Letters: Facial expression recognition based on two-dimensional discriminant locality preserving projections

Authors:
Ruicong Zhi;Qiuqi Ruan
Affiliations:
Institute of Information Science, Beijing Jiaotong University, 100044 Beijing, China;Institute of Information Science, Beijing Jiaotong University, 100044 Beijing, China
Venue:
Neurocomputing
Year:
2008

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Abstract

In this paper, a novel method called two-dimensional discriminant locality preserving projections (2D-DLPP) is proposed. By introducing between-class scatter constraint and label information into two-dimensional locality preserving projections (2D-LPP) algorithm, 2D-DLPP successfully finds the subspace which can best discriminate different pattern classes. So the subspace obtained by 2D-DLPP has more discriminant power than 2D-LPP, and is more suitable for recognition tasks. The proposed method was applied to facial expression recognition tasks on JAFFE and Cohn-Kanade database and compared with other three widely used two-dimensional methods: 2D-PCA, 2D-LDA and 2D-LPP. The high recognition rates show the effectiveness of the proposed algorithm.