REAL-TIME TRACKING FOR VIRTUAL ENVIRONMENTS USING SCAAT KALMAN FILTERING AND UNSYNCHRONISED CAMERAS

Niels Tjørnly Rasmussen, Moritz Störring, Thomas B. Moeslund, Erik Granum

2006

Abstract

This paper presents a real-time outside-in camera-based tracking system for wireless 3D pose tracking of a user’s head and hand in a virtual environment. The system uses four unsynchronised cameras as sensors and passive retroreflective markers arranged in rigid bodies as targets. In order to achieve high update rates and to cope with the unsynchronised data a single-constraint-at-a-time (SCAAT) Extended Kalman Filtering approach is used that recursively integrates measurements as soon as they are available one-at-a-time. Tests show that this approach is more robust to occlusions and provides less noisy pose estimates with a higher update rate than a conventional stereo triangulation approach.

References

  1. Rasmussen, N. T. (2003). Real-Time Camera-Based Optical Tracking for Virtual Environments using singleconstraint-at-a-time Extended Kalman Filtering. Master's thesis, Computer Vision and Media Technology Lab., Aalborg University, Aalborg, Denmark.
  2. Ribo, M. (2001). State of the Art Report on Optical Tracking. Technical Report TR VRVis 2001 025, VRVis Research Center for Virtual Reality and Visualization, Ltd., Vienna, Austria.
  3. Ribo, M., Pinz, A., and Fuhrmann, A. (2001). A new Optical Tracking System for Virtual and Augmented Reality Applications. In Proc. of the 18th IEEE Instrumentation and Measurement Technology Conf., volume 3, pages 1932-1936, Budapest, Hungary.
  4. Rolland, J., Davis, L., and Baillot, Y. (2001). A Survey of Tracking Technology for Virtual Environments. In Bardfield, W. and Caudell, T., editors, Fundamentals of Wearable Computers and Augmented Reality. Lawrence Erlbaum Associates.
  5. Stefani, O., Hoffmann, H., and Rauschenbach, J. (2003). Design of Interaction Devices for Optical Tracking in Immersive Environments. In Proceedings of HCI International, volume 3, Crete, Greece.
  6. Usoh, M., Arthur, K., Whitton, M., Bastos, R., Steed, A., Slater, M., and Brooks, F.P., J. (1999). Walking > Walking-in-Place > Flying, in Virtual Environments. Computer Graphics Proceedings. SIGGRAPH 99, pages 359-64.
  7. Wan, E. and Van Der Merwe, R. (2000). The unscented kalman filter for nonlinear estimation. In Adaptive Systems for Signal Processing, Communications, and Control Symposium, pages 153-158, Lake Louise, Alta., Canada. IEEE.
  8. Welch, G. (1996). SCAAT: Incremental Tracking with Incomplete Information. PhD thesis, University of North Carolina at Chapel Hill, NC, USA.
  9. Welch, G. and Bishop, G. (1997). SCAAT: Incremental Tracking with Incomplete Information. In Whitted, T., editor, SIGGRAPH Proceedings, Annual Conference on Computer Graphics & Interactive Techniques, pages 333-344. ACM Press, Addison-Wesley, Los Angeles, CA, USA.
  10. Welch, G., Bishop, G., Vicci, L., Brumback, S., Keller, K., and Colucci, D. (2001). High-Performance WideArea Optical Tracking. The HiBall Tracking System. Presence - Teleoperators and Virtual Environments, 10(1):1-21.
  11. Welch, G. and Foxlin, E. (2002). Motion Tracking: No Silver Bullet, but a Respectable Arsenal. IEEE Computer Graphics and Applications, 6(22):24-38.
  12. Youngblut, C., Johnson, R. E., Nash, S. H., Wienclaw, R. A., and Will, C. A. (1996). Tracking interfaces. In Review of Virtual Environment Interface Technology, pages 47-77. Institute for Defense Analyses, Alexandria, VA, USA. Part 3 of IDA Paper P-3186, http://www.hitl.washington.edu/scivw/IDA/.
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Paper Citation


in Harvard Style

Tjørnly Rasmussen N., Störring M., B. Moeslund T. and Granum E. (2006). REAL-TIME TRACKING FOR VIRTUAL ENVIRONMENTS USING SCAAT KALMAN FILTERING AND UNSYNCHRONISED CAMERAS . In Proceedings of the First International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, ISBN 972-8865-40-6, pages 333-340. DOI: 10.5220/0001367803330340


in Bibtex Style

@conference{visapp06,
author={Niels Tjørnly Rasmussen and Moritz Störring and Thomas B. Moeslund and Erik Granum},
title={REAL-TIME TRACKING FOR VIRTUAL ENVIRONMENTS USING SCAAT KALMAN FILTERING AND UNSYNCHRONISED CAMERAS},
booktitle={Proceedings of the First International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP,},
year={2006},
pages={333-340},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001367803330340},
isbn={972-8865-40-6},
}


in EndNote Style

TY - CONF
JO - Proceedings of the First International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP,
TI - REAL-TIME TRACKING FOR VIRTUAL ENVIRONMENTS USING SCAAT KALMAN FILTERING AND UNSYNCHRONISED CAMERAS
SN - 972-8865-40-6
AU - Tjørnly Rasmussen N.
AU - Störring M.
AU - B. Moeslund T.
AU - Granum E.
PY - 2006
SP - 333
EP - 340
DO - 10.5220/0001367803330340