Patent ID: 9420193
Filing Date: 2016-08-16
CPC Classification: H04N

Claim Text:
1. An image pickup apparatus comprising: an image pickup device; an electronic shutter control unit configured to control an exposure start time of the image pickup device by an electronic shutter operation; a mechanical shutter control unit configured to control an exposure end time of the image pickup device by a mechanical shutter operation, wherein the electronic shutter control unit is configured to calculate the exposure start time in units of image regions based on an exposure time individually set in units of image regions, and an operation time of a mechanical shutter in units of image regions, and control an electronic shutter to operate at the calculated exposure start time in units of image regions; an exposure time calculation unit configured to calculate an exposure time of a subsequently photographed image in units of image regions according to luminance information in units of image regions obtained from a preliminarily photographed image; and a sensitivity difference compensation unit configured to calculate a difference between the calculated exposure time of the subsequently photographed image in units of image regions and an actual exposure time of the subsequently photographed image in units of image regions, and to execute pixel value correction based on the calculated difference.