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Gaze Point Tracking Using Polarized Light

  • US 20110170061A1
  • Filed: 05/26/2010
  • Published: 07/14/2011
  • Est. Priority Date: 01/08/2010
  • Status: Abandoned Application
First Claim
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1. A process comprising:

  • illuminating one eye to produce a glint on said eye;

    obtaining a glint image of said eye showing said glint on said eye;

    further illuminating said eye using polarized light;

    obtaining, through a polarizer that can attenuate reflected polarized light, a pupil image of said eye;

    determining one glint position at least in part from said glint image, anddetermining one pupil position at least in part from said pupil image.

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