ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,469,219, issued on Nov. 11, was assigned to SNAP INC. (Santa Monica, Calif.).
"Hand surface normal estimation" was invented by Riza Alp Guler (London), Dominik Kulon (London), Himmy Tam (London) and Haoyang Wang (London).
According to the abstract* released by the U.S. Patent & Trademark Office: "An system for augmenting images using hand surface normal estimation is provided. In a model training phase, 3D models of hands are generated using 3D data of hands in a variety of positions. Target normal training data is generated that includes normals of surfaces of the 3D models and synthetic 2D image training data corresponding to the 3D models and the normals. The target normal trainin...