Patent ID: 8064687

Claim:
A processing method for the acquisition and matching of a stereopair of images ( 1 , 2 ) including acquiring a stereopair of images and processing the stereopair acquired, the processing method comprising: processing a first image and a second image ( 1 , 2 ) of the stereopair in at least one processing direction and at various levels of resolutions, from a coarsest to a finest, obtaining, for the finest level of resolution, a map of disparities between each point in the first image ( 1 ) and its radiometrically homologous point in the second image ( 2 ), wherein the processing of the first image and second image includes the substeps of: determining, at each point in the first image ( 1 ), one optimum correlation window ( 3 ) so as to obtain a plurality of determined correlation windows for the points of the first image, computing, by correlation with the determined correlation windows, position differences between each point ( 40 ) in the first image ( 1 ) and its radiometrically homologous point ( 41 ) in the second image ( 2 ), obtaining, for a current level of resolution, a map of disparities between each point ( 40 ) in the first image and its radiometrically homologous point ( 41 ) in the second image, and carrying out a barycentric correction operation on the points on said map obtained by said obtaining said substeps being performed for each level of resolution.