ALEXANDRIA, Va., June 5 -- United States Patent no. 12,277,657, issued on April 15, was assigned to Snap Inc. (Santa Monica, Calif.).

"Tracking an augmented reality device" was invented by Qi Pan (London), Edward James Rosten (London), Andrew Tristan Spek (London) and Supannee Tanathong (London).

According to the abstract* released by the U.S. Patent & Trademark Office: "An augmented reality device generates an updated position and orientation (pose) value by initially determining, using image-based processing, a pose estimate from a current image frame, a previous image frame and a previous pose. An IMU pose is then obtained from data generated by an inertial measurement unit including motion sensors, and transformation between the pose ...