Patent Document ID: 8712109
Application ID: 12437561
Patent Status: 1

Claim One:
1. A system for representing face images to account for pose variations during the comparison of the face images, said system comprising: a memory storing at least a face image; and a processor programmed to: access the face image stored in the memory; sample the accessed face image to generate vectors corresponding to features of the accessed face image; expand each of the generated vectors by a spatial location corresponding thereto in the accessed face image by concatenating pixel coordinates onto the features, the concatenation increasing a dimension of the features by at least two dimensions corresponding to the concatenated pixel coordinates; quantize each of the expanded vectors based on one or more randomized decision trees to enable implicit matching between one or more of the features, the implicit matching occurring due to quantizing each of the expanded vectors resulting from the concatenation, quantization of each of the expanded vectors capturing both deformations in feature value and image domain to generate a set of linear decision boundaries; calculate a histogram of the quantized expanded vectors to represent the accessed image; and associate the calculated histogram with the face image in the memory.