ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,505,556, issued on Dec. 23, was assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) Ltd. (Hong Kong).

"Corner point detection method and apparatus" was invented by Lei Zhang (Ningde, China), Guannan Jiang (Ningde, China) and Fei Chen (Ningde, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A corner point detection method and apparatus, which may improve the efficiency of corner point detection is disclosed. The corner point detection method includes: obtaining a plurality of corner points of a target object in an image to be detected, where the plurality of corner points are corner points on a contour of a first object in the image to be detect...