Eye gesture tracking
AssigneeArtilux, Inc.
InventorsYun-Chung Na, Chien-Lung Chen, Han-Din Liu, Shu-Lu Chen
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Abstract
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for eye gesture recognition. In one aspect, a method includes obtaining an electrical signal that represents a measurement, by a photodetector, of an optical signal reflected from an eye and determining a depth map of the eye based on phase differences between the electrical signal generated by the photodetector and a reference signal. Further, the method includes determining gaze information that represents a gaze of the eye based on the depth map and providing output data representing the gaze information.
Claims11
A computer-implemented method, comprising:
- obtaining an electrical signal including a first phase generated by one or more photodetectors from a modulated optical signal reflected from an eye, wherein the modulated optical signal is generated by one or more optical sources that are biased by a modulation signal including a second phase;
- determining a depth map of the eye based on phase differences between the first phase of the electrical signal generated by the one or more photodetectors from the modulated optical signal reflected from the eye and a third phase of a reference signal in sync with the second phase of the modulation signal, wherein the depth map of the eye comprises a three-dimensional model representing the eye;
- determining a gaze information that represents a gaze of the eye based on the depth map;
- and
- providing output data representing the gaze information.
Dependencies are inferred from the claim text.