Patent ID: 9473694
Filing Date: 2016-10-18
CPC Classification: G02B,G03B,H04N

Claim Text:
1. An image processing device comprising: an image acquisition section that acquires first and second images, based on first and second image signals that are output from an image pick-up device that includes first and second pixel groups that output the first and second image signals due to respective images being formed by a pupil-divided subject-image that has passed through first and second regions of an imaging lens that includes a focusing lens that is moveable along an optical axis direction; a movement section that moves the focusing lens in the optical axis direction; a parallax computation section that computes parallax indicating a displacement amount between each pixel in the first image that is acquired by the image acquisition section and each respective corresponding pixel in the second image that is acquired by the image acquisition section; a determination section that, based on a factor defining a depth representing a permissible range for an acceptable state of focus and based on the parallax computed by the parallax computation section, determines an operation movement ratio, for converting an operation amount, that instructs movement of the focusing lens, into a movement amount of the focusing lens, by using a function including the operation movement ratio as a dependent variable and an independent variable determined according to the factor and the parallax; a control section that controls the movement section to move the focusing lens by an amount equivalent to the movement amount determined based on the operation movement ratio determined by the determination section and based on the operation amount; a generation section that generates a first display image based on an image signal that is output from the image pick-up device, and generates a second display image for use in focus verification based on the first and second images; a display section that displays images; and a display controller that performs control to display the first display image, that is generated by the generation section, on the display section, and to display the second display image, that is generated by the generation section, within a display region of the first display image.