Method and system for eye tracking using speckle patterns
US11237631B2 · kind B2 · utility
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2References
7Claims
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Key dates
| Filing date | Feb 4, 2021 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Feb 4, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30041
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of tracking an eye gaze include obtaining a pre-calibrated speckle map of the eye of the user, determining a starting position of the eye using the pre-calibrated speckle map, and tracking movement of the eye relative to the starting position by: directing a light beam at the eye, detecting a plurality of speckle patterns formed at a detector by a portion of the light beam reflected by the eye, and tracking movement of the eye relative to the starting position by tracking the plurality of speckle patterns from frame to frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.