method for searching images based on an invariant indexing of images

摘要

Efforts are made to construct a digital index that represents properties or the appearance of portions of an image so as to automatically rediscover in it a sample of the image during a subsequent search, after having set up a sample index in the same way and having compared the indices while searching for similarities. In this invention, the mesh dividing up the image or the sample into portions is founded on points of interest and is not uniform, and the index is made up of information coming, for each portion, from this same portion or from a specified assembly of neighboring portions. Furthermore, a redundant mesh is proposed (FIG. 9A) in order to describe the image several times and to attenuate the consequences of any omissions from the points of interest (E) on the other modeling (FIG. 9B).