ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,561,954, issued on Feb. 24, was assigned to Tencent Technology Co. Ltd. (Shenzhen, China).

"Liveness detection" was invented by Wenhan Luo (Shenzhen, China), Yaodong Wang (Shenzhen, China) and Wei Liu (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a method for liveness detection, a plurality of images of a user is received. A plurality of facial feature points of the user in the plurality of images is obtained. For each of the plurality of images of the user, facial feature information of a facial feature of the user is determined based on positions of the plurality of facial feature points. An action is determined to be performed by...