ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,555,410, issued on Feb. 17, was assigned to SIGMASTAR TECHNOLOGY LTD. (Fujian, China).
"Sitting posture detection apparatus and method" was invented by Jing-Song Rao (Xiamen, China), Xiang-Wei Lin (Xiamen, China), Fei-Yang Tong (Xiamen, China) and Cheng-Wei Zheng (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sitting posture detection method includes: identifying an input image to generate a face frame under detection and a human frame under detection of a person under detection; calculating a plurality of face angles of the face frame under detection; calculating a plurality of bone feature point coordinates of the human frame under detecti...