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Open AccessArticle

Low-Asymmetry Interface for Multiuser VR Experiences with Both HMD and Non-HMD Users

1
Interdisciplinary Program in Visual Information Processing, Korea University, Seoul 02841, Korea
2
Department of Information Systems Engineering, Sungshin Women’s University, Seoul 02844, Korea
3
Department of Computer Science and Engineering, Korea University, Seoul 02841, Korea
*
Author to whom correspondence should be addressed.
Sensors 2021, 21(2), 397; https://doi.org/10.3390/s21020397
Received: 4 December 2020 / Revised: 28 December 2020 / Accepted: 6 January 2021 / Published: 8 January 2021
(This article belongs to the Special Issue Human Activity Detection and Recognition)
We propose a low-asymmetry interface to improve the presence of non-head-mounted-display (non-HMD) users in shared virtual reality (VR) experiences with HMD users. The low-asymmetry interface ensures that the HMD and non-HMD users’ perception of the VR environment is almost similar. That is, the point-of-view asymmetry and behavior asymmetry between HMD and non-HMD users are reduced. Our system comprises a portable mobile device as a visual display to provide a changing PoV for the non-HMD user and a walking simulator as an in-place walking detection sensor to enable the same level of realistic and unrestricted physical-walking-based locomotion for all users. Because this allows non-HMD users to experience the same level of visualization and free movement as HMD users, both of them can engage as the main actors in movement scenarios. Our user study revealed that the low-asymmetry interface enables non-HMD users to feel a presence similar to that of the HMD users when performing equivalent locomotion tasks in a virtual environment. Furthermore, our system can enable one HMD user and multiple non-HMD users to participate together in a virtual world; moreover, our experiments show that the non-HMD user satisfaction increases with the number of non-HMD participants owing to increased presence and enjoyment. View Full-Text
Keywords: low-asymmetry interface; walking simulator; shared experience; multiuser VR low-asymmetry interface; walking simulator; shared experience; multiuser VR
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MDPI and ACS Style

Zhang, Q.; Ban, J.-S.; Kim, M.; Byun, H.W.; Kim, C.-H. Low-Asymmetry Interface for Multiuser VR Experiences with Both HMD and Non-HMD Users. Sensors 2021, 21, 397. https://doi.org/10.3390/s21020397

AMA Style

Zhang Q, Ban J-S, Kim M, Byun HW, Kim C-H. Low-Asymmetry Interface for Multiuser VR Experiences with Both HMD and Non-HMD Users. Sensors. 2021; 21(2):397. https://doi.org/10.3390/s21020397

Chicago/Turabian Style

Zhang, Qimeng; Ban, Ji-Su; Kim, Mingyu; Byun, Hae W.; Kim, Chang-Hun. 2021. "Low-Asymmetry Interface for Multiuser VR Experiences with Both HMD and Non-HMD Users" Sensors 21, no. 2: 397. https://doi.org/10.3390/s21020397

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