ABSTRACT
Redirected walking allows users to walk through large-scale immersive virtual environments (IVEs) while physically remaining in a reasonably small workspace by intentionally injecting scene motion into the IVE. In a constant stimuli experiment with a two-alternative-forced-choice task we have quantified how much humans can unknowingly be redirected on virtual paths which are different from the paths they actually walk. 18 subjects have been tested in four different experiments: (E1a) discrimination between virtual and physical rotation, (E1b) discrimination between two successive rotations, (E2) discrimination between virtual and physical translation, and discrimination of walking direction (E3a) without and (E3b) with start-up. In experiment E1a subjects performed rotations to which different gains have been applied, and then had to choose whether or not the visually perceived rotation was greater than the physical rotation. In experiment E1b subjects discriminated between two successive rotations where different gains have been applied to the physical rotation. In experiment E2 subjects chose if they thought that the physical walk was longer than the visually perceived scaled travel distance. In experiment E3a subjects walked a straight path in the IVE which was physically bent to the left or to the right, and they estimate the direction of the curvature. In experiment E3a the gain was applied immediately, whereas the gain was applied after a start-up of two meters in experiment E3b. Our results show that users can be turned physically about 68% more or 10% less than the perceived virtual rotation, distances can be up- or down-scaled by 22%, and users can be redirected on an circular arc with a radius greater than 24 meters while they believe they are walking straight.
- Banton, T., Stefanucci, J., Durgin, F., Fass, A., and Proffitt, D. 2005. The perception of walking speed in a virtual environment. Presence 14, 4, 394--406. Google ScholarDigital Library
- Berthoz, A. 2000. The Brain's Sense of Movement. Harvard University Press, Cambridge, Massachusetts.Google Scholar
- Bertin, R. J., Israël, I., and Lappe, M. 2000. Perception of two-dimensional, simulated ego-motion trajectories from optic flow. Vis. Res. 40, 21, 2951--2971.Google ScholarCross Ref
- Bouguila, L., and Sato, M. 2002. Virtual Locomotion System for Large-Scale Virtual Environment. In Proceedings of Virtual Reality, IEEE, 291--292. Google ScholarDigital Library
- Bouguila, L., Sato, M., Hasegawa, S., Naoki, H., Matsumoto, N., Toyama, A., Ezzine, J., and Maghrebi, D. 2002. A New Step-in-Place Locomotion Interface for Virtual Environment with Large Display System. In Proceedings of SIGGRAPH, ACM, 63. Google ScholarDigital Library
- Bridgeman, B., van der Heijden, A. H. C., and Velichkovsky, B. M. 1994. A theory of visual stability across saccadic eye movements. Behav. Brain Sci. 17, 247--292.Google ScholarCross Ref
- Burns, E., Razzaque, S., Panter, A. T., Whitton, M., McCallus, M., and Brooks, F. 2005. The Hand is Slower than the Eye: A Quantitative Exploration of Visual Dominance over Proprioception. In Proceedings of Virtual Reality, IEEE, 3--10. Google ScholarDigital Library
- Dichgans, J., and Brandt, T. 1978. Visual vestibular interaction: Effects on self-motion perception and postural control. In Perception. Handbook of Sensory Physiology, Vol. 8, Springer, Berlin, Heidelberg, New York, R. Held, H. W. Leibowitz, and H. L. Teuber, Eds., 755--804.Google Scholar
- Feasel, J., Whitton, M., and Wendt, J. 2008. LLCM-WIP: Low-latency, continuous-motion walking-in-place. In Proceedings of Symposium on 3D User Interfaces 2008, IEEE, 97--104. Google ScholarDigital Library
- Frenz, H., Lappe, M., Kolesnik, M., and Bührmann, T. 2007. Estimation of travel distance from visual motion in virtual environments. ACM Trans. Appl. Percept. 3, 4, 419--428. Google ScholarDigital Library
- Groenda, H., Nowak, F., Rössler, P., and Hanebeck, U. D. 2005. Telepresence Techniques for Controlling Avatar Motion in First Person Games. In Intelligent Technologies for Interactive Entertainment (INTETAIN 2005), 44--53. Google ScholarDigital Library
- Interrante, V., Anderson, L., and Ries, B. 2006. Distance Perception in Immersive Virtual Environments, Revisited. In Proceedings of Virtual Reality, IEEE, 3--10. Google ScholarDigital Library
- Interrante, V., Ries, B., Lindquist, J., and Anderson, L. 2007. Elucidating the Factors that can Facilitate Veridical Spatial Perception in Immersive Virtual Environments. In Proceedings of Virtual Reality, IEEE, 11--18.Google Scholar
- Interrante, V., Riesand, B., and Anderson, L. 2007. Seven League Boots: A New Metaphor for Augmented Locomotion through Moderately Large Scale Immersive Virtual Environments. In Proceedings of Symposium on 3D User Interfaces, IEEE, 167--170.Google Scholar
- Iwata, H., Yano, H., Fukushima, H., and Noma, H. 2005. CirculaFloor. IEEE Computer Graphics and Applications 25, 1, 64--67. Google ScholarDigital Library
- Iwata, H., Hiroaki, Y., and Tomioka, H. 2006. Powered Shoes. SIGGRAPH 2006 Emerging Technologies, 28. Google ScholarDigital Library
- Jerald, J., Peck, T., Steinicke, F., and Whitton, M. 2008. Sensitivity to scene motion for phases of head yaws. In Proceedings of Applied Perception in Graphics and Visualization, ACM, 155--162. Google ScholarDigital Library
- Kohli, L., Burns, E., Miller, D., and Fuchs, H. 2005. Combining Passive Haptics with Redirected Walking. In Proceedings of Conference on Augmented Tele-Existence, ACM, vol. 157, 253--254. Google ScholarDigital Library
- Lappe, M., Bremmer, F., and van den Berg, A. V. 1999. Perception of self-motion from visual flow. Trends. Cogn. Sci. 3, 9, 329--336.Google ScholarCross Ref
- Loomis, J. M., and Knapp, J. M. 2003. Visual perception of egocentric distance in real and virtual environments. In Virtual and adaptive environments, L. J. Hettinger and M. W. Haas, Eds., vol. Virtual and adaptive environments. Mahwah.Google Scholar
- Nitzsche, N., Hanebeck, U., and Schmidt, G. 2004. Motion Compression for Telepresent Walking in Large Target Environments. In Presence, vol. 13, 44--60. Google ScholarDigital Library
- Peck, T., Whitton, M., and Fuchs, H. 2008. Evaluation of reorientation techniques for walking in large virtual environments. In Proceedings of Virtual Reality, IEEE, 121--128.Google Scholar
- Razzaque, S. 2005. Redirected Walking. PhD thesis, University of North Carolina, Chapel Hill. Google ScholarDigital Library
- Riecke, B., and Wiener, J. 2007. Can People not Tell Left from Right in VR? Point-to-Origin Studies Revealed Qualitative Errors in Visual Path Integration. In Proceedings of Virtual Reality, IEEE, 3--10.Google Scholar
- Schwaiger, M., Thümmel, T., and Ulbrich, H. 2007. Cyberwalk: Implementation of a Ball Bearing Platform for Humans. In Proceedings of HCI, 926--935. Google ScholarDigital Library
- Steinicke, F., Bruder, G., Kohli, L., Jerald, J., and Hinrichs, K. 2008. Taxonomy and implementation of redirection techniques for ubiquitous passive haptic feedback. In Cyber-worlds, IEEE Press. Google ScholarDigital Library
- Steinicke, F., Bruder, G., Ropinski, T., and K. Hinrichs. 2008. Moving towards generally applicable redirected walking. In Proceedings of the Virtual Reality International Conference (VRIC), IEEE Press, 15--24.Google Scholar
- Su, J. 2007. Motion Compression for Telepresence Locomotion. Presence: Teleoperator in Virtual Environments 4, 16, 385--398. Google ScholarDigital Library
- Usoh, M., Arthur, K., Whitton, M., Bastos, R., Steed, A., Slater, M., and Brooks, F. 1999. Walking > Walking-in-Place > Flying, in Virtual Environments. In Proceedings of SIGGRAPH, ACM, 359--364. Google ScholarDigital Library
- Wallach, H. 1987. Perceiving a stable environment when one moves. Anual Review of Psychology 38, 127.Google ScholarCross Ref
- Wertheim, A. H. 1994. Motion perception during self-motion, the direct versus inferential controversy revisited. Behav. Brain Sci. 17, 2, 293--355.Google ScholarCross Ref
- Whitton, M., Cohn, J., Feasel, P., Zimmons, S., Razzaque, S., Poulton, B., and und F. Brooks, B. M. 2005. Comparing VE Locomotion Interfaces. In Proceedings of Virtual Reality, IEEE, 123--130. Google ScholarDigital Library
- Williams, B., Narasimham, G., McNamara, T. P., Carr, T. H., Rieser, J. J., and Bodenheimer, B. 2006. Updating Orientation in Large Virtual Environments using Scaled Trans-lational Gain. In Proceedings of the 3rd Symposium on Applied Perception in Graphics and Visualization, vol. 153, ACM, 21--28. Google ScholarDigital Library
Index Terms
- Analyses of human sensitivity to redirected walking
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