US Patent Issued to Meta Platforms Technologies on July 15 for "Absolute phase unwrapping for fringe analysis in an eye tracking application" (Washington Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,360,593, issued on July 15, was assigned to Meta Platforms Technologies LLC (Menlo Park, Calif.).

"Absolute phase unwrapping for fringe analysis in an eye tracking application" was invented by Yatong An (Redmond, Wash.), Youmin Wang (Bellevue, Wash.) and Gaetano Aiello (Redmond, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An eye tracking system for absolute phase unwrapping includes a fringe projector, a camera, and an illumination module. The projector provides a periodical fringe pattern onto the eye and the camera captures a reflection of the fringe pattern. Fourier transform, wavelet transform, phase shifting, and/or variants thereof may be...