Patent ID: 6532301
Filing Date: 2003-03-11
Classification: G06K

Abstract:
A computer-implemented object recognition process for finding an object being sought in a search image, said object recognition process comprising using a computer to perform the following acts:capturing model images of the object from a plurality of viewpoints around the object; computing a co-occurrence histogram (CH) for each model image; generating a plurality of search windows each comprising a portion of the search image; computing a CH for each search window; assessing a degree of similarity between each model image CH and each of the search window CHs; and designating a search window associated with a search window CH having a degree of similarity to one of the model image CHs which exceeds a prescribed search threshold as potentially containing the object being sought; wherein, a CH is computed by generating a count of every possible pair of pixels in an image that exhibit the same combination of a prescribed pixel characteristic and which are separated by the same distance.