Patent ID: 9131222
Filing Date: 2015-09-08
Classification: G06T,H04N

Abstract:
1. An image processing device comprising: a phase difference detection portion configured to detect a phase difference between parallax images by performing a correlation value calculation with a plurality of parallax images, and generate phase difference distribution in an image, wherein the phase difference detection portion performs the phase difference detection individually along two or more directions different from each other to determine individual results along each of the two or more directions, and generates the phase difference distribution by combining the individual results of the phase difference detection regarding the two or more directions, wherein the phase difference detection portion makes a determination as to reliability of phase difference for each of the results of the phase difference detection regarding the two or more directions on each unit area basis, regarding at least one of parallax images of the two or more directions, the phase difference detection portion executes edge detection processing to determine a parallax direction of the at least one of parallax images, the phase difference detection portion performs the phase difference detection along the same direction as a direction of the edge detection processing for a unit area from which no edge area is detected in the edge detection processing, the phase difference detection portion performs the phase difference detection along one of directions different from the direction of the edge detection processing for a unit area from which an edge area is detected in the edge detection processing, and the phase difference detection portion employs the result of the phase difference detection regarding a direction of highest reliability on each unit area basis and combines the results, based on results of the determination as to reliability, and a direction different from a direction of a detected edge area on each unit area basis and combines the results, based on a result of the edge detection, to thereby generate the phase difference distribution.