公开(公告)号：US20250049382A1

公开(公告)日：2025-02-13

申请号：US18705271

申请日：2022-10-28

Applicant: OSAKA UNIVERSITY

Inventor： Yasushi YAGI ,  Shuqiong WU ,  Fumio OKURA ,  Yasushi MAKIHARA ,  Kota AOKI

IPC: A61B5/00 ,  A61B5/11 ,  G06T7/246 ,  G16H50/30

Abstract: Cognitive function evaluation system (100) includes motion detector (20), answer detector (30), and evaluator (40). Motion detector (20) generates frames representing three-dimensional coordinates of joints of subject (SJ) who is performing a predetermined task. The predetermined task includes a physical task and a cognitive task that requires subject (SJ) to answer questions on a cognitive examination. Motion detector (20) capture images of subject (SJ) to generate the frames. The frames are a series of frames generated in time order. Answer detector (30) detects answers to questions on the cognitive examination by subject (SJ). Evaluator (40) outputs motion features based on the frames and evaluates a cognitive function of subject (SJ) based on the motion features and the answers by subject (SJ). The motion features represent a feature of a spatial positional relationship and a feature of temporal variations, of the joints of subject (SJ) in the captured images.