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Facial Trait Code

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4 Author(s)
Ping-Han Lee ; MediaTek, Inc., Hsinchu, Taiwan ; Gee-Sern Hsu ; Tsuhan Chen ; Yi-Ping Hung

We propose a facial trait code (FTC) to encode human facial images, and apply it to face recognition. Extracted from an exhaustive set of local patches cropped from a large stack of faces, the facial traits and the associated trait patterns can accurately capture the appearance of a given face. The extraction has two phases. The first phase is composed of clustering and boosting upon a training set of faces with neutral expression, even illumination, and frontal pose. The second phase focuses on the extraction of the facial trait patterns from the set of faces with variations in expression, illumination, and poses. To apply the FTC to face recognition, two types of codewords, hard and probabilistic, with different metrics for characterizing the facial trait patterns are proposed. The hard codeword offers a concise representation of a face, while the probabilistic codeword enables matching with better accuracy. Our experiments compare the proposed FTC to other algorithms on several public datasets, all showing promising results.

Published in:

Circuits and Systems for Video Technology, IEEE Transactions on  (Volume:23 ,  Issue: 4 )