Sharing and Stretching Space with Full Body Tracking

Part of the Human-Computer Interaction Series book series (HCIS)


New opportunities emerge when mixed reality environments are ­augmented with immersive displays and full body, real-time tracking. Such systems enable the creation of experiences where users “share space” with other virtual humans in the virtual environment. These systems can portray responsive 3D virtual humans that react to position, motion, and gesture. The tracking data can also be used in analyzing physical and social responses to virtual characters. Additionally, such systems can use tracking data to identify opportunities for altering a user’s perception of the environment. This is helpful in situations where redirection or reorientation of the user might be done to “stretch space,” i.e. imperceptibly rotating or changing the environment around the user, so that a straight-line walk becomes a curve, preventing the user from ever encountering the walls in the physical space. We believe that allowing users to co-inhabit virtual spaces with virtual humans and decoupling physical size constraints from these virtual spaces are two important building blocks for effective mixed reality training experiences.


Virtual Environment Motion Capture Mixed Reality Virtual Character Change Blindness 


  1. 1.
    Bolas, M., Krum, D.M.: Augmented reality applications and user interfaces using head-coupled near-axis personal projectors with novel retroreflective props and surfaces. In: Pervasive 2010 Ubiprojection Workshop, Helsinki (2010)Google Scholar
  2. 2.
    Chance, S.S., Gaunet, F., Beall, A.C., Loomis, J.M.: Locomotion mode affects the updating of objects encountered during travel: the contribution of vestibular and proprioceptive inputs to path integration. Presence 7(2), 168–178 (1998)CrossRefGoogle Scholar
  3. 3.
    Darken, R., Cockayne, W., Carmein, D.: The omni-directional treadmill: a locomotion device for virtual worlds. In: User Interface Software and Technology (UIST), Banff, Alberta (1997)Google Scholar
  4. 4.
    Interrante, V., Ries, B., Anderson, L.: Seven league boots: a new metaphor for augmented locomotion through moderately large scale immersive virtual environments. In: IEEE Symposium on 3D User Interfaces, pp. 167–170, Charlotte (2007)Google Scholar
  5. 5.
    Kaufman, R.E.: A family of new ergonomic harness mechanisms for full-body constrained motions in virtual environments. In: IEEE Symposium on 3D User Interfaces, Charlotte (2007)Google Scholar
  6. 6.
    Pair, J., Neumann, U., Piepol, D., Swartout, B.: FlatWorld: combining Hollywood set design techniques with VR. IEEE Comput. Graph. Appl. 23(1), 12–15 (2003)CrossRefGoogle Scholar
  7. 7.
    Peck, T.C., Fuchs, H., Whitton, M.C.: Evaluation of reorientation techniques and distractors for walking in large virtual environments. IEEE Trans. Vis. Comput. Graph. 15(3), 383–394 (2009)CrossRefGoogle Scholar
  8. 8.
    Razzaque, S.: Redirected walking. Dissertation, University of North Carolina at Chapel Hill (2005)Google Scholar
  9. 9.
    Reeves, B., Nass, C.: The media equation: how people treat computers, television, and new media like real people and places. Cambridge University Press, Cambridge (1996)Google Scholar
  10. 10.
    Ruddle, R.A., Lessels, S.: The benefits of using a walking interface to navigate virtual environments. ACM Trans. Comput. Hum. Interact. 16(1), 1–18 (2009)CrossRefGoogle Scholar
  11. 11.
    Schwaiger, M., Thümmel, T., Ulbrich, H.: Cyberwalk: implementation of a ball bearing platform for humans. International Conference on Human-Computer Interaction, pp. 926–935, Beijing (2007)Google Scholar
  12. 12.
    Suma, E., Clark, S., Finkelstein, S., Wartell, Z.: Exploiting change blindness to expand walkable space in a virtual environment. In: IEEE Virtual Reality, Exploiting change blindness to expand walkable space in a virtual environment. In: IEEE Virtual Reality, pp. 305–306, Waltham (2010)Google Scholar
  13. 13.
    Suma, E., Finkelstein, S., Reid, M., Babu, S., Ulinski, A., Hodges, L.F.: Evaluation of the cognitive effects of travel technique in complex real and virtual environments. IEEE Trans. Vis. Comput. Graph. 16(4), 690–702 (2010)CrossRefGoogle Scholar
  14. 14.
    Templeman, J.N.: Virtual locomotion: walking in place through virtual environments. Presence 8(6), 598–617 (1999)CrossRefGoogle Scholar
  15. 15.
    Usoh, M., Arthur, K., Whitton, M.C., Bastos, R., Steed, A., Slater, M., Brooks, F.P.: Walking > walking-in-place > flying, in virtual environments. In: ACM SIGGRAPH, pp. 359–364, San Antonio (1999)Google Scholar
  16. 16.
    Virtusphere. Accessed 23 Oct 2010
  17. 17.
    Waller, D., Bachmann, E., Hodgson, E., Beall, A.C.: The HIVE: a huge immersive virtual environment for research in spatial cognition. Behav. Res. Methods 39, 835–843 (2007)CrossRefGoogle Scholar
  18. 18.
    Welch, G., Foxlin, E.: Motion tracking: no silver bullet, but a respectable arsenal. IEEE Comput. Graph. Appl. 22(6), 24–38 (2002)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag London Limited 2011

Authors and Affiliations

  1. 1.Institute for Creative TechnologiesUniversity of Southern CaliforniaLos AngelesUSA

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