Human sensitivity to dynamic rotation gains in head-mounted displays

Document Type

Conference Proceeding

Publication Date

9-16-2013

Abstract

Head-mounted display (HMD) systems make it possible to introduce discrepancies between physical and virtual world rotations. Small and hopefully unnoticed discrepancies can be useful for redirected walking algorithms which seek to allow a user to explore a large virtual space while confined to a small real space. Previous work has examined if people can detect discrepancies which are fixed (such as when the virtual world rotation rate is amplified by a fixed value). In this work, we conducted an experiment where participants turn 360 degrees in the real world and indicate if the virtual world rotation rate increased or decreased over the course of the turn. Our results show no difference between rotational gains which instantaneously jump from one value to another compared to gains which slowly change over the course of a 360 degree turn. We also found that the starting gain influenced the point of subjective equality. Finally, our work indicates that the range of reliably detectable gain changes is consistent for starting gains at 1 and starting gains at 2. © 2013 ACM.

Publication Title

Proceedings - SAP 2013: ACM Symposium on Applied Perception

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