Patent ID: 7920204

Claim:
An image capture apparatus, comprising: an image capture unit configured to photoelectrically convert an image of a subject and accumulate an electric charge therefrom, and output the electric charge thus accumulated as an image signal; a shutter unit configured to travel a shutter blade unit in a state wherein the shutter blade unit is retracted from a light path of an image capture unit to a state wherein the shutter blade unit is not retracted from the light path of the image capture unit; a first control unit configured to reset the electric charge on the image capture unit in the state wherein the shutter blade unit is retracted from the light path of the image capture unit, commence the accumulation of the electric charge after reset the electric charge on the image capture unit, and read out a first image signal from the image capture unit after a first accumulation time; a second control unit configured to: (i) reset the electric charge on the image capture unit in the state wherein the shutter blade unit is retracted from the light path of the image capture unit in coordination with a predetermined travel characteristic of the shutter blade unit after a first image signal is read out by said first control unit, (ii) commence the accumulation of the electric charge after the reset, (iii) after a second accumulation time, cause the shutter blade unit to travel to the state wherein the shutter blade unit is not retracted from the light path of the image capture unit, and (iv) read out a second image signal from an image capture unit; and a correction unit configured to correct the second image signal based on value obtained by computing a ratio between the first image signal and the second image signal, wherein the correction unit corrects the second image signal by dividing the first image signal and the second image signal respectively into blocks, computing the ratio between the first image signal and the second image signal for each respective corresponding block, and multiplying a result thereof by the second image signal with regard to the corresponding block.