| 摘要 |
An apparatus for detecting disparity is described. This apparatus detects the 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 apparatus comprising: a determiner operable to determine the pixel positions of a plurality of points of change of an image property across a section of the first image and to determine the pixel positions of a plurality of points of change of said image property across a corresponding section of the second image; a comparator operable to compare 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 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; wherein the determiner is operable to determine the similarity between pixels which have a pixel position adjacent the point of change in the first image, and the corresponding pixels adjacent each of the points of change in the subset; and an obtainer operable to obtain the disparity in accordance with the determined similarity of the pixels. |
