Patent 11250268 was granted and assigned to NEC on February, 2022 by the United States Patent and Trademark Office.
An image processing device (100) includes a change detection unit (101) that detects a target state change in a person on the basis of an input image, and a determination unit (102) that determines an abnormal state in accordance with a detection obtained by detecting occurrences of the target state change in a plurality of persons.