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Proceedings IEEE Virtual Reality (Cat. No. 99CB36316)最新文献

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Effects of network characteristics on human performance in a collaborative virtual environment 协同虚拟环境中网络特征对人的表现的影响
Proceedings IEEE Virtual Reality (Cat. No. 99CB36316) Pub Date : 1999-03-13 DOI: 10.1109/VR.1999.756940
K. S. Park, R. Kenyon
{"title":"Effects of network characteristics on human performance in a collaborative virtual environment","authors":"K. S. Park, R. Kenyon","doi":"10.1109/VR.1999.756940","DOIUrl":"https://doi.org/10.1109/VR.1999.756940","url":null,"abstract":"We assessed the effects of network latency and jitter on a cooperative teleoperation task in a collaborative virtual environment. Two remote partners worked together to manipulate shared virtual objects over a network. The task was to minimize the time to transfer a ring through one of four paths with the least number of collisions. The performance of human subjects was measured and analyzed quantitatively as a function of network latency: 10 and 200 msec delays with and without jitter. Jitter had the greatest impact on coordination performance when the latency was high and the task was difficult. These results are discussed in light of current and future CVE tasks.","PeriodicalId":175913,"journal":{"name":"Proceedings IEEE Virtual Reality (Cat. No. 99CB36316)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131932620","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: 251
Hybrid inertial and vision tracking for augmented reality registration 用于增强现实注册的混合惯性和视觉跟踪
Proceedings IEEE Virtual Reality (Cat. No. 99CB36316) Pub Date : 1999-03-13 DOI: 10.1109/VR.1999.756960
Suya You, U. Neumann, Ronald T. Azuma
{"title":"Hybrid inertial and vision tracking for augmented reality registration","authors":"Suya You, U. Neumann, Ronald T. Azuma","doi":"10.1109/VR.1999.756960","DOIUrl":"https://doi.org/10.1109/VR.1999.756960","url":null,"abstract":"The biggest single obstacle to building effective augmented reality (AR) systems is the lack of accurate wide-area sensors for trackers that report the locations and orientations of objects in an environment. Active (sensor-emitter) tracking technologies require powered-device installation. Limiting their use to prepared areas that are relatively free of natural or man-made interference sources. Vision-based systems can use passive landmarks, but they are more computationally demanding and often exhibit erroneous behavior due to occlusion or numerical instability. Inertial sensors are completely passive, requiring no external devices or targets, however, the drift rates in portable strapdown configurations are too great for practical use. In this paper, we present a hybrid approach to AR tracking that integrates inertial and vision-based technologies. We exploit the complementary nature of the two technologies to compensate for the weaknesses in each component. Analysis and experimental results demonstrate this system's effectiveness.","PeriodicalId":175913,"journal":{"name":"Proceedings IEEE Virtual Reality (Cat. No. 99CB36316)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128531760","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: 270
Map usage in virtual environments: orientation issues 虚拟环境中的地图使用:方向问题
Proceedings IEEE Virtual Reality (Cat. No. 99CB36316) Pub Date : 1999-03-13 DOI: 10.1109/VR.1999.756944
R. Darken, Helsin Cevik
{"title":"Map usage in virtual environments: orientation issues","authors":"R. Darken, Helsin Cevik","doi":"10.1109/VR.1999.756944","DOIUrl":"https://doi.org/10.1109/VR.1999.756944","url":null,"abstract":"Navigation tasks in large virtual environments often call for the use of a virtual map. However, all maps are not alike. Performance on navigation tasks in general has been shown to vary depending on the orientation of the map with respect to the user's frame of reference. This paper reports the results of an experiment investigating orientation issues of virtual maps for use during navigation tasks. Participants were given a virtual map in either a north-up or forward-up configuration. Performance on search tasks was measured in terms of search time and errors. Results indicate that targeted search tasks (tasks requiring only the egocentric reference frame) are best served by a forward-up alignment while primed and naive search tasks (tasks requiring information from the world reference frame) prefer a north-up alignment. Both types of maps are affected by the ability of user to perform mental rotations.","PeriodicalId":175913,"journal":{"name":"Proceedings IEEE Virtual Reality (Cat. No. 99CB36316)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125275677","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: 160
A method of selective stimulation to epidermal skin receptors for realistic touch feedback 一种选择性刺激表皮皮肤感受器以获得真实触觉反馈的方法
Proceedings IEEE Virtual Reality (Cat. No. 99CB36316) Pub Date : 1999-03-13 DOI: 10.1109/VR.1999.756962
N. Asamura, Nozomu Yokoyama, H. Shinoda
{"title":"A method of selective stimulation to epidermal skin receptors for realistic touch feedback","authors":"N. Asamura, Nozomu Yokoyama, H. Shinoda","doi":"10.1109/VR.1999.756962","DOIUrl":"https://doi.org/10.1109/VR.1999.756962","url":null,"abstract":"In this paper, we propose a device to stimulate only the superficial mechanoreceptors in the skin, and report the feeling caused by the stimulus. We describe the principle of the selective stimulation using air pressure, and we show the selectivity is more advanced than that of our previous system using magnet chips which was presented last year. We experimentally confirmed that a sparse array of the superficial stimulators could display realistic touch on objects including finer virtual textures than the stimulator spacing.","PeriodicalId":175913,"journal":{"name":"Proceedings IEEE Virtual Reality (Cat. No. 99CB36316)","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126456238","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: 42
Virtual flythrough over a voxel-based terrain 虚拟飞越基于体素的地形
Proceedings IEEE Virtual Reality (Cat. No. 99CB36316) Pub Date : 1999-03-13 DOI: 10.1109/VR.1999.756923
M. Wan, Huamin Qu, A. Kaufman
{"title":"Virtual flythrough over a voxel-based terrain","authors":"M. Wan, Huamin Qu, A. Kaufman","doi":"10.1109/VR.1999.756923","DOIUrl":"https://doi.org/10.1109/VR.1999.756923","url":null,"abstract":"A voxel-based terrain visualization system is presented with real-time performance on general-purpose graphics multiprocessor workstations. Ray casting of antialiased 3D volume terrain and subvoxel sampling in true 3D space produce high quality images. Based on this rendering algorithm, an interactive flythrough system for mission planning and flight simulation has been developed on an SGI Power Challenge and a virtual reality environment using a Responsive Workbench. Arbitrary stereoscopic perspective views over the terrain and a 6D input device are supported.","PeriodicalId":175913,"journal":{"name":"Proceedings IEEE Virtual Reality (Cat. No. 99CB36316)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134555532","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: 21
Third-person navigation of whole-planet terrain in a head-tracked stereoscopic environment 头部跟踪立体环境下全行星地形的第三人称导航
Proceedings IEEE Virtual Reality (Cat. No. 99CB36316) Pub Date : 1999-03-13 DOI: 10.1109/VR.1999.756945
Z. Wartell, W. Ribarsky, L. Hodges
{"title":"Third-person navigation of whole-planet terrain in a head-tracked stereoscopic environment","authors":"Z. Wartell, W. Ribarsky, L. Hodges","doi":"10.1109/VR.1999.756945","DOIUrl":"https://doi.org/10.1109/VR.1999.756945","url":null,"abstract":"Navigation and interaction in virtual environments that use stereoscopic head-tracked displays and have very large data sets present several challenges beyond those encountered with smaller data sets and simpler displays. First, zooming by approaching or retreating from a target must be augmented by integrating scale as a seventh degree of freedom. Second, in order to maintain good stereoscopic imagery, the interface must: maintain stereo image pairs that the user perceives as a single 3D image, minimize loss of perceived depth since stereoscopic imagery cannot properly occlude the screen's frame, provide maximum depth information, and place objects at distances where they are best manipulated. Finally, the navigation interface must work when the environment is displayed at any scale. This paper addresses these problems for god's-eye-view or third person navigation of a specific large-scale virtual environment: a high-resolution terrain database covering an entire planet.","PeriodicalId":175913,"journal":{"name":"Proceedings IEEE Virtual Reality (Cat. No. 99CB36316)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132499644","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: 37
Concurrency control in CIAO CIAO中的并发控制
Proceedings IEEE Virtual Reality (Cat. No. 99CB36316) Pub Date : 1999-03-13 DOI: 10.1109/VR.1999.756919
U. Sung, Jae-Heon Yang, K. Wohn
{"title":"Concurrency control in CIAO","authors":"U. Sung, Jae-Heon Yang, K. Wohn","doi":"10.1109/VR.1999.756919","DOIUrl":"https://doi.org/10.1109/VR.1999.756919","url":null,"abstract":"This paper is concerned with the concurrency control for collaborative virtual environments. In particular, we describe how concurrent actions are coordinated in a multi-user, large-scale 3-D layout system CIAO. In contrast to many existing systems that sacrifice responsiveness in order to maintain consistency, CIAO achieves optimal response and notification time without compromising consistency. The optimal responsiveness is achieved by a new multicast-based, optimistic concurrency control mechanism. Even operations on a group of related objects do not entail any latency for concurrency control. We also present the multi-user interfaces of CIAO that provide some sense of isolation as well as rich awareness.","PeriodicalId":175913,"journal":{"name":"Proceedings IEEE Virtual Reality (Cat. No. 99CB36316)","volume":"254 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114938504","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: 46
An operator interface for a robot-mounted, 3D camera system: Project Pioneer 一个机器人安装的操作界面，3D相机系统:项目先锋
Proceedings IEEE Virtual Reality (Cat. No. 99CB36316) Pub Date : 1999-03-13 DOI: 10.1109/VR.1999.756943
F. Steele, G. Thomas, T. Blackmon
{"title":"An operator interface for a robot-mounted, 3D camera system: Project Pioneer","authors":"F. Steele, G. Thomas, T. Blackmon","doi":"10.1109/VR.1999.756943","DOIUrl":"https://doi.org/10.1109/VR.1999.756943","url":null,"abstract":"The purpose of Project Pioneer is to develop an exploratory robot capable of creating a three-dimensional photo-realistic map of the inside of the damaged Chernobyl nuclear reactor, measure the environmental and radioactive conditions, and collect samples of concrete from the physical structure to determine its mechanical stability. This paper describes the virtual reality interface for Pioneer's three-dimensional mapping system. This interface addresses a wide variety of technical challenges, including several that are unique to the hostile Chernobyl environment.","PeriodicalId":175913,"journal":{"name":"Proceedings IEEE Virtual Reality (Cat. No. 99CB36316)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131776420","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: 7
The Round Earth Project: deep learning in a collaborative virtual world 圆形地球项目:协作虚拟世界中的深度学习
Proceedings IEEE Virtual Reality (Cat. No. 99CB36316) Pub Date : 1999-03-13 DOI: 10.1109/VR.1999.756947
Andrew E. Johnson, T. Moher, S. Ohlsson, M. Gillingham
{"title":"The Round Earth Project: deep learning in a collaborative virtual world","authors":"Andrew E. Johnson, T. Moher, S. Ohlsson, M. Gillingham","doi":"10.1109/VR.1999.756947","DOIUrl":"https://doi.org/10.1109/VR.1999.756947","url":null,"abstract":"The Round Earth Project is investigating how virtual reality technology can be used to help teach concepts that are counter-intuitive to a learner's currently held mental model. Virtual reality can be used to provide an alternative cognitive starting point that does not carry the baggage of past experiences. In particular this paper describes our work in comparing two strategies for teaching young children that the Earth is spherical when their everyday experiences tell them it is flat.","PeriodicalId":175913,"journal":{"name":"Proceedings IEEE Virtual Reality (Cat. No. 99CB36316)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125211495","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: 37
Evacuation simulator for analysis of evacuees' decision in a ship under casualty 船舶伤亡情况下疏散人员决策分析的疏散模拟器
Proceedings IEEE Virtual Reality (Cat. No. 99CB36316) Pub Date : 1999-03-13 DOI: 10.1109/VR.1999.756932
F. Kaneko, Y. Ikemoto, Masaaki Fukumoto
{"title":"Evacuation simulator for analysis of evacuees' decision in a ship under casualty","authors":"F. Kaneko, Y. Ikemoto, Masaaki Fukumoto","doi":"10.1109/VR.1999.756932","DOIUrl":"https://doi.org/10.1109/VR.1999.756932","url":null,"abstract":"An evacuation simulator utilizing virtual reality is proposed as a tool for the analysis of human decisions of evacuation from a ship under casualty. The configuration of the simulator was determined and the prototype of the simulator was built. Further test experiments were carried out for checking the prototype. From the experiments, it becomes clear that the analysis method of evacuees' decisions using the evacuation simulator would be appropriate for the purpose.","PeriodicalId":175913,"journal":{"name":"Proceedings IEEE Virtual Reality (Cat. No. 99CB36316)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126792577","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: 1
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