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

Area of Science:

• Human-Computer Interaction
• Virtual Reality Studies
• Immersive Technologies

Background:

• Shared virtual reality (VR) experiences often create asymmetry between head-mounted display (HMD) users and non-HMD users.
• This disparity impacts the sense of presence and interaction quality for non-HMD participants.

Purpose of the Study:

• To develop and evaluate a low-asymmetry interface that enhances the presence of non-HMD users in shared VR environments.
• To minimize point-of-view and behavioral differences between HMD and non-HMD users.
• To enable seamless co-experience and equal engagement for all participants.

Main Methods:

• Implementation of a portable mobile device for a dynamic point-of-view (PoV) display for non-HMD users.
• Integration of a walking simulator for in-place walking detection and realistic locomotion.
• User study to compare presence and satisfaction between HMD and non-HMD users.

Main Results:

• The low-asymmetry interface significantly improved the sense of presence for non-HMD users, making it comparable to HMD users.
• Non-HMD users experienced similar visualization and free movement capabilities as HMD users.
• User satisfaction increased with a higher number of non-HMD participants.

Conclusions:

• The proposed low-asymmetry interface effectively bridges the presence gap in shared VR.
• The system facilitates inclusive VR experiences where non-HMD users are active participants.
• This approach enhances user engagement and satisfaction in multi-user virtual environments.