Proceedings of the 28th ACM Symposium on Virtual Reality Software and Technology最新文献_第9页

Standing Balance Improvement Using Vibrotactile Feedback in Virtual Reality 在虚拟现实中使用振动触觉反馈改善站立平衡

Proceedings of the 28th ACM Symposium on Virtual Reality Software and Technology Pub Date : 2022-08-18 DOI: 10.1145/3562939.3565638

M. Mahmud, Michael Stewart, Alberto Cordova, J. Quarles

{"title":"Standing Balance Improvement Using Vibrotactile Feedback in Virtual Reality","authors":"M. Mahmud, Michael Stewart, Alberto Cordova, J. Quarles","doi":"10.1145/3562939.3565638","DOIUrl":"https://doi.org/10.1145/3562939.3565638","url":null,"abstract":"Virtual Reality (VR) users often encounter postural instability, i.e., balance issues, which can be a significant impediment to universal usability and accessibility, particularly for those with balance impairments. Prior research has validated imbalance issues, but little effort has been made to mitigate them. We recruited 39 participants (with balance impairments: 18, without balance impairments: 21) to examine the effect of various vibrotactile feedback techniques on balance in virtual reality, specifically spatial vibrotactile, static vibrotactile, rhythmic vibrotactile, and vibrotactile feedback mapped to the center of pressure (CoP). Participants completed standing visual exploration and standing reach and grasp tasks. According to within-subject results, each vibrotactile feedback enhanced balance in VR significantly (p <.001) for those with and without balance impairments. Spatial and CoP vibrotactile feedback enhanced balance significantly more (p <.001) than other vibrotactile feedback. This study presents strategies that might be used in future virtual environments to enhance standing balance and bring VR closer to universal usage.","PeriodicalId":134843,"journal":{"name":"Proceedings of the 28th ACM Symposium on Virtual Reality Software and Technology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122229655","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: 4

The Relative Importance of Depth Cues and Semantic Edges for Indoor Mobility Using Simulated Prosthetic Vision in Immersive Virtual Reality 深度线索和语义边缘对沉浸式虚拟现实中使用模拟假肢视觉的室内移动的相对重要性

Proceedings of the 28th ACM Symposium on Virtual Reality Software and Technology Pub Date : 2022-08-09 DOI: 10.1145/3562939.3565620

Alex Rasla, M. Beyeler

{"title":"The Relative Importance of Depth Cues and Semantic Edges for Indoor Mobility Using Simulated Prosthetic Vision in Immersive Virtual Reality","authors":"Alex Rasla, M. Beyeler","doi":"10.1145/3562939.3565620","DOIUrl":"https://doi.org/10.1145/3562939.3565620","url":null,"abstract":"Visual neuroprostheses (bionic eyes) have the potential to treat degenerative eye diseases that often result in low vision or complete blindness. These devices rely on an external camera to capture the visual scene, which is then translated frame-by-frame into an electrical stimulation pattern that is sent to the implant in the eye. To highlight more meaningful information in the scene, recent studies have tested the effectiveness of deep-learning based computer vision techniques, such as depth estimation to highlight nearby obstacles (DepthOnly mode) and semantic edge detection to outline important objects in the scene (EdgesOnly mode). However, nobody has yet attempted to combine the two, either by presenting them together (EdgesAndDepth) or by giving the user the ability to flexibly switch between them (EdgesOrDepth). Here, we used a neurobiologically inspired model of simulated prosthetic vision (SPV) in an immersive virtual reality (VR) environment to test the relative importance of semantic edges and relative depth cues to support the ability to avoid obstacles and identify objects. We found that participants were significantly better at avoiding obstacles using depth-based cues as opposed to relying on edge information alone, and that roughly half the participants preferred the flexibility to switch between modes (EdgesOrDepth). This study highlights the relative importance of depth cues for SPV mobility and is an important first step towards a visual neuroprosthesis that uses computer vision to improve a user’s scene understanding.","PeriodicalId":134843,"journal":{"name":"Proceedings of the 28th ACM Symposium on Virtual Reality Software and Technology","volume":"233 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123986859","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

Eliciting Multimodal Gesture+Speech Interactions in a Multi-Object Augmented Reality Environment 在多对象增强现实环境中引出多模态手势+语音交互

Proceedings of the 28th ACM Symposium on Virtual Reality Software and Technology Pub Date : 2022-07-25 DOI: 10.1145/3562939.3565637

Xiaoyan Zhou, Adam S. Williams, F. Ortega

引用次数: 0

Timeline Design Space for Immersive Exploration of Time-Varying Spatial 3D Data 时变空间三维数据沉浸式探索的时间线设计空间

Proceedings of the 28th ACM Symposium on Virtual Reality Software and Technology Pub Date : 2022-06-20 DOI: 10.1145/3562939.3565612

Gwendal Fouché, Ferran Argelaguet Sanz, E. Faure, C. Kervrann

{"title":"Timeline Design Space for Immersive Exploration of Time-Varying Spatial 3D Data","authors":"Gwendal Fouché, Ferran Argelaguet Sanz, E. Faure, C. Kervrann","doi":"10.1145/3562939.3565612","DOIUrl":"https://doi.org/10.1145/3562939.3565612","url":null,"abstract":"Timelines are common visualizations to represent and manipulate temporal data. However, timeline visualizations rarely consider spatio-temporal 3D data (e.g. mesh or volumetric models) directly. In this paper, leveraging the increased workspace and 3D interaction capabilities of virtual reality (VR), we first propose a timeline design space for 3D temporal data extending the timeline design space proposed by Brehmer et al. [7]. The proposed design space adapts the scale, layout and representation dimensions to account for the depth dimension and how the 3D temporal data can be partitioned and structured. Moreover, an additional dimension is introduced, the support, which further characterizes the 3D dimension of the visualization. The design space is complemented by discussing the interaction methods required for the efficient visualization of 3D timelines in VR. Secondly, we evaluate the benefits of 3D timelines through a formal evaluation (n=21). Taken together, our results showed that time-related tasks can be achieved more comfortably using timelines, and more efficiently for specific tasks requiring the analysis of the surrounding temporal context. Finally, we illustrate the use of 3D timelines with a use-case on morphogenetic analysis in which domain experts in cell imaging were involved in the design and evaluation process.","PeriodicalId":134843,"journal":{"name":"Proceedings of the 28th ACM Symposium on Virtual Reality Software and Technology","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130029308","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: 9