2012 IEEE VR Workshop on Perceptual Illusions in Virtual Environments最新文献

Vertical illusory self-motion through haptic stimulation of the feet 通过脚的触觉刺激进行垂直的虚幻自我运动

2012 IEEE VR Workshop on Perceptual Illusions in Virtual Environments Pub Date : 2012-03-04 DOI: 10.1109/PIVE.2012.6229796

R. Nordahl, N. C. Nilsson, L. Turchet, S. Serafin

{"title":"Vertical illusory self-motion through haptic stimulation of the feet","authors":"R. Nordahl, N. C. Nilsson, L. Turchet, S. Serafin","doi":"10.1109/PIVE.2012.6229796","DOIUrl":"https://doi.org/10.1109/PIVE.2012.6229796","url":null,"abstract":"Circular and linear self-motion illusions induced through visual and auditory stimuli have been studied rather extensively. While the ability of haptic stimuli to augment such illusions has been investigated, the self-motion illusions which primarily are induced by stimulation of the haptic modality remain relatively unexplored. In this paper, we present an experiment performed with the intention of investigating whether it is possible to use haptic stimulation of the main supporting areas of the feet to induce vertical illusory self-motion on behalf of unrestrained participants during exposure to a virtual environment depicting an elevator. The experiment was based on a within-subjects design where all participants were subjected to identical visual and auditory stimuli. The participants experienced a total of four conditions. For three of the conditions a different signal was used to generate the haptic feedback while the final condition included no haptic feedback. Analysis of self-reports were used to assess the participants' experience of illusory self-motion. The results indicate that such illusions are indeed possible. Significant differences were found between the condition including no haptic feedback and the remaining three conditions.","PeriodicalId":289583,"journal":{"name":"2012 IEEE VR Workshop on Perceptual Illusions in Virtual Environments","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124978023","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

Learning special relativity energy laws using visio-haptic illusion 利用视触觉错觉学习狭义相对论能量定律

2012 IEEE VR Workshop on Perceptual Illusions in Virtual Environments Pub Date : 2012-03-04 DOI: 10.1109/PIVE.2012.6229794

Nicolas Ladevèze, T. Doat, E. Parizot, J. Vézien

{"title":"Learning special relativity energy laws using visio-haptic illusion","authors":"Nicolas Ladevèze, T. Doat, E. Parizot, J. Vézien","doi":"10.1109/PIVE.2012.6229794","DOIUrl":"https://doi.org/10.1109/PIVE.2012.6229794","url":null,"abstract":"Visual analysis of complex scientific simulation data often gain to be completed by an exploration with advanced Virtual Reality modalities as the haptic channel. But exploiting the haptic channel with a force-feedback device can be problematic when the profile of the forces to be conveyed to the user is inherently nonlinear. As application domain we are interested in learning relativity. Specifically, we focused our interest in studying the evolution of the kinetic energy of an object approaching the speed of the light. Indeed, the divergent value of momentum for a fast moving object is a difficult concept to understand for students in theoretical physics. In this didactic context, we propose to use a spring launcher based visuohaptic metaphor to allows a user to i) intuitively set the speed of objects in a relativistic framework and ii) access to the law beside the momentum value through this interactive experience. In this context, we imply that a user could interpret and remember an abstract mathematical concept by experiencing it in a VR simulation without having any knowledge and experience neither with haptic rendering nor with special relativity knowledge. In this paper, the contribution of visuo-haptic illusion and pseudo-haptic techniques is analysed with respect to a standard visual-haptic coupling. After formulating the laws of haptic control for this specific problem, a first evaluation is presented with preliminary results. These first results highlight the effectiveness of pseudo-haptic rendering technique used for the interaction design with a complex force profiles and its interpretation taking into account a didactic goal.","PeriodicalId":289583,"journal":{"name":"2012 IEEE VR Workshop on Perceptual Illusions in Virtual Environments","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124353499","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: 0

Differences in presence between healthy users and users with multiple sclerosis 健康用户和多发性硬化症用户之间存在的差异

2012 IEEE VR Workshop on Perceptual Illusions in Virtual Environments Pub Date : 2012-03-04 DOI: 10.1109/PIVE.2012.6229792

Rongkai Guo, J. Quarles

引用次数: 11

Visual perception of perspective distortions 视觉感知的视角扭曲

2012 IEEE VR Workshop on Perceptual Illusions in Virtual Environments Pub Date : 2012-03-04 DOI: 10.1109/PIVE.2012.6229798

Frank Steinicke, G. Bruder

{"title":"Visual perception of perspective distortions","authors":"Frank Steinicke, G. Bruder","doi":"10.1109/PIVE.2012.6229798","DOIUrl":"https://doi.org/10.1109/PIVE.2012.6229798","url":null,"abstract":"Virtual environments (VEs) provide sophisticated means to render a virtual three-dimensional space to a two-dimensional display surface by applying planar geometric projections. Iiron a realistic viewing condition the perspective applied for rendering should account for the observer's viewpoint relative to the image. As a result, an observer may not be able to distinguish between a rendering of a VE on a computer screen and a view “through” the screen at an identical real-world scene. Little effort has been made to identify perspective projections which cause human observers to judge them to be realistic. In this paper we analyze observers' awareness of perspective distortions of virtual objects displayed on a monoscopic computer screen. These distortions warp the virtual object and make it differ significantly from how the object would look in reality. We describe psychophysical experiments that explore the subject's ability to discriminate between different perspective projections and identify projections that most closely match an equivalent real scene. Our results confirm that the field of view used for perspective rendering should match the actual visual angle of the display to provide users with a realistic view. However, we found that slight changes of the field of view in the range of 10-20% for our test environment did not cause a distorted mental image of the observed scene.","PeriodicalId":289583,"journal":{"name":"2012 IEEE VR Workshop on Perceptual Illusions in Virtual Environments","volume":"17 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123271057","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

Adaptive redirected walking in a virtual world 虚拟世界中的自适应重定向行走

2012 IEEE VR Workshop on Perceptual Illusions in Virtual Environments Pub Date : 2012-03-04 DOI: 10.1109/PIVE.2012.6229795

Jack Goldfeather

引用次数: 4

Object deformation illusion on a tactilely enhanced large tabletop device 在触觉增强的大型桌面设备上的物体变形错觉

2012 IEEE VR Workshop on Perceptual Illusions in Virtual Environments Pub Date : 2012-03-04 DOI: 10.1109/PIVE.2012.6229797

A. Lefebvre, A. Pusch

引用次数: 1

Applying “out of the body” funneling and saltation to interaction with virtual and augmented objects 将“出体”漏斗和跳跃应用于与虚拟和增强对象的交互

2012 IEEE VR Workshop on Perceptual Illusions in Virtual Environments Pub Date : 2012-03-04 DOI: 10.1109/PIVE.2012.6229793

Jaedong Lee, Youngsun Kim, Euijai Ahn, G. J. Kim

引用次数: 6