US 11,055,871 B2
Image capturing apparatus, control method for the same, and storage medium
Hidetaka Uemura, Kawasaki (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Aug. 27, 2019, as Appl. No. 16/551,949.
Claims priority of application No. JP2018-167212 (JP), filed on Sep. 6, 2018.
Prior Publication US 2020/0082559 A1, Mar. 12, 2020
Int. Cl. G06T 7/70 (2017.01); G06T 5/50 (2006.01); G06T 7/246 (2017.01)
CPC G06T 7/70 (2017.01) [G06T 5/50 (2013.01); G06T 7/246 (2017.01); G06T 2207/30168 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An image capturing apparatus comprising:
an image sensor configured to capture a subject image;
a movement device capable of moving a relative position of the image sensor and an image circle of a mounted lens; and
at least one processor or circuit configured to function as the following units:
a control unit configured to acquire foreign substance information, which is information on a foreign substance sticking to at least one of the image sensor and an optical element in front of the image sensor, from a plurality of images obtained by causing the image sensor to perform a plurality of instances of image capture while moving the relative position of the image sensor and the image circle using the movement device,
wherein the control unit determines whether or not the size of the image circle is a size that covers the entire region of the image sensor, and
wherein if it is determined that the size of the image circle is smaller than a size that covers the entire region of the image sensor, the control unit acquires the foreign substance information from the plurality of images obtained by causing the image sensor to perform the plurality of instances of image capture.
 
9. A method for controlling an image capturing apparatus including an image sensor configured to capture a subject image, the method comprising:
determining whether or not a size of an image circle of a mounted lens is a size that covers the entire region of the image sensor; and
if it is determined that the size of the image circle is smaller than the size that covers the entire region of the image sensor, acquiring foreign substance information, which is information on a foreign substance sticking to at least one of the image sensor and an optical element in front of the image sensor, from a plurality of images obtained by causing the image sensor to perform a plurality of instances of image capture while moving the relative position of the image sensor and the image circle.
 
10. A non-transitory computer-readable storage medium storing a program for causing a computer to execute steps of a control method for an image capturing apparatus including an image sensor for capturing a subject image, the method comprising:
determining whether or not a size of an image circle of a mounted lens is a size that covers the entire region of the image sensor; and
if it is determined that the size of the image circle is smaller than the size that covers the entire region of the image sensor, acquiring foreign substance information, which is information on a foreign substance sticking to at least one of the image sensor and an optical element in front of the image sensor, from a plurality of images obtained by causing the image sensor to perform a plurality of instances of image capture while moving the relative position of the image sensor and the image circle.