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

  • ©Stefan Gottschalk and John F. Hughes




    Autocalibration for virtual environments tracking hardware



    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    of virtual environments equipment has been replaced by automated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.


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