Eye tracking system using dense structured light patterns
AssigneeFacebook Technologies, LLC
InventorsJulian Iseringhausen, Robert Dale Cavin, Nicholas Daniel Trail, Douglas Robert Lanman
Life of this patent
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Abstract
An eye tracking system comprises a structured light emitter, a camera assembly, and a controller. The structured light emitter illuminates a portion of an eye of a user with a dense structured light pattern. The dense structured light pattern produces a distorted illumination pattern on the portion of the eye. The camera assembly captures one or more images of the distorted illumination pattern that is associated with the portion of the eye. The controller estimates a position of the eye based on the captured one or more images and a model of the eye. The eye tracking system may be part of a head-mounted display.
Claims18
An eye tracking system comprising:
- a structured light emitter configured to illuminate a portion of an eye of a user with a dense structured light pattern, wherein the dense structured light pattern produces a distorted illumination pattern on the portion of the eye;
- a camera assembly configured to capture one or more images of the distorted illumination pattern that is associated with the portion of the eye;
- and
- a controller configured to estimate a position of the eye based on the captured one or more images and a model of the eye.
A head-mounted display (HMD) comprising:
- a structured light emitter configured to illuminate a portion of an eye of a user with a dense structured light pattern, wherein the dense structured light pattern produces a distorted illumination pattern on the portion of the eye;
- a camera assembly configured to capture one or more images of the distorted illumination pattern that is associated with the portion of the eye;
- and
- a controller configured to estimate a position of the eye based on the captured one or more images and a model of the eye.
A method comprising:
- illuminating, by a structured light emitter, a portion of an eye of a user with a dense structured light pattern, wherein the dense structured light pattern produces a distorted illumination pattern on the portion of the eye;
- capturing, by a camera assembly, one or more images of the distorted illumination pattern that is associated with the portion of the eye;
- and
- estimating, by a controller, a position of the eye based on the captured one or more images and a model of the eye.
Dependencies are inferred from the claim text.