US 12,437,500 B2
Information processing apparatus for capturing a moving image using a calculated exposure amount dependent upon parts and orientations of detected human bodies in an image
Shu Kato, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Dec. 13, 2021, as Appl. No. 17/548,993.
Claims priority of application No. 2020-207000 (JP), filed on Dec. 14, 2020.
Prior Publication US 2022/0189138 A1, Jun. 16, 2022
Int. Cl. G06T 7/70 (2017.01); G06T 7/20 (2017.01); G06V 10/60 (2022.01); G06V 40/10 (2022.01)
CPC G06V 10/60 (2022.01) [G06T 7/20 (2013.01); G06T 7/70 (2017.01); G06V 40/10 (2022.01); G06T 2207/10016 (2013.01); G06T 2207/30196 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An information processing system comprising:
a camera configured to detect a human body in an image;
at least one memory storing instructions; and
at least one processor that, upon execution of the stored instructions, are configured to:
identify a part and an orientation of the detected human body in a case where a plurality of human bodies are detected by the camera, wherein the part and the orientation detected are assigned at least one of a first attribute, a second attribute and a third attribute, wherein the first attribute is whether a face has been identified, a head has been identified, or neither the face or the head has been identified, the second attribute is whether an upper half body has been identified, a lower half body has been identified, or a whole body has been identified, and the third attribute is whether a right half body has been identified, a left half body has been identified, or a front has been identified;
in a case where the plurality of human bodies are detected by the camera, measure a luminance value of each of a plurality of photometric areas corresponding to the plurality of human bodies;
determine a weighting value for each photometric area in accordance with the part and the orientation identified, wherein each photometric area corresponds to a combination of attributes including at least two attributes from the first attribute, the second attribute and the third attribute;
calculate an exposure amount for capturing a moving image, from measured luminance values of the plurality of photometric areas corresponding to the plurality of human bodies and determined weighting values for the plurality of photometric areas corresponding to the plurality of human bodies; and
capture the moving image in accordance with the calculated exposure amount,
wherein a weighting value is determined for a photometric area corresponding to a human body whose orientation is identified to be a right half body or a left half body, to be greater than a weighting value for a photometric area corresponding to a human body whose orientation is identified to be a front.