US 11,812,158 B2
Image capture device having control to insert or remove filter, control method, and storage medium
Tomohiro Kawamoto, Tokyo (JP); and Takao Saito, Chiba (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Dec. 6, 2021, as Appl. No. 17/543,552.
Claims priority of application No. 2020-207883 (JP), filed on Dec. 15, 2020.
Prior Publication US 2022/0191378 A1, Jun. 16, 2022
Int. Cl. H04N 23/73 (2023.01)
CPC H04N 23/73 (2023.01) 14 Claims
OG exemplary drawing
 
1. An image capture device comprising:
an image capture circuit configured to capture an image formed by an image capture optical system;
a processor; and
a memory containing instructions that, when executed by the processor, cause the processor to function as:
a control unit configured to control exposure by determining an exposure time of each of a plurality of pixel groups including one or more pixels on an image capture surface of the image capture circuit,
a determination unit configured to, on a basis of the exposure time determined by the control unit, determine whether an image capture mode is to be a first mode in which an infrared-attenuating filter configured to attenuate infrared rays is inserted in an optical path of the image capture optical system or a second mode in which the infrared-attenuating filter is removed from the optical path of the image capture optical system, and
a filter control unit configured to control insertion and removal of the infrared-attenuating filter depending on the image capture mode determined by the determination unit,
wherein the exposure time of each of the plurality of pixel groups can be different,
wherein the determination unit is configured to determine that the image capture mode is to be the first mode in a case where the exposure time of at least one of the plurality of pixel groups is smaller than a first reference value, and determine that the image capture mode is to be the second mode in a case where the exposure time of at least one of the plurality of pixel groups is larger than a second reference value.