The process comprises the following steps: calculating, for an image, a depth map corresponding to the depth, in the three-dimensional space, of image pixels; calculating, for an image, a resolution map corresponding to the three-dimensional resolution of the image pixels, based on the depth map; matching...http://www.google.com/patents/US7139423?utm_source=gb-gplus-sharePatent US7139423 - Method for building a three-dimensional scene by analyzing a sequence of images