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Calibration-free eye gaze tracking

  • US 6,578,962 B1
  • Filed: 04/27/2001
  • Issued: 06/17/2003
  • Est. Priority Date: 04/27/2001
  • Status: Expired due to Term
First Claim
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1. A method for eye gaze tracking, comprising the steps of:

  • focusing at least one camera upon at least one of a user'"'"'s eyes, each said camera having a focal center, an image plane, and a co-located light source emitting light toward said eye;

    identifying and locating image aspects including at least one glint and a pupil image in said image plane; and

    computing a gaze vector from at least one plane generated from said image aspects and camera position and orientation data.

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