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Learning discriminative lbp-histogram bins for facial expression recognition

By Caifeng Shan and Tommaso Gritti


Local Binary Patterns (LBP) have been well exploited for facial image analysis recently. In the existing work, the LBP histograms are extracted from local facial regions, and used as a whole for the regional description. However, not all bins in the LBP histogram are necessary to be useful for facial representation. In this paper, we propose to learn discriminative LBP-Histogram (LBPH) bins for the task of facial expression recognition. Our experiments illustrate that the selected LBPH bins provide a compact and discriminative facial representation. We experimentally illustrate that it is necessary to consider multiscale LBP for representing faces, and most discriminative information is contained in uniform patterns. By adopting SVM with the selected multiscale LBPH bins, we obtain the best recognition performance of 93.1% on the Cohn-Kanade database.

Year: 2008
DOI identifier: 10.5244/c.22.27
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
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