ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,667, issued on Dec. 2, was assigned to Apple Inc. (Cupertino, Calif.).
"Corrected gaze direction and origin" was invented by Julia Benndorf (Mountain View, Calif.), Qichao Fan (San Francisco), Julian K Shutzberg (San Francisco), Paul A Lacey (Davie, Fla.) and Hua Gao (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and apparatus for correcting the gaze direction and the origin (entrance pupil) in gaze tracking systems. During enrollment after an eye model is obtained, the pose of the eye when looking at a target prompt is determined. This information is used to estimate the true visual axis of the eye. The visual axis may then...