Camera device, image acquisition method, and storage medium

Abstract

For the purpose of correcting resolution degradation and artifacts caused by interpolation errors of phase difference pixels, the imaging device (100) of the present invention has: an imaging element (101) having normal imaging pixels and phase difference detection pixels; part (200), which shifts the imaging element (101) by the shift amount of fractional pixel units; phase difference pixel correction part (102), which corrects the pixel value obtained by using the phase difference detection The pixels correspond to each other; a pixel storage unit (202), which arranges and stores the corrected pixel values ​​of the imaging element (101) in a storage area corresponding to the shift amount; and a high-resolution image synthesis unit (203), which stores the corrected pixel values A plurality of stored pixel values ​​are synthesized to generate a high-resolution image, and the shift unit (200) shifts the imaging element (101) so that, for a specific color, the same pixel as the phase difference detection pixel of the high-resolution image There are a plurality of pixel values ​​including those of normal imaging pixels, and a high-resolution image synthesis unit (203) synthesizes the plurality of pixel values ​​corresponding to a specific color at a predetermined synthesis ratio.

Description

technical field [0001] The present invention relates to an imaging device, an image acquisition method, an image acquisition program, and a storage medium. Background technique [0002] There is known an imaging device in which optical characteristics of some pixels (hereinafter referred to as phase difference pixels) of an imaging element for imaging an object are different from those of other imaging pixels for focus detection without using a Secondary optical system for focus detection (for example, refer to Patent Document 1.). [0003] Unlike normal imaging pixel apertures, phase difference pixels acquire pixel values ​​different from those of imaging pixels, so the continuity with surrounding pixel values ​​is lost, and flaws can be found when normal imaging processing is continued. As a method of solving this problem, a method of correcting a pixel value corresponding to a position of a phase difference pixel by interpolation using pixel values ​​of surrounding imagi...

AI Technical Summary

Problems solved by technology

[0003] The phase-difference pixel is different from the normal imaging pixel opening, etc., because the pixel value is different from the imaging pixel, so the continuity with the surrounding pixel values ​​is lost, and when the normal imaging process is continued, it will be found that there is a flaw

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