公开(公告)号：US20220222859A1

公开(公告)日：2022-07-14

申请号：US17595182

申请日：2019-05-30

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Motohiro TAKAGI ,  Kazuya HAYASE ,  Takayuki DNISHI ,  Atsushi SHIMIZU

IPC: G06T7/00

Abstract: A difference detection apparatus includes: an acquisition unit configured to acquire a difference level indicating a level of a difference between a first image that is an image of a first spatial region and a second image that is an image of a second spatial region located at a substantially same position as the first spatial region, first probability data indicating a probability that a target object is present in the first spatial region, and second probability data indicating a probability that the target object is present in the second spatial region; and a detection unit configured to associate the difference level, the first probability data, and the second probability data, and detect, based on a result of the association, a region where a difference occurs between the first image and the second image.