Proceedings Virtual Reality Annual International Symposium '95最新文献

Human figure synthesis and animation for virtual space teleconferencing 虚拟空间远程会议的人体图形合成和动画

Proceedings Virtual Reality Annual International Symposium '95 Pub Date : 1995-03-11 DOI: 10.1109/VRAIS.1995.512487

Karansher Singh, J. Ohya, Richard E. Parent

{"title":"Human figure synthesis and animation for virtual space teleconferencing","authors":"Karansher Singh, J. Ohya, Richard E. Parent","doi":"10.1109/VRAIS.1995.512487","DOIUrl":"https://doi.org/10.1109/VRAIS.1995.512487","url":null,"abstract":"Human figure animation is it widely researched area with many applications. This paper addresses specific issues that deal with the synthesis, animation and environmental interaction of human figures within a virtual space teleconferencing system. A layered representation of the human figure is adopted. Skeletal posture is determined from magnetic sensors on the body, using heuristics and inverse kinematics. This paper describes the use of implicit function techniques in the synthesis and animation of a polymesh geometric skin over the skeletal structure. Implicit functions perform detection and handling of collisions with an optimal worst case time complexity that is linear in the number polymesh vertices. Body deformations resulting from auto-collisions are handled elegantly and homogeneously as part of the environment. Further, implicit functions generate precise collision contact surfaces and have the capability to model the physical characteristics of muscles in systems that employ force feedback. The real time implementation within a virtual space teleconferencing system, illustrates this new approach, coupling polymesh and implicit surface based modeling and animation techniques.","PeriodicalId":199941,"journal":{"name":"Proceedings Virtual Reality Annual International Symposium '95","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114510666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 30

A distributed virtual environment for concurrent engineering 并行工程的分布式虚拟环境

Proceedings Virtual Reality Annual International Symposium '95 Pub Date : 1995-03-11 DOI: 10.1109/VRAIS.1995.512492

J. Maxfield, T. Fernando, P. Dew

引用次数: 38

Presence in virtual environments as a function of visual and auditory cues 作为视觉和听觉线索的功能，存在于虚拟环境中

Proceedings Virtual Reality Annual International Symposium '95 Pub Date : 1995-03-11 DOI: 10.1109/VRAIS.1995.512482

C. Hendrix, W. Barfield

{"title":"Presence in virtual environments as a function of visual and auditory cues","authors":"C. Hendrix, W. Barfield","doi":"10.1109/VRAIS.1995.512482","DOIUrl":"https://doi.org/10.1109/VRAIS.1995.512482","url":null,"abstract":"The paper reports the results of two experiments each investigating the sense of presence within visual and auditory virtual environments. The variables for the studies included the presence or absence of head tracking, the presence or absence of stereoscopic cues, the geometric field of view (GFOV) used to design the visual display, the presence or absence of spatialized sound and the addition of spatialized versus non-spatialized sound to a stereoscopic display. In both studies, subjects were required to navigate a virtual environment and to complete a questionnaire designed to ascertain the level of presence experienced by the participant within the virtual world. The results indicated that the reported level of presence was significantly higher when head tracking and stereoscopic cues were provided, with more presence associated with a 50 and 90 degree GFOV when compared to a narrower 10 degree GFOV. Further, the addition of spatialized sound did significantly increase ones sense of presence in the virtual environment, on the other hand, the addition of spatialized sound did not increase the apparent realism of that environment.","PeriodicalId":199941,"journal":{"name":"Proceedings Virtual Reality Annual International Symposium '95","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132259261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 118

Ultrasonic calibration of a magnetic tracker in a virtual reality space 虚拟现实空间磁跟踪器的超声标定

Proceedings Virtual Reality Annual International Symposium '95 Pub Date : 1995-03-11 DOI: 10.1109/VRAIS.1995.512494

Morteza Ghazisaedy, David Adamczyk, D. Sandin, R. Kenyon, T. DeFanti

引用次数: 79

An application of shared virtual reality to situational training 共享虚拟现实在情境训练中的应用

Proceedings Virtual Reality Annual International Symposium '95 Pub Date : 1995-03-11 DOI: 10.1109/VRAIS.1995.512491

S. Stansfield, D. Shawver, N. Miner, David Rogers

引用次数: 36

Production and playback of human figure motion for 3D virtual environments 三维虚拟环境中人体运动的制作和回放

Proceedings Virtual Reality Annual International Symposium '95 Pub Date : 1995-03-11 DOI: 10.1109/VRAIS.1995.512488

John P. Granieri, Jonathan Crabtree, N. Badler

引用次数: 30

Simulation and presentation of curved surface in virtual reality environment through surface display 通过曲面显示技术实现虚拟现实环境中曲面的仿真与表示

Proceedings Virtual Reality Annual International Symposium '95 Pub Date : 1995-03-11 DOI: 10.1109/VRAIS.1995.512498

K. Hirota, M. Hirose

引用次数: 48

Quantification of adaptation to virtual-eye location in see-thru head-mounted displays 透视式头戴式显示器对虚拟眼定位的适应性量化

Proceedings Virtual Reality Annual International Symposium '95 Pub Date : 1995-03-11 DOI: 10.1109/VRAIS.1995.512480

J. Rolland, F. Biocca, S. T. Barlow, A. Kancherla

{"title":"Quantification of adaptation to virtual-eye location in see-thru head-mounted displays","authors":"J. Rolland, F. Biocca, S. T. Barlow, A. Kancherla","doi":"10.1109/VRAIS.1995.512480","DOIUrl":"https://doi.org/10.1109/VRAIS.1995.512480","url":null,"abstract":"An experiment was conducted on the effect of a prototype see-thru head-mounted display (HMD) on visuo-motor adaptation. When wearing video see-thru HMDs in augmented reality systems, subjects see the world around them through a pair of head-mounted video cameras. The study looked at the effects of sensory rearrangement caused by a HMD design that displaces the user's \"virtual\" eye position forward (165 mm) and up (62 mm) toward the spatial position of the cameras. Measures of hand-eye coordination and speed on a manual task revealed substantial perceptual costs of the eye displacement, but also evidence of adaptation. Upon first wearing the video see-thru HMD, subjects' pointing errors increased significantly along the spatial dimensions displaced (the y and z dimensions). Speed of performance on a manual task decreased by 43% compared to baseline performance. Pointing accuracy improved by about a 1/3 as subjects adapted to the sensory rearrangement but did not reach baseline performance. When subjects removed the see-thru HMD there was evidence that their hand-eye coordination had been altered by the see-thru HMD. Negative aftereffects were observed in the form of greater errors in pointing accuracy compared to baseline. Although these effects are temporary, the results may have serious practical implications for the use of see-thru HMDs by user populations who depend on accurate hand-eye coordination such as surgeons.","PeriodicalId":199941,"journal":{"name":"Proceedings Virtual Reality Annual International Symposium '95","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116878452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 75

Integration of the Rutgers Master II in a virtual reality simulation Rutgers Master II在虚拟现实仿真中的集成

Proceedings Virtual Reality Annual International Symposium '95 Pub Date : 1995-03-11 DOI: 10.1109/VRAIS.1995.512496

Daniel Gomez, G. Burdea, N. Langrana

引用次数: 63

Intelligent assistance for intravascular tele-surgery and experiments on virtual simulator 血管内远程手术的智能辅助及虚拟模拟器实验

Proceedings Virtual Reality Annual International Symposium '95 Pub Date : 1995-03-11 DOI: 10.1109/VRAIS.1995.512485

F. Arai, Masahiro Ito, T. Fukuda, M. Negoro, T. Naito

引用次数: 7