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AUTOMATIC CALIBRATION OF EYE TRACKING FOR OPTICAL SEE-THROUGH HEAD MOUNTED DISPLAY

  • US 20150049013A1
  • Filed: 01/23/2014
  • Published: 02/19/2015
  • Est. Priority Date: 08/19/2013
  • Status: Active Grant
First Claim
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1. A method of calibrating an eye tracking module of an optical see-through head mounted display (HMD) being worn by a user, said method comprising:

  • automatically displaying an object on the HMD, the object displayed progressively at a plurality of different object points (P) on the HMD at corresponding different times (T);

    for an accuracy point (A) corresponding to one of the plurality of different object points (P), determining whether an offset between the accuracy point (A) and an eye gaze point (E) satisfies a threshold, the eye-gaze point (E) corresponding to a point on the HMD where the user is determined to be gazing by the eye tracking module;

    if the threshold is not satisfied, performing a calibration of the eye tracking module for a calibration point (C) corresponding to one of the plurality of different object points (P); and

    repeating the determining for a subsequent accuracy point (A) corresponding to one of the plurality of different object points (P).

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