| 摘要 |
An optical axis position estimation processor (312) estimates an optical axis position of a photographing lens (11) on an image-capturing surface of an image-capturing element (21), from a pixel output of a phase difference detection pixel and a pixel output of an imaging pixel. The optical axis position estimation processor (312) includes a relational expression calculator (3121) configured to calculate a relational expression indicative of a relationship between the pixel output of the phase difference detection pixel and an image height, from the pixel output of the phase difference detection pixel and the pixel output of the imaging pixel, and an intersection calculator (3122) configured to calculate, as the optical axis position of the photographing lens (11), an intersection of a plurality of relational expressions calculated in connection with a pair of the phase difference detection pixels, respectively, which are arranged in a detection direction of a phase difference. |
