Patent ID: 8611641
Filing Date: 2013-12-17
Classification: G06T,H04N

Abstract:
1. A method of detecting disparity between corresponding pixel positions in a first and second image capturing the same scene, the first and second image being viewable as a stereoscopic image captured using a parallel lens arrangement, the method comprising the steps of: determining the pixel positions of a plurality of points of change of an image property across a section of the first image; determining the pixel positions of a plurality of points of change of said image property across a corresponding section of the second image; comparing the position of one of the points of change in the first image with a subset of the positions of the plurality of points of change of the second image, whereby the subset is determined in accordance with the pixel positions of the points of change in the second image relative to the pixel position of the one of the points of change in the first image and a number of positions of the plurality of points of change of the second image within the subset of the positions of the plurality of points of change of the second image is less than a number of positions of the plurality of points of change of the second image determined; determining the similarity between pixels which have a pixel position adjacent to the point of change in the first image, and the corresponding pixels adjacent to each of the points of change in the subset; and obtaining the disparity in accordance with the determined similarity of the pixels.