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Friday, April 14 • 12:30pm - 1:00pm
Multi-User Redirected Walking in Shared Physical Spaces

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As the focus of virtual reality technology is shifting from single-person experiences to multi-user interactions it becomes increasingly important to accommodate multiple co-located users within a shared real-world space. For locomotion and navigation, the introduction of multiple users moving both virtually and physically creates additional challenges related to potential user-on-user collisions. In this work, we focus on defining the extent of these challenges, in order to apply redirected walking to two users immersed in virtual reality experiences within a shared physical tracked space. Using a computer simulation framework, we explore the costs and benefits of splitting available physical space between users versus attempting to algorithmically prevent user-to-user collisions. We also explore fundamental components of collision prevention such as steering the users away from each other, forced stopping, and user re-orientation. Each component was analyzed for the number of potential disruptions to the flow of the virtual experience. We also develop a novel collision prevention algorithm that reduces overall interruptions by 17.6% and collision prevention events by 58.3%. Our results show that sharing space using our collision prevention method is superior to subdividing the tracked space. 

avatar for Mahdi Azmandian

Mahdi Azmandian

University of Southern California
Mahdi Azmandian is Ph.D. candidate at the University of Southern California. Working under the supervision of Dr. Evan Suma Rosenberg at the ICT Mixed Reality Lab, his dissertation is focused on developing a generalized framework for Redirected Walking in immersive virtual environments. His research interests include perceptual illusions, 2D and 3D interactions, designing Virtual and Augmented Reality toolkits, and optics. 

Friday April 14, 2017 12:30pm - 1:00pm
IEEE VR Theater

Attendees (34)