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1. (WO2016057435) GAZE TRACKING THROUGH EYEWEAR

Pub. No.:    WO/2016/057435    International Application No.:    PCT/US2015/054102
Publication Date: Fri Apr 15 01:59:59 CEST 2016 International Filing Date: Wed Oct 07 01:59:59 CEST 2015
IPC: G06K 9/00
G06F 3/01
Applicants: MICROSOFT CORPORATION
Inventors: GUO, Huimin
EDEN, Ibrahim
THUKRAL, Vaibhav
NISTER, David Zachris
Title: GAZE TRACKING THROUGH EYEWEAR
Abstract:
A method (74) to furnish input representing gaze direction in a computer system operatively coupled to a vision system. In this method, a first image of an eye at a first level of illumination is acquired by a camera of the vision system (78). The first image is obtained from the camera, and a second image of the eye corresponding to a second, different level of illumination is also obtained (80). Brightness of corresponding pixels of the first and second images is compared in order to distinguish a reflection of the illumination by the eye from a reflection of the illumination by eyewear (84). The input is then furnished based on the reflection of the illumination by the eye (90).