Patent ID: 9578255
Date: 2017-02-21
CPC Classifications: G01J,H04N

Claim:
1. An image pickup apparatus comprising: an image pickup unit; and at least one processor configured to perform: first calculating light amount change characteristics of light from an object, based on a plurality of photometric values obtained at a period shorter than a first period; second calculating the light amount change characteristics, based on luminance change information with a reference image, the reference image being an image obtained through charge accumulation using said image pickup unit while differentiating start timing on a region-by-region basis by taking more time than required to obtain the plurality of photometric values by said image pickup unit; storing characteristics information concerning the light amount change characteristics calculated in a memory based on the plurality of photometric values by said first calculating; suppression processing for suppressing influence of change in an amount of light from an object, on an image acquired by said image pickup unit; and in a case where the characteristics information has been stored in said memory, first controlling for not causing said image pickup unit to obtain the reference image, but causing said suppression processing based on the characteristics information stored in said memory.