Abstract
Spatial tracking devices are frequently used in virtual environments, such as in the case of helmet mounted displays, to dynamically determine the user's viewpoint and line of sight. Temporal distortion effects are perceived by the user as a result of the lag between head movement and visual feedback. Measurements of phase lag have been made and to help alleviate these problems, predictive filtering techniques are frequently used. We report on studies that have been made in the use of a modified Kalman filter algorithm. The implementation provides favourable results in terms of reduction on the effect of phase lag.
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.References
Kalman, R.E, (1960). A New Approach to Linear Filtering and Predictive Problems,Transactions ASME, J. Basic Engrg.,82: 34–45.
Liang, J., Shaw, C. and Green, M., (1991). On Temporal-Spatial Realism in the Virtual Reality Environment, InProc. 4th Annual Symposium on User Interface Software and Technology, Hilton Head SC, 19–25.
Kalawsky, R.S., (1993).The Science of Virtual Reality and Virtual Environments, Wokingham: Addison-Wesley.
Pausch, R., (1991). Virtual Reality on Five Dollars a Day,ACM SIGPHI Conf Proc., New Orleans, 265–270.
Singer, R.A., Benhnke, K.W., (1971). Real-time Tracking Filter Evaluation and Selection for Tactical Applications,IEEE Transactions on Aerospace and Electronic Systems,7(1): 100–110.
Wang, J.F., Chi, V. and Fuchs, H., (1990). A Realtime 6D Optical Tracker for Head Mounted Display Systems,Computer Graphics,24(2).
Wenzel, E..M., (1992). Localisation of Virtual Acoustic Displays.Presence. Teleoperators and Virtual Environments,1(1): 80–107.
Wiener, N., (1949).Extrapolation, Interpolation and Smoothing of Stationary Time Series, New York: Wiley.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Dunnett, P., Harwood, R.M., Brookes, G.R. et al. Use of a modified kalman filter for a visually coupled system application. Virtual Reality 1, 57–67 (1995). https://doi.org/10.1007/BF02009714
Issue Date:
DOI: https://doi.org/10.1007/BF02009714