Letters: Laplacian bidirectional PCA for face recognition

  • Authors:
  • Wankou Yang;Changyin Sun;Lei Zhang;Karl Ricanek

  • Affiliations:
  • School of Automation, Southeast University, Nanjing 210096, China;School of Automation, Southeast University, Nanjing 210096, China;Biometrics Research Centre, Dept. of Computing, Hong Kong Polytechnic University, Hong Kong;Face Aging Group, Dept. of Computer Science, UNC Wilmington, USA

  • Venue:
  • Neurocomputing
  • Year:
  • 2010

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Abstract

Two-dimensional principal components analysis (2DPCA) needs more coefficients than principal components analysis (PCA) for image representation and hence needs more time for classification. The bidirectional PCA (BDPCA) is proposed to overcome these drawbacks of 2DPCA. Both 2DPCA and BDPCA, however, can work only in Euclidean space. In this paper, we propose Laplacian BDPCA (LBDPCA) to enhance the robustness of BDPCA by extending it to non-Euclidean space. Experimental results on representative face databases show that LBDPCA works well and it surpasses BDPCA.