中文摘要：

提出了一种基于局部二元模式（LBP）和局部保全投影（LPP）相结合的面部表情识别方法。使用LBP算子对图像分块处理，综合人脸局部和整体的特征；再使用LPP对表情特征降维，最后采用支持向量机对面部表情分类。在日本女性人脸表情库上实验表明，本文提出的方法有更好的识别率和更快的识别速度。

英文摘要：

A method combining Local Binary Pattem（LBP） with Locality Preserving Projections（LPP） was presented for face expression recognition. First, the algorithm processes facial expression images with LBP operator and integrates local and global characteristics of the face. Then Locality Preserving Projections（LPP） method is used for feature dimension reduction and SVM for classification. The algorithm is experimented in Japanese Female Facial Expression database（JAFFE database）. The results show that the proposed algorithm is more effective.