“Autocalibration for virtual environments tracking hardware” by Gottschalk and Hughes

  • ©Stefan Gottschalk and John F. Hughes

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Title:

    Autocalibration for virtual environments tracking hardware

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Abstract:


    We describe two instances in which precise mechanical calibration
    of virtual environments equipment has been replaced by automated
    algorithmic calibration through software that encapsulates the
    hardware design and uses a goal-based approach to adjust
    calibration parameters. We describe a back-projection system for
    adjusting the assumed locations of beacons in a head-mounted
    display tracking system; the calculated errors in the navigation
    system are used to compute adjustments to the beacon positions to
    reduce such errors. In a second application, a piggyback headtracking/hand-tracking system is calibrated by a similar reduction
    of computed errors.

References:


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    7. Jib-Fang Wang. A Real-time Optical 6D Tracker for Head-mounted Display Systems. Technical Report TR90-011, UNC-Chapel Hill Department of Computer Science, March 1990.


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