2010 IEEE Virtual Reality Conference (VR)最新文献

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Auto-calibration of cylindrical multi-projector systems 自动校准圆柱形多投影仪系统
2010 IEEE Virtual Reality Conference (VR) Pub Date : 2010-03-20 DOI: 10.1109/VR.2010.5444797
B. Sajadi, A. Majumder
{"title":"Auto-calibration of cylindrical multi-projector systems","authors":"B. Sajadi, A. Majumder","doi":"10.1109/VR.2010.5444797","DOIUrl":"https://doi.org/10.1109/VR.2010.5444797","url":null,"abstract":"In this paper we present a novel technique to calibrate multiple casually aligned projectors on a fiducial-free cylindrical curved surface using a single camera. We impose two priors to the cylindrical display: (a) cylinder is a vertically extruded surface; and (b) the aspect ratio of the rectangle formed by the four corners of the screen is known. Using these priors, we can estimate the display's 3D surface geometry and camera extrinsic parameters using a single image without any explicit display to camera correspondences. Using the estimated camera and display properties, we design a novel deterministic algorithm to recover the intrinsic and extrinsic parameters of each projector using a single projected pattern seen by the camera which is then used to register the images on the display from any arbitrary viewpoint making it appropriate for virtual reality systems. Finally, our method can be extended easily to handle sharp corners — making it suitable for the common CAVE like VR setup. To the best of our knowledge, this is the first method that can achieve accurate geometric auto-calibration of multiple projectors on a cylindrical display without performing an extensive stereo reconstruction.","PeriodicalId":151060,"journal":{"name":"2010 IEEE Virtual Reality Conference (VR)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131696283","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: 49
VirtualizeMe: Real-time avatar creation for Tele-Immersion environments VirtualizeMe:远程沉浸环境的实时头像创建
2010 IEEE Virtual Reality Conference (VR) Pub Date : 2010-03-20 DOI: 10.1109/VR.2010.5444767
Daniel Knoblauch, P. Font, F. Kuester
{"title":"VirtualizeMe: Real-time avatar creation for Tele-Immersion environments","authors":"Daniel Knoblauch, P. Font, F. Kuester","doi":"10.1109/VR.2010.5444767","DOIUrl":"https://doi.org/10.1109/VR.2010.5444767","url":null,"abstract":"VirtualizeMe introduces a new design for a fully immersive Tele-Immersion system for remote collaboration and virtual world interaction. This system introduces a new avatar creation approach full-filling four main attributes: high resolution, scalability, flexibility and affordability. This is achieved by a total separation of reconstruction and rendering and exploiting the capabilities of modern graphic cards. The high resolution is achieved by using as much of the input information as possible through lossless compression of the input data and introducing a focused volumetric visual hull reconstruction. The resulting avatar allows eye-to-eye collaboration for remote users. The interaction with the virtual world is facilitated by the volumetric avatar model and allows a fully immersive system. This paper shows a proof of concept based on publicly available pre-recorded data to allow easier comparison.","PeriodicalId":151060,"journal":{"name":"2010 IEEE Virtual Reality Conference (VR)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128071022","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
Design and evaluation of a haptic tactile actuator to simulate rough textures 模拟粗糙纹理的触觉致动器设计与评价
2010 IEEE Virtual Reality Conference (VR) Pub Date : 2010-03-20 DOI: 10.1109/VR.2010.5444754
R. Samra, David W. L. Wang, M. Zadeh
{"title":"Design and evaluation of a haptic tactile actuator to simulate rough textures","authors":"R. Samra, David W. L. Wang, M. Zadeh","doi":"10.1109/VR.2010.5444754","DOIUrl":"https://doi.org/10.1109/VR.2010.5444754","url":null,"abstract":"This paper presents the design of a tactile actuator that creates rough textures directly at the fingertip of the user. The purpose of the tactile actuator is to convey varying magnitudes of surface roughness to the users. The stimulus is created by a rotating spiral brush. The results of a psychophysical experiment show that the speed of the brush is directly related to roughness perception. However, there are two groups of users that perceive roughness in an opposite manner from each other.","PeriodicalId":151060,"journal":{"name":"2010 IEEE Virtual Reality Conference (VR)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130543253","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: 5
Markerless tracking using Polar Correlation of camera optical flow 基于相机光流极相关的无标记跟踪
2010 IEEE Virtual Reality Conference (VR) Pub Date : 2010-03-20 DOI: 10.1109/VR.2010.5444784
Prince Gupta, N. Lobo, J. Laviola
{"title":"Markerless tracking using Polar Correlation of camera optical flow","authors":"Prince Gupta, N. Lobo, J. Laviola","doi":"10.1109/VR.2010.5444784","DOIUrl":"https://doi.org/10.1109/VR.2010.5444784","url":null,"abstract":"We present a novel, real-time, markerless vision-based tracking system, employing a rigid orthogonal configuration of two pairs of opposing cameras. Our system uses optical flow over sparse features to overcome the limitation of vision-based systems that require markers or a pre-loaded model of the physical environment. We show how opposing cameras enable cancellation of common components of optical flow leading to an efficient tracking algorithm. Experiments comparing our device with an electromagnetic tracker show that its average tracking accuracy is 80% over 185 frames, and it is able to track large range motions even in outdoor settings.","PeriodicalId":151060,"journal":{"name":"2010 IEEE Virtual Reality Conference (VR)","volume":"165 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131923493","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: 5
Real-time panoramic mapping and tracking on mobile phones 实时全景地图和跟踪移动电话
2010 IEEE Virtual Reality Conference (VR) Pub Date : 2010-03-20 DOI: 10.1109/VR.2010.5444786
Daniel Wagner, Alessandro Mulloni, T. Langlotz, D. Schmalstieg
{"title":"Real-time panoramic mapping and tracking on mobile phones","authors":"Daniel Wagner, Alessandro Mulloni, T. Langlotz, D. Schmalstieg","doi":"10.1109/VR.2010.5444786","DOIUrl":"https://doi.org/10.1109/VR.2010.5444786","url":null,"abstract":"We present a novel method for the real-time creation and tracking of panoramic maps on mobile phones. The maps generated with this technique are visually appealing, very accurate and allow drift-free rotation tracking. This method runs on mobile phones at 30Hz and has applications in the creation of panoramic images for offline browsing, for visual enhancements through environment mapping and for outdoor Augmented Reality on mobile phones.","PeriodicalId":151060,"journal":{"name":"2010 IEEE Virtual Reality Conference (VR)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129664888","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: 147
Buttonless clicking: Intuitive select and pick-release through gesture analysis 无按钮点击:直观的选择和选择,通过手势分析释放
2010 IEEE Virtual Reality Conference (VR) Pub Date : 2010-03-20 DOI: 10.1109/VR.2010.5444810
A. Choumane, Géry Casiez, L. Grisoni
{"title":"Buttonless clicking: Intuitive select and pick-release through gesture analysis","authors":"A. Choumane, Géry Casiez, L. Grisoni","doi":"10.1109/VR.2010.5444810","DOIUrl":"https://doi.org/10.1109/VR.2010.5444810","url":null,"abstract":"Clicking is a key feature any interaction input system needs to provide. In the case of 3D input devices, such a feature is often difficult to provide (e.g. vision-based, or tracking systems for free-hand interaction do not natively provide any button). In this work, we show that it is actually possible to build an application that provides two classical interaction tasks (selection, and pick-release), without any button-like feature. Our method is based on trajectory and kinematic gesture analysis. In a preliminary study we exhibit the principle of the method. Then, we detail an algorithm to discriminate selection, pick and release tasks using kinematic criteria. We present a controlled experiment that validates our method with an average success rate equal to 90.1% across all conditions.","PeriodicalId":151060,"journal":{"name":"2010 IEEE Virtual Reality Conference (VR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124716186","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
The contribution of real-time mirror reflections of motor actions on virtual body ownership in an immersive virtual environment 沉浸式虚拟环境中运动动作的实时镜像反射对虚拟身体所有权的贡献
2010 IEEE Virtual Reality Conference (VR) Pub Date : 2010-03-01 DOI: 10.1109/VR.2010.5444805
Mar González-Franco, D. Pérez-Marcos, B. Spanlang, M. Slater
{"title":"The contribution of real-time mirror reflections of motor actions on virtual body ownership in an immersive virtual environment","authors":"Mar González-Franco, D. Pérez-Marcos, B. Spanlang, M. Slater","doi":"10.1109/VR.2010.5444805","DOIUrl":"https://doi.org/10.1109/VR.2010.5444805","url":null,"abstract":"This paper reports an experiment that investigated people's body ownership of an avatar that was observed in a virtual mirror. Twenty subjects were recruited in a within-groups study where 10 first experienced a virtual character that synchronously reflected their upper-body movements as seen in a virtual mirror, and then an asynchronous condition where the mirror avatar displayed prerecorded actions, unrelated to those of the participant. The other 10 subjects experienced the conditions in the opposite order. In both conditions the participant could carry out actions that led to elevation above ground level, as seen from their first person perspective and correspondingly in the mirror. A rotating virtual fan eventually descended to 2 m above the ground. The hypothesis was that synchronous mirror reflection would result in higher subjective sense of ownership. A questionnaire analysis showed that the body ownership illusion was significantly greater for the synchronous than asynchronous condition. Additionally participants in the synchronous condition avoided collision with the descending fan significantly more often than those in the asynchronous condition. The results of this experiment are put into context within similar experiments on multisensory correlation and body ownership within cognitive neuroscience.","PeriodicalId":151060,"journal":{"name":"2010 IEEE Virtual Reality Conference (VR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123185381","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: 204
The role of latency in the validity of AR simulation 延迟在AR仿真有效性中的作用
2010 IEEE Virtual Reality Conference (VR) Pub Date : 2010-03-01 DOI: 10.1109/VR.2010.5444820
Cha Lee, Scott Bonebrake, Tobias Höllerer, D. Bowman
{"title":"The role of latency in the validity of AR simulation","authors":"Cha Lee, Scott Bonebrake, Tobias Höllerer, D. Bowman","doi":"10.1109/VR.2010.5444820","DOIUrl":"https://doi.org/10.1109/VR.2010.5444820","url":null,"abstract":"It is extremely challenging to run controlled studies comparing multiple Augmented Reality (AR) systems. We use an AR simulation approach, in which a Virtual Reality (VR) system is used to simulate multiple AR systems. To investigate the validity of this approach, in our first experiment we carefully replicated a well-known study by Ellis et al. using our simulator, obtaining comparable results. We include a discussion on general issues we encountered with replicating a prior study. In our second experiment further exploring the validity of AR simulation, we investigated the effects of simulator latency on the results from experiments conducted in an AR simulator. We found simulator latency to have a significant effect on 3D tracing, however there was no interaction between simulator latency and artificial latency. Based on the results from these two experiments, we conclude that simulator latency is not inconsequential in determining task performance. Simulating visual registration is not sufficient to simulate the overall perception of registration errors in an AR system. We also need to keep simulator latency at a minimum. We discuss the impact of these results on the use of the AR simulation approach.","PeriodicalId":151060,"journal":{"name":"2010 IEEE Virtual Reality Conference (VR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116298021","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: 62
Egocentric space-distorting visualizations for rapid environment exploration in mobile mixed reality 移动混合现实中快速环境探索的以自我为中心的空间扭曲可视化
2010 IEEE Virtual Reality Conference (VR) Pub Date : 2009-10-19 DOI: 10.1109/ISMAR.2009.5336461
C. Sandor, Andrew Cunningham, U. Eck, Don Urquhart, G. Jarvis, Arindam Dey, S. Barbier, M. Marner, Sang Rhee
{"title":"Egocentric space-distorting visualizations for rapid environment exploration in mobile mixed reality","authors":"C. Sandor, Andrew Cunningham, U. Eck, Don Urquhart, G. Jarvis, Arindam Dey, S. Barbier, M. Marner, Sang Rhee","doi":"10.1109/ISMAR.2009.5336461","DOIUrl":"https://doi.org/10.1109/ISMAR.2009.5336461","url":null,"abstract":"Most of today's mobile internet devices contain facilities to display maps of the user's surroundings with points of interest embedded into the map. Other researchers have already explored complementary, egocentric visualizations of these points of interest using mobile mixed reality. Being able to perceive the point of interest in detail within the user's current context is desirable, however, it is challenging to display off-screen or occluded points of interest. We have designed and implemented space-distorting visualizations to address these situations. While this class of visualizations has been extensively studied in information visualization, we are not aware of any attempts to apply them to augmented or mixed reality. Based on the informal user feedback that we have gathered, we have performed several iterations on our visualizations. We hope that our initial results can inspire other researchers to also investigate space-distorting visualizations for mixed and augmented reality.","PeriodicalId":151060,"journal":{"name":"2010 IEEE Virtual Reality Conference (VR)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134094896","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
Second Skin: Motion capture with actuated feedback for motor learning 第二层皮肤:动作捕捉与运动学习的驱动反馈
2010 IEEE Virtual Reality Conference (VR) Pub Date : 2009-04-04 DOI: 10.1145/1520340.1520696
Dennis R. Miaw, R. Raskar
{"title":"Second Skin: Motion capture with actuated feedback for motor learning","authors":"Dennis R. Miaw, R. Raskar","doi":"10.1145/1520340.1520696","DOIUrl":"https://doi.org/10.1145/1520340.1520696","url":null,"abstract":"Second Skin aims to combine three-dimensional motion tracking with real-time tactile feedback for the purpose of improving a user's motor-learning ability. Body and limb movements are tracked in 3D as a user performs an action, and the user is given automatic, real-time tactile feedback to aid in the correction of movement and position errors. The key areas of the system involve the development of a robust optical motion tracking system that can be used in a wide range of environments and lighting conditions, and an effective tactile feedback method capable of delivering information to the user to indicate how to correct errors in body and limb position. Since a number of components of the motion tracking and tactile feedback systems must be bound to the user's body, another important goal is the design of a lightweight and minimally inhibitive wearable suit to contain all of these elements.","PeriodicalId":151060,"journal":{"name":"2010 IEEE Virtual Reality Conference (VR)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124208790","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: 15
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