[1] Lucey P, Cohn J F, Kanade T, et al. The extended Cohn Kanade dataset(CK+): a complete dataset for action unit and emotion specified expression[C]//Computer Vision and Pattern Recognition Workshops(CVPRW), 2010 IEEE Computer Society Conference on. IEEE, 2010: 94-101.
[2] Zhao G, Pietikainen M. Dynamic texture recognition using local binary patterns with an application to facial expressions[J]. Pattern Analysis and Machine Intelligence, IEEE Transactions on, 2007, 29(6): 915-928.
[3] 罗飞, 王国胤, 杨勇. 一种基于Gabor小波特征的人脸表情识别新方法[J]. 计算机科学, 2009, 36(1): 181-215.
[4] Jabid T, Kabir M H, Chae O. Local directional pattern(LDP) for face recognition[C]//Consumer Electronics, 2010 Digest of Technical Papers International Conference on IEEE, 2010: 329-330.
[5] 黄勇. 基于图像优化局部保留投影的人脸表情识别[J]. 计算机工程与应用, 2011, 47(27): 210-215.
[6] 刘伟锋, 李树娟, 王延江. 人脸表情的LBP特征分析[J]. 计算机工程与应用, 2010, 47(2): 149-152.
[7] 梁燕. SVM分类器的扩展及其应用研究[D]. 长沙: 湖南大学, 2008.
[8] Chang C C, Lin C J. LIBSVM: a library for support vector machines[J]. ACM Transactions on Intelligent Systems and Technology, 2010, 2(3): 27.
[9] Guo J M, Chen J L. Two layer features extracted from essential areas for facial expression recognition[C]//System Science and Engineering, 2011 International Conference on IEEE, 2011: 288-291.