US 10,893,210 B2
Imaging apparatus capable of maintaining image capturing at a suitable exposure and control method of imaging apparatus
Takeshi Sakaguchi, Inagi (JP); and Koji Inoue, Tokyo (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Apr. 4, 2018, as Appl. No. 15/944,963.
Claims priority of application No. 2017-076914 (JP), filed on Apr. 7, 2017.
Prior Publication US 2018/0295269 A1, Oct. 11, 2018
Int. Cl. H04N 5/235 (2006.01); H04N 5/232 (2006.01); H04N 5/341 (2011.01); H04N 5/353 (2011.01); H04N 5/369 (2011.01); H04N 5/343 (2011.01); H04N 9/04 (2006.01)
CPC H04N 5/2353 (2013.01) [H04N 5/23212 (2013.01); H04N 5/341 (2013.01); H04N 5/343 (2013.01); H04N 5/353 (2013.01); H04N 5/3532 (2013.01); H04N 5/3535 (2013.01); H04N 5/36961 (2018.08); H04N 9/04551 (2018.08)] 12 Claims
OG exemplary drawing
 
1. An imaging apparatus comprising:
a plurality of pixels; and
at least one processor or circuit programmed to function as:
a scan unit configured to perform a first scan that outputs, from a first pixel of the plurality of pixel, a first signal based on a light flux that has passed through a first region of an exit pupil of imaging optics and a second scan that outputs, from a second pixel of the plurality of pixels, a second signal based on a light flux that has passed through a second region that is a part of the first region;
a prediction unit configured to predict a value of the second signal;
a determination unit configured to determine whether or not to set a second exposure time of the second pixel to be shorter than a first exposure time of the first pixel based on the value of the second signal predicted by the prediction unit; and
an exposure time setting unit configured to set the first exposure time and the second exposure time based on a determination result of the determination unit,
wherein, when the value predicted by the prediction unit exceeds a predetermined threshold, the determination unit determines to set the second exposure time to be shorter than the first exposure time.