US 12,327,427 B2
Image processing device, control method thereof, imaging device, and program storage medium that determine a region of an image including detected first and second regions to be a target subject region
Kentaro Watanabe, Tokyo (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Feb. 14, 2022, as Appl. No. 17/671,086.
Claims priority of application No. 2021-026990 (JP), filed on Feb. 24, 2021.
Prior Publication US 2022/0270399 A1, Aug. 25, 2022
Int. Cl. G06V 10/20 (2022.01); G06V 10/25 (2022.01); G06V 40/16 (2022.01)
CPC G06V 40/165 (2022.01) [G06V 10/25 (2022.01); G06V 10/255 (2022.01); G06V 40/166 (2022.01)] 14 Claims
OG exemplary drawing
 
1. An image processing device that determines a target subject region to be processed from an image for a specific subject, the image processing device comprising:
at least one processor and at least one memory functioning as:
a first detection unit configured to detect a first region corresponding to a part having a first feature of the specific subject from the image;
a second detection unit configured to detect a second region corresponding to a part having a second feature of the specific subject from the image;
an association unit configured to associate the first region detected by the first detection unit and the second region detected by the second detection unit; and
a determination unit configured to determine any region of the image including the first region detected by the first detection unit and the second region detected by the second detection unit as the target subject region,
wherein, if the first region or the second region is determined as the target subject region in a first frame, and, if the first region is not detected by the first detection unit in a second frame and the second region in the second frame corresponding to the second region in the first frame is detected by the second detection unit, the determination unit determines the second region as the target subject region in the second frame,
wherein the second frame is an image generated by imaging at a point in time later than that of the first frame, and
wherein, if the first region corresponding to the specific subject from which the second region is detected is not detected in either the first frame or the second frame, the determination unit does not determine the second region as the target subject region, even if the second region is detected in the second frame.