Estimation of Detection Thresholds for Redirected Walking Techniques

—In immersive virtual environments (IVEs) users can control their virtual viewpoint by moving their tracked head and by walking through the real world. Usually, movements in the real world are mapped one-to-one to virtual camera motions. With redirection techniques, the virtual camera is manipulated by applying gains to user motion so that the virtual world moves differently than the real world. Thus, users can walk through large-scale IVEs while physically remaining in a reasonably small workspace. In psychophysical experiments with a two-alternative-forced-choice tasks we have quantified how much humans can unknowingly be redirected on physical paths which are different from the visually perceived paths. We tested 12 subjects in three different experiments: (E1) discrimination between virtual and physical rotation, (E2) discrimination between virtual and physical straightforward movements, and (E3) discrimination of path curvature. In experiment E1, subjects performed rotations wi...

• Type: Journal
• Year: 2010
• Where: TVCG
• Authors: Frank Steinicke, Gerd Bruder, Jason Jerald, Harald Frenz, Markus Lappe
• Keywords: Real World, TVCG 2010, Virtual, Virtual Camera