ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,225, issued on Oct. 28, was assigned to Apple Inc. (Cupertino, Calif.).
"Methods for infield camera calibrations" was invented by Shuntaro Yamazaki (Cupertino, Calif.), Ravi Teja Sukhavasi (Fremont, Calif.), Oleg Naroditsky (San Francisco), Stergios Roumeliotis (Los Altos Hills, Calif.) and Daniel C Byrnes (San Francisco).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods for performing a calibration process for outward-facing cameras on devices such as head-mounted display devices are disclosed. Extrinsic parameters of the camera are first estimated using inputs to the calibration process such as information from an inertial measurement unit and...