Image pickup apparatus, control method therefore and storage medium employing phase difference pixels

摘要

A digital signal processing unit 17 extracts a determination block which includes a predetermined number of pixels and has a pixel to be corrected as the center. When an edge of an object image is present in each determination block, the direction of the edge is a direction perpendicular to a direction in which a phase difference is detected by the phase difference detecting pixel, and the edge overlaps the pixel to be corrected, the digital signal processing unit 17 performs interpolation correction for an output signal from the pixel to be corrected in the block.

主权项

1. An image processing device that processes a captured image signal output from a solid-state imaging element including a plurality of imaging pixels and a plurality of phase difference detecting pixels which are arranged in a two-dimensional array on a light receiving surface, comprising:
a gain correction processing unit that performs a gain correction process of multiplying an output signal from the phase difference detecting pixel, which is included in the captured image signal, by a gain value to correct the output signal; an interpolation correction processing unit that performs an interpolation correction process of replacing the output signal from the phase difference detecting pixel, which is included in the captured image signal, with a signal that is generated using an output signal from the imaging pixel, which is arranged in the vicinity of the phase difference detecting pixel and detects a color which is the same color as the phase difference detecting pixel, to correct the output signal from the phase difference detecting pixel; and a correction unit that corrects each of the output signals from the plurality of phase difference detecting pixels, which are included in the captured image signal, using the gain correction processing unit or the interpolation correction processing unit, wherein the correction unit corrects the output signal from the phase difference detecting pixel to be corrected, using the interpolation correction processing unit, in a first case in which an edge of an object image that extends in a direction perpendicular to a direction in which a phase difference is detected by the phase difference detecting pixel is present in a determination area including the phase difference detecting pixel to be corrected and the plurality of imaging pixels which are arranged in the vicinity of the phase difference detecting pixel to be corrected and detect the same color as the phase difference detecting pixel to be corrected or a second case in which the edge of the object image that extends in the direction perpendicular to the direction in which the phase difference is detected is present in the determination area and overlaps the phase difference detecting pixel to be corrected.