Image pickup apparatus including image pickup element having image pickup pixel and focus detection pixel and signal processing method

摘要

An image pickup apparatus 100 includes an image pickup element 101 including a plurality of image pickup pixels that perform a photoelectric conversion for an image formed by a light beam from an image pickup optical system and a plurality of focus detection pixels that perform a photoelectric conversion for an image formed by a divided light beam of the light beam from the image pickup optical system, and a DSP 103 configured to perform a shading correction for a pixel signal from the image pickup element 101, the image pickup element 101 generates a first pixel signal by adding signals from the plurality of image pickup pixels, and generates a second pixel signal without adding a signal from the focus detection pixel, and the DSP 103 performs the shading correction for the first pixel signal and the second pixel signal using correction data different from each other.

主权项

1. An image pickup apparatus comprising:
an image pickup element including a reference region, a plurality of first image pickup pixel portions that perform a photoelectric conversion and a plurality of second pixel portions that are formed so that an opening region of a photoelectric conversion area corresponding to a microlens for the second pixel portion is smaller than an opening region of a photoelectric conversion area corresponding to a microlens for the first image pickup pixel portion; and a signal processor configured to perform a shading correction for a pixel signal from the image pickup element, wherein, in an output mode, the image pickup element generates and outputs a first pixel signal by combining signals from the plurality of first image pickup pixel portions, and generates and outputs a second pixel signal without combining a signal from the second pixel portions, and wherein, in the output mode, the signal processor performs a first correction for the first pixel signal and the second pixel signal using shading correction data based on a pixel signal from the reference region, and performs a second correction only for the second pixel signal using additional shading correction data different from the shading correction data in the first correction.