Patent ID: 7355638

Claim:
An image pickup apparatus comprising: an image pickup unit including a light receiving pixel area including plural pixels each configured to accumulate photoelectric charge and to output signal and a comparative pixel area configured to output always one of dark signal in a state free of photoelectric charge and signal in a state of resetting photoelectric charge; a first storing unit configured to store and hold preliminarily fixed pattern noise (FPN) component values of the light receiving pixel area of the image pickup unit; a second storing unit configured to store and hold preliminarily FPN component value of the comparative pixel area of the image pickup unit; a first correction unit configured to perform predetermined comparison processing between the signal from the comparative pixel area of the image pickup unit and the FPN component value stored and held in the second storing unit, and to correct the FPN component values stored and held in the first storing unit; and a second correction unit configured to correct the signal from the light receiving pixel area of the image pickup unit by the FPN component values after correction by the first correction unit.