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I. Podkosova, H. Kaufmann:
"Mutual Collision Avoidance During Walking in Real and Collaborative Virtual Environments";
Talk: i3D'18, Montreal; 2018-05-15 - 2018-05-18; in: "Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games", (2018), ISBN: 978-1-4503-5705-0; 1 - 9.

In walkable multi-user HMD-based VR immersed users have to
avoid colliding with each other while performing tasks or exploring the virtual environment. This paper presents an experiment in
which we compare mutual collision avoidance behaviour of pairs
of users walking in the matched real and virtual environments. To
generalize our study, we investigate two types of multi-user VR
setup: one in which both users share a common tracking space (colocated condition) and one where they move in two separate tracking
spaces while sharing a common virtual space (distributed condition). Our results indicated signifcant differences in locomotor
trajectories of participants between the real and virtual conditions.
Precisely, we observed an increase in the clearance distance and
the median path curvature and a decrease in the walking speed
when participants performed the test in VR in the colocated condition. Moreover, we found effects of pre-conditioning between the
colocated and distributed scenarios.

virtual reality, multi-user VR

http://dx.doi.org/10.1145/3190834.3190845