Facial expression recognition based on local binary patterns and local fisher discriminant analysis

Authors:
Shiqing Zhang;Xiaoming Zhao;Bicheng Lei
Affiliations:
School of Physics and Electronic Engineering, Taizhou University, Taizhou, China;Department of Computer Science, Taizhou University, Taizhou, China;School of Physics and Electronic Engineering, Taizhou University, Taizhou, China
Venue:
WSEAS Transactions on Signal Processing
Year:
2012

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Abstract

Automatic facial expression recognition is an interesting and challenging subject in signal processing, pattern recognition, artificial intelligence, etc. In this paper, a new method of facial expression recognition based on local binary patterns (LBP) and local Fisher discriminant analysis (LFDA) is presented. The LBP features are firstly extracted from the original facial expression images. Then LFDA is used to produce the low dimensional discriminative embedded data representations from the extracted high dimensional LBP features with striking performance improvement on facial expression recognition tasks. Finally, support vector machines (SVM) classifier is used for facial expression classification. The experimental results on the popular JAFFE facial expression database demonstrate that the presented facial expression recognition method based on LBP and LFDA obtains the best recognition accuracy of 90.7% with 11 reduced features, outperforming the other used methods such as principal component analysis (PCA), linear discriminant analysis (LDA), locality preserving projection (LPP).