Multi-User Redirected Walking in Separate Physical Spaces for Online VR Scenarios

Sen-Zhe Xu YMCS, Tsinghua Univerisity Jia-Hong Liu Department of Computer Science and Technology, Tsinghua Univerisity Miao Wang School of Computer Science and Engineering, Beihang University Fang-Lue Zhang School of Engineering and Computer Science, Victoria University of Wellington Song-Hai Zhang Department of Computer Science and Technology, Tsinghua University

TBD mathscidoc:2210.43001

With the recent rise of Metaverse, online multiplayer VR applications are becoming increasingly prevalent worldwide. Allowing users to move easily in virtual environments is crucial for high-quality experiences in such collaborative VR applications. This paper focuses on redirected walking technology (RDW) to allow users to move beyond the confines of the limited physical environments (PE). The existing RDW methods lack the scheme to coordinate multiple users in different PEs, and thus have the issue of triggering too many resets for all the users. We propose a novel multi-user RDW method that is able to significantly reduce the overall reset number and give users a better immersive experience by providing a more continuous exploration. Our key idea is to first find out the ”bottleneck” user that may cause all users to be reset and estimate the time to reset, and then redirect all the users to favorable poses during that maximized bottleneck time to ensure the subsequent resets can be postponed as much as possible. More particularly, we develop methods to estimate the time of possibly encountering obstacles and the reachable area for a specific pose to enable the prediction of the next reset caused by any user. Our experiments and user study found that our method outperforms existing RDW methods in online VR applications.
Redirected walking, multiplayer, online VR
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@inproceedings{sen-zhemulti-user,
  title={Multi-User Redirected Walking in Separate Physical Spaces for Online VR Scenarios},
  author={Sen-Zhe Xu, Jia-Hong Liu, Miao Wang, Fang-Lue Zhang, and Song-Hai Zhang},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20221007162131939505733},
}
Sen-Zhe Xu, Jia-Hong Liu, Miao Wang, Fang-Lue Zhang, and Song-Hai Zhang. Multi-User Redirected Walking in Separate Physical Spaces for Online VR Scenarios. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20221007162131939505733.
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