brolin, Erik, Niclas Delfs, Martin Rebas, Tobias Karlsson, Lars Hanson i Dan Högberg. "Development of body shape data based digital human models for ergonomics simulations". W Proceedings of the 7th International Digital Human Modeling Symposium (DHM 2022) and Iowa Virtual Human Summit 2022 -. University of Iowa Libraries Publishing, 2022. http://dx.doi.org/10.17077/dhm.31759.

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Brolinab, Erik, Dan Högberga i Lars Hansonbc. "Design of a Digital Human Modelling Module for Consideration of Anthropometric Diversity". W Applied Human Factors and Ergonomics Conference. AHFE International, 2020. http://dx.doi.org/10.54941/ahfe100418.

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Digital human modelling (DHM) tools are useful when evaluating human-machine interaction as they enable consideration of anthropometric diversity by facilitating the creation of human models, so called manikins, of different sizes and proportions. This paper presents the design of a module, as part of a DHM tool, made to enable a more holistic approach when defining manikin characteristics. The module is created based on previous user interviews and literature studies on the use of DHM systems and advanced mathematical methods for anthropometric diversity consideration. The module is aimed to support and guide non-expert users while at the same time support effective use and provide appropriate functionality also for expert users. The module acts as a digital guide and supports standardised working procedures when creating manikins to be used in subsequent ergonomics simulations and analyses, and shows a strong visual connection between user interface choices and their response.

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Hodkin Jr., Randall J., i Michael E. Miller. "Methods for including human variability in system performance models". W Proceedings of the 7th International Digital Human Modeling Symposium (DHM 2022) and Iowa Virtual Human Summit 2022 -. University of Iowa Libraries Publishing, 2022. http://dx.doi.org/10.17077/dhm.31789.

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Maruyama, Tsubasa, Satoshi Kanai i Hiroaki Date. "Vision-Based Wayfinding Simulation of Digital Human Model in Three Dimensional as-is Environment Models and its Application to Accessibility Evaluation". W ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-59170.

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Elderly and disabled individuals must be able to access the indoor and outdoor environment in an easy and safe manner. Accessibility must be assessed not only in terms of physical friendliness for users, but also of cognitive friendliness such as the ease of wayfinding. To ensure the ease of wayfinding, signage information available at every key decision point is essential because it enables people to find their way in unfamiliar environment. The aim of the present study is to develop virtual accessibility evaluation system that evaluates the environment accessibility from the cognitive friendliness aspect, such as the ease of wayfinding, by combining realistic human behavior simulation using a digital human model (DHM) with as-is environment models. To realize this system, we develop a vision-based wayfinding simulation algorithm for the DHM in textured three-dimensional (3D) as-is environment models. The as-is environment models are constructed with the structure-from-motion (SfM) technique. During the wayfinding simulation, the visibility and legibility of each sign are evaluated on the basis of the visual perception of the DHM and its visibility catchment area (VCA). The DHM walking trajectory is dynamically generated depending on the perceived sign. When a disorientation place is detected where the DHM cannot find any sign indicating its destination, plans for rearranging the signs are proposed by the simulation user and then examined using a developed virtual eyesight simulator (VES). The VES enables the user to check the DHM eyesight virtually during the wayfinding simulation through a head-mounted display. To mimic visual impairments, visual impairment filters are introduced into the VES. In this paper, we demonstrate the process of detecting the disorientation place, and planning and evaluating the rearranged signage.

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Alemany, Joseph, Meghan Garvey, Kristin Gowers, Robyn Highfill-McRoy, Patrick Walsh i Arlington Wilson. "Multi-modal Event Standardization Platform of Biometric-Derived Human Performance Models in University Students". W Proceedings of the 7th International Digital Human Modeling Symposium (DHM 2022) and Iowa Virtual Human Summit 2022 -. University of Iowa Libraries Publishing, 2022. http://dx.doi.org/10.17077/dhm.31765.

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Sabbah, Adel Olaf, i Heiner Bubb. "Development of a Motorcycle Posture Model for DHM Systems". W Digital Human Modeling for Design and Engineering Symposium. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2008. http://dx.doi.org/10.4271/2008-01-1866.

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Kyosev, Yordan, Tino Kühn i Ann-Malin Schmidt. "Automatic generation of partially homogenized FEM human body models based on 3D body scan data". W Proceedings of the 7th International Digital Human Modeling Symposium (DHM 2022) and Iowa Virtual Human Summit 2022 -. University of Iowa Libraries Publishing, 2022. http://dx.doi.org/10.17077/dhm.31779.

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Raporty organizacyjne na temat "Digital Human Models (DHM)"

Li, Jian, Peijing Li i Jingwen Hu. Digital human modeling in automotive engineering applications: a systematic review and bibliometric mapping. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, październik 2022. http://dx.doi.org/10.37766/inplasy2022.10.0094.

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Review question / Objective: The aim of this systematic review is to investigate the state of the art of digital human models (DHMs) applied in the field of transportation and automotive engineering, to better inform the development of new models for such use cases. To this end, the proposed systematic review will address the following questions: What is the general trend of research in this field? Which specific use cases, methodologies, and human models are being more widely studied or utilized than others? How can we describe such study characteristics in a structured and quantitative manner? Eligibility criteria: Eligible publications included in the review are screened according to the following criteria: (a) The publication must be a full-text article published in an academic journal or in the proceedings of an academic conference, (b) The publication must be final and the article must be in press, (c) The language of the publication must be English, (d) The publication must apply digital human models in a transportation or automotive engineering context, (e) No particular restrictions are placed on the country and/or region of origin of the publication.

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Alonso-Robisco, Andres, i Jose Manuel Carbo. Analysis of CBDC Narrative OF Central Banks using Large Language Models. Madrid: Banco de España, sierpień 2023. http://dx.doi.org/10.53479/33412.

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Central banks are increasingly using verbal communication for policymaking, focusing not only on traditional monetary policy, but also on a broad set of topics. One such topic is central bank digital currency (CBDC), which is attracting attention from the international community. The complex nature of this project means that it must be carefully designed to avoid unintended consequences, such as financial instability. We propose the use of different Natural Language Processing (NLP) techniques to better understand central banks’ stance towards CBDC, analyzing a set of central bank discourses from 2016 to 2022. We do this using traditional techniques, such as dictionary-based methods, and two large language models (LLMs), namely Bert and ChatGPT, concluding that LLMs better reflect the stance identified by human experts. In particular, we observe that ChatGPT exhibits a higher degree of alignment because it can capture subtler information than BERT. Our study suggests that LLMs are an effective tool to improve sentiment measurements for policy-specific texts, though they are not infallible and may be subject to new risks, like higher sensitivity to the length of texts, and prompt engineering.

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Rudd, Ian. Leveraging Artificial Intelligence and Robotics to Improve Mental Health. Intellectual Archive, lipiec 2022. http://dx.doi.org/10.32370/iaj.2710.

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Artificial Intelligence (AI) is one of the oldest fields of computer science used in building structures that look like human beings in terms of thinking, learning, solving problems, and decision making (Jovanovic et al., 2021). AI technologies and techniques have been in application in various aspects to aid in solving problems and performing tasks more reliably, efficiently, and effectively than what would happen without their use. These technologies have also been reshaping the health sector's field, particularly digital tools and medical robotics (Dantas & Nogaroli, 2021). The new reality has been feasible since there has been exponential growth in the patient health data collected globally. The different technological approaches are revolutionizing medical sciences into dataintensive sciences (Dantas & Nogaroli, 2021). Notably, with digitizing medical records supported the increasing cloud storage, the health sector created a vast and potentially immeasurable volume of biomedical data necessary for implementing robotics and AI. Despite the notable use of AI in healthcare sectors such as dermatology and radiology, its use in psychological healthcare has neem models. Considering the increased mortality and morbidity levels among patients with psychiatric illnesses and the debilitating shortage of psychological healthcare workers, there is a vital requirement for AI and robotics to help in identifying high-risk persons and providing measures that avert and treat mental disorders (Lee et al., 2021). This discussion is focused on understanding how AI and robotics could be employed in improving mental health in the human community. The continued success of this technology in other healthcare fields demonstrates that it could also be used in redefining mental sicknesses objectively, identifying them at a prodromal phase, personalizing the treatments, and empowering patients in their care programs.

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