Patent ID: 9131130
Filing Date: 2015-09-08
Classification: H04N

Abstract:
1. An image pickup apparatus that includes an image pickup element that photoelectrically converts an optical image of an object to be photographed, arriving through a photographing lens, and outputs an image signal of the photographed object, the apparatus comprising: a memory unit that stores information of a pixel defect of the image pickup element and information for determining an angle of incidence of the optical image arriving at each pixel of the image pickup element; a setting unit that sets an image re-formation plane on which an image is re-formed from the image signal of the photographed object; a pupil division unit that restricts light of the optical image of the object arriving at each pixel of the image pickup element to a light from a specific pupil area of the photographing lens; an image shift unit that determines a shift amount of the image signal of the photographed object corresponding to the image re-formation plane for every pupil area, to shift the image signal on the basis of the image re-formation plane set by the setting unit and the information for determining the angle of the incidence of the optical image arriving at each pixel of the image pickup element; a defect correction unit that corrects an image signal of a defective pixel using the shifted image signal of a pixel other than the defective pixel obtained by the image shift unit, in accordance with the information of the pixel defect; and an image re-formation unit that re-forms an image corresponding to the image re-formation plane from the image signal that is corrected by the defect correction unit.