Patent ID: 7672482

Claim:
A method of finding an object in an image comprising: (a) describing an object shape by one or more sets of feature points; (b) estimating positions of the feature points; (c) finding new locations for each feature point based on a first appearance model, having a first resolution, of an aggregate appearance of the object in local neighborhoods of all feature points; and (d) constraining the positions of the feature points based on a shape model; wherein step (c) of finding new locations for each feature further comprises: (c1) extracting windows of the image depicting an appearance in the local neighborhood of the feature points; (c2) concatenating the windows to create an aggregate texture vector; (c3) finding an acceptable vector within the appearance model space; (c4) extracting texture targets from the acceptable vector; (c5) comparing targets at locations surrounding the feature points; and (c6) selecting most similar locations.