Patent ID: 8830379
Filing Date: 2014-09-09
Classification: H04N

Abstract:
1. An image pickup apparatus, comprising: an optical imaging system for forming an object image; an image pickup device including a plurality of pixels that photoelectrically converts the object image; a defocus quantity calculation section for calculating a defocus quantity based on a phase difference between a plurality of signals for focus detection obtained from a plurality of pixels for focus detection that respectively receive a light flux that passes through a different pupil region of the optical imaging system; a focusing section for driving the optical imaging system so as to achieve an in-focus state, in accordance with the defocus quantity calculated at the defocus quantity calculation section; an addition practicability determination section for determining a practicability of performing inter-frame addition on the plurality of signals for focus detection before calculating the defocus quantity, based on an analysis result of a signal component of the object image; and an inter-frame addition processing section for performing inter-frame addition on the plurality of signals for focus detection based on a determination result of the addition practicability determination section, wherein the analysis result is a quantity of a high frequency component included in the plurality of signals for focus detection obtained from the plurality of pixels for focus detection.