Virtual vs. Physical Navigation in VR: Study of Gaze and Body Segments Temporal Reorientation Behaviour | TU Wien

Information

Publication Type: Conference Paper
Workgroup(s)/Project(s): not specified
Date: March 2019
Location: Osaka, Japan
Lecturer: Hugo Brument
Event: Ieee Vr 2019
Call for Papers: Call for Paper
Booktitle: Proceedings of IEEE VR 2019 - 26th IEEE Conference on Virtual Reality and 3D User Interfaces
Conference date: March 2019
Pages: 1 – 10
Keywords: virtual reality

Abstract

This paper investigates whether the body anticipation synergies in real environments (REs) are preserved during navigation in virtual environments (VEs). Experimental studies related to the control of human locomotion in REs during curved trajectories report a top-down reorientation strategy with the reorientation of the gaze anticipating the reorientation of head, the shoulders and finally the global body motion. This anticipation behavior provides a stable reference frame to the walker to control and reorient his/her body according to the future walking direction. To assess body anticipation during navigation in VEs, we conducted an experiment where participants, wearing a head-mounted display, performed a lemniscate trajectory in a virtual environment (VE) using five different navigation techniques, including walking, virtual steering (head, hand or torso steering) and passive navigation. For the purpose of this experiment, we designed a new control law based on the power-law relation between speed and curvature during human walking. Taken together our results showed a similar ordered top-down sequence of reorientation of the gaze, head and shoulders during curved trajectories between walking in REs and in VEs (for all the evaluated techniques). However, the anticipation mechanism was significantly higher for the walking condition compared to the others. The results presented in this paper pave the way to the better understanding of the underlying mechanisms of human navigation in VEs and to the design of navigation techniques more adapted to humans.

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BibTeX

@inproceedings{brument_2019_br19,
  title =      "Virtual vs. Physical Navigation in VR: Study of Gaze and
               Body Segments Temporal Reorientation Behaviour",
  author =     "Hugo Brument and Iana Podkosova and Hannes Kaufmann and
               Anne-Helene Olivier and Ferran Argelaguet",
  year =       "2019",
  abstract =   "This paper investigates whether the body anticipation
               synergies in real environments (REs) are preserved during
               navigation in virtual environments (VEs). Experimental
               studies related to the control of human locomotion in REs
               during curved trajectories report a top-down reorientation
               strategy with the reorientation of the gaze anticipating the
               reorientation of head, the shoulders and finally the global
               body motion. This anticipation behavior provides a stable
               reference frame to the walker to control and reorient
               his/her body according to the future walking direction. To
               assess body anticipation during navigation in VEs, we
               conducted an experiment where participants, wearing a
               head-mounted display, performed a lemniscate trajectory in a
               virtual environment (VE) using five different navigation
               techniques, including walking, virtual steering (head, hand
               or torso steering) and passive navigation. For the purpose
               of this experiment, we designed a new control law based on
               the power-law relation between speed and curvature during
               human walking. Taken together our results showed a similar
               ordered top-down sequence of reorientation of the gaze, head
               and shoulders during curved trajectories between walking in
               REs and in VEs (for all the evaluated techniques). However,
               the anticipation mechanism was significantly higher for the
               walking condition compared to the others. The results
               presented in this paper pave the way to the better
               understanding of the underlying mechanisms of human
               navigation in VEs and to the design of navigation techniques
               more adapted to humans.",
  month =      mar,
  location =   "Osaka, Japan",
  event =      "Ieee Vr 2019",
  booktitle =  "Proceedings of IEEE VR 2019 - 26th IEEE Conference on
               Virtual Reality and 3D User Interfaces",
  pages =      "1--10",
  keywords =   "virtual reality",
  URL =        "https://www.cg.tuwien.ac.at/research/publications/2019/brument_2019_br19/",
}