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US 10,420,464 B2Granted
Gaze tracking system
OwnerSaar Wilf, Alex Aloninventors
Life of this patent
Estimating the term…
Abstract
A method, including illuminating an eye with light from a light source (62) so as to cause a first image (80) of the light source to be formed on a retina (78) of the eye. The method also includes capturing the light returning from the retina with a sensor (148) so as to receive at least a portion of a second image (130) of the first image on the sensor, and analyzing a signal from the sensor in order to determine a gaze direction of the eye.
Claims20
A method, comprising the steps of:
- (a) illuminating an eye with projected light from a light source so as to cause a first image of the light source to be formed on a retina of the eye;
- (b) capturing reflected light returning from the first image on the retina, the capturing with a sensor so as to receive the first image on the sensor as at least a portion of a second image;
- (c) generating a signal corresponding to at least a portion of the second image, based on the first image;
- and
- (d) analyzing the signal to determine a gaze direction of the eye.
2 more elements
An apparatus, comprising:
- a light source configured to illuminate an eye with light so as to cause a first image of the light source to be formed on a retina of the eye;
- a sensor which is configured to capture light returning from the retina so as to receive at least a portion of a second image of the first image on the sensor;
- and a processor which is configured to analyze a signal from the sensor in order to determine a gaze direction of the eye.
An apparatus, comprising:
- an image sensor defining a sensor plane;
- a plurality of lenslets located in proximity to the image sensor and arranged in a lenslet plane parallel to the sensor plane;
- and
- one or more light sources located in the lenslet plane.
1 more element
Dependencies are inferred from the claim text.