Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology最新文献_第5页

Immersive remote grasping: realtime gripper control by a heterogenous robot control system 沉浸式远程抓取:异质机器人控制系统实时抓取器控制

Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology Pub Date : 2016-11-02 DOI: 10.1145/2993369.2996345

D. Krupke, Lasse Einig, E. Langbehn, Jianwei Zhang, Frank Steinicke

引用次数: 11

Localized color correction for optical see-through displays via weighted linear regression 基于加权线性回归的光学透明显示器局部色彩校正

Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology Pub Date : 2016-11-02 DOI: 10.1145/2993369.2993406

Jae-Woo Kim, Kang-Kyu Lee, Je-Ho Ryu, Jong-Ok Kim

引用次数: 6

Industrial maintenance with augmented reality: two case studies 使用增强现实的工业维护:两个案例研究

Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology Pub Date : 2016-11-02 DOI: 10.1145/2993369.2996305

D. Aschenbrenner, Marc Erich Latoschik, K. Schilling

引用次数: 9

Towards comparable evaluation methods and measures for timing behavior of virtual reality systems 探讨虚拟现实系统时序行为的可比性评价方法与测度

Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology Pub Date : 2016-11-02 DOI: 10.1145/2993369.2993402

Jan-Philipp Stauffert, Florian Niebling, Marc Erich Latoschik

引用次数: 17

A real-time x-ray mobile application using augmented reality and google street view 使用增强现实和谷歌街景的实时x射线移动应用程序

Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology Pub Date : 2016-11-02 DOI: 10.1145/2993369.2993370

Luís Fernando Maia Silva, Windson Viana, Fernando A. M. Trinta

{"title":"A real-time x-ray mobile application using augmented reality and google street view","authors":"Luís Fernando Maia Silva, Windson Viana, Fernando A. M. Trinta","doi":"10.1145/2993369.2993370","DOIUrl":"https://doi.org/10.1145/2993369.2993370","url":null,"abstract":"X-ray view can be defined as the ability one has to see through real surfaces. Although this skill is often associated with superheroes and medical examination, there are several researches conducted to employ X-ray view in numerous applications. However, the generation of X-ray visualization includes numerous challenges regarding occlusion, realistic appearance, and depth perception. In this paper, we present a mobile application that uses Augmented Reality and Google Street View to allow users experience real-time X-ray vision. The proposed application was designed to enhance previous Augmented Reality X-ray systems, by introducing a silhouette computation method to provide visual context from the occluder and a perspective estimation system that improves the projection of occluded images into the real scene. Additionally, we implemented two usability studies to assess qualitative aspects of both silhouettes and perspective estimation to generate better X-ray effects. Results indicate good acceptance of the novel X-ray visualization method and a great usability score on the SUS scale for the mobile application.","PeriodicalId":396801,"journal":{"name":"Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129088370","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: 2

The impact of latency on perceptual judgments and motor performance in closed-loop interaction in virtual reality 虚拟现实闭环交互中延迟对知觉判断和运动表现的影响

Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology Pub Date : 2016-11-02 DOI: 10.1145/2993369.2993381

T. Waltemate, I. Senna, Felix Hülsmann, M. Rohde, S. Kopp, M. Ernst, M. Botsch

{"title":"The impact of latency on perceptual judgments and motor performance in closed-loop interaction in virtual reality","authors":"T. Waltemate, I. Senna, Felix Hülsmann, M. Rohde, S. Kopp, M. Ernst, M. Botsch","doi":"10.1145/2993369.2993381","DOIUrl":"https://doi.org/10.1145/2993369.2993381","url":null,"abstract":"Latency between a user's movement and visual feedback is inevitable in every Virtual Reality application, as signal transmission and processing take time. Unfortunately, a high end-to-end latency impairs perception and motor performance. While it is possible to reduce feedback delay to tens of milliseconds, these delays will never completely vanish. Currently, there is a gap in literature regarding the impact of feedback delays on perception and motor performance as well as on their interplay in virtual environments employing full-body avatars. With the present study at hand, we address this gap by performing a systematic investigation of different levels of delay across a variety of perceptual and motor tasks during full-body action inside a Cave Automatic Virtual Environment. We presented participants with their virtual mirror image, which responded to their actions with feedback delays ranging from 45 to 350 ms. We measured the impact of these delays on motor performance, sense of agency, sense of body ownership and simultaneity perception by means of psychophysical procedures. Furthermore, we looked at interaction effects between these aspects to identify possible dependencies. The results show that motor performance and simultaneity perception are affected by latencies above 75 ms. Although sense of agency and body ownership only decline at a latency higher than 125 ms, and deteriorate for a latency greater than 300 ms, they do not break down completely even at the highest tested delay. Interestingly, participants perceptually infer the presence of delays more from their motor error in the task than from the actual level of delay. Whether or not participants notice a delay in a virtual environment might therefore depend on the motor task and their performance rather than on the actual delay.","PeriodicalId":396801,"journal":{"name":"Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121133200","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: 81

A novel magnetic levitation haptic device for augmentation of tissue stiffness perception 一种增强组织刚度感知的新型磁悬浮触觉装置

Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology Pub Date : 2016-11-02 DOI: 10.1145/2993369.2993377

Qianqian Tong, Zhiyong Yuan, Mianlun Zheng, Weixu Zhu, Guian Zhang, Xiangyun Liao

{"title":"A novel magnetic levitation haptic device for augmentation of tissue stiffness perception","authors":"Qianqian Tong, Zhiyong Yuan, Mianlun Zheng, Weixu Zhu, Guian Zhang, Xiangyun Liao","doi":"10.1145/2993369.2993377","DOIUrl":"https://doi.org/10.1145/2993369.2993377","url":null,"abstract":"In medical training especially in palpation surgery, it is important for surgeons to perceive tissue stiffness. We design a novel magnetic levitation haptic device based on electromagnetic principles to enhance the perception of tissue stiffness in a virtual environment. The user can directly sense virtual tissues by moving a magnetic stylus in the magnetic field generated by the coil array of our device. To fully use the effective magnetic field, we devise an adjustable coil array and provide a reasonable explanation for such design. Moreover, we design a control interface circuit and present a self-adaptive fuzzy proportion integration differentiation (PID) algorithm to precisely control the coil current. The quantitative experiment shows that the experimental and simulation data of our device are consistent and the proposed control algorithm contributes to increasing the accuracy of tissue stiffness perception. In qualitative experiment, we recruit 22 participants to distinguish tissues of different stiffness and detect tissue abnormality. The experimental results demonstrate that our magnetic levitation haptic device can provide accurate perception of tissue stiffness.","PeriodicalId":396801,"journal":{"name":"Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127263616","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: 3

Depth information from binocular disparity and familiar size is combined when reaching towards virtual objects 当到达虚拟物体时，来自双眼视差和熟悉尺寸的深度信息结合在一起

Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology Pub Date : 2016-11-02 DOI: 10.1145/2993369.2993408

Rebekka S. Schubert, Mathias Müller, S. Pannasch, J. Helmert

引用次数: 4

Vista widgets: a framework for designing 3D user interfaces from reusable interaction building blocks Vista widgets:一个从可重用交互构建块设计3D用户界面的框架

Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology Pub Date : 2016-11-02 DOI: 10.1145/2993369.2993382

Sascha Gebhardt, Till Petersen-Krau, S. Pick, Dominik Rausch, Christian Nowke, T. Knott, Patric Schmitz, Daniel Zielasko, B. Hentschel, T. Kuhlen

{"title":"Vista widgets: a framework for designing 3D user interfaces from reusable interaction building blocks","authors":"Sascha Gebhardt, Till Petersen-Krau, S. Pick, Dominik Rausch, Christian Nowke, T. Knott, Patric Schmitz, Daniel Zielasko, B. Hentschel, T. Kuhlen","doi":"10.1145/2993369.2993382","DOIUrl":"https://doi.org/10.1145/2993369.2993382","url":null,"abstract":"Virtual Reality (VR) has been an active field of research for several decades, with 3D interaction and 3D User Interfaces (UIs) as important sub-disciplines. However, the development of 3D interaction techniques and in particular combining several of them to construct complex and usable 3D UIs remains challenging, especially in a VR context. In addition, there is currently only limited reusable software for implementing such techniques in comparison to traditional 2D UIs. To overcome this issue, we present ViSTA Widgets, a software framework for creating 3D UIs for immersive virtual environments. It extends the ViSTA VR framework by providing functionality to create multi-device, multi-focus-strategy interaction building blocks and means to easily combine them into complex 3D UIs. This is realized by introducing a device abstraction layer along sophisticated focus management and functionality to create novel 3D interaction techniques and 3D widgets. We present the framework and illustrate its effectiveness with code and application examples accompanied by performance evaluations.","PeriodicalId":396801,"journal":{"name":"Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126101121","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

Provision of automated step-by-step procedural guidance in virtual reality surgery simulation 在虚拟现实手术模拟中提供自动分步程序指导

Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology Pub Date : 2016-11-02 DOI: 10.1145/2993369.2993397

S. Wijewickrema, Yun Zhou, J. Bailey, G. Kennedy, S. O'Leary

{"title":"Provision of automated step-by-step procedural guidance in virtual reality surgery simulation","authors":"S. Wijewickrema, Yun Zhou, J. Bailey, G. Kennedy, S. O'Leary","doi":"10.1145/2993369.2993397","DOIUrl":"https://doi.org/10.1145/2993369.2993397","url":null,"abstract":"One of the roadblocks to the wide-spread use of virtual reality simulation as a surgical training platform is the need for expert supervision during training to ensure proper skill acquisition. To fully utilize the capacity of virtual reality in surgical training, it is imperative that the guidance process is automated. In this paper, we discuss a method of providing one aspect of performance guidance: advice on the steps of a surgery or procedural guidance. We manually segment the surgical trajectory of an expert surgeon into steps and present them one at a time to guide trainees through a surgical procedure. We show, using a randomized controlled trial, that this form of guidance is effective in moving trainee behavior towards an expert ideal. To support practice variation and different surgical styles adopted by experts, separate guidance templates have to be generated. To enable this, we introduce a method of automatically segmenting a surgical trajectory into steps. We propose a pre-processing step that uses domain knowledge specific to our application to reduce the solution space. We show how this can be incorporated into existing trajectory segmentation methods, as well as a greedy approach that we propose. We compare this segmentation method to existing techniques and show that it is accurate and efficient.","PeriodicalId":396801,"journal":{"name":"Proceedings of the 22nd ACM Conference on Virtual Reality Software and Technology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127570973","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: 14