Patent ID: 8593547
Filing Date: 2013-11-26
Classification: H04N

Abstract:
1. An image processing apparatus having an image sensor having a plurality of unit cells that each includes a plurality of photoelectric conversion elements each of which outputs an image signal, and the plurality of photoelectric conversion elements have a function of obtaining a first output signal using the image signals of a plurality of first photoelectric conversion elements and a second output signal using the image signals of a plurality of second photoelectric conversion elements for generating a pair of first image and second image to be used for focus detection, comprising: a detection unit that detects a phase difference between the first image generated using the first outputs of the plurality of unit cells and the second image generated using the second outputs of the plurality of unit cells; a determination unit that determines whether any of the plurality of photoelectric conversion elements is defective; and a correction unit that, if a photoelectric conversion element that is determined to be defective by the determination unit is one of the second photoelectric conversion elements, corrects the second output of a unit cell including the second photoelectric conversion element that is determined to be defective using the first output of a unit cell located at a position shifted by the phase difference from the unit cell including the second photoelectric conversion element that is determined to be defective.