Face Recognition Using Kernel UDP

  • Authors:
  • Wankou Yang;Changyin Sun;Jingyu Yang;Helen S. Du;Karl Ricanek

  • Affiliations:
  • School of Automation, Southeast University, Nanjing, People's Republic of China 210096;School of Automation, Southeast University, Nanjing, People's Republic of China 210096;School of Computer Science and Technology, Nanjing University of Science and Technology, Nanjing, People's Republic of China 210094;Department of Computing, The Hong Kong Polytechnic University, Hong Kong, Hong Kong;Face Aging Group, Department of Computer Science, UNC Wilmington, Wilmington, USA

  • Venue:
  • Neural Processing Letters
  • Year:
  • 2011

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Abstract

UDP has been successfully applied in many fields, finding a subspace that maximizes the ratio of the nonlocal scatter to the local scatter. But UDP can not represent the nonlinear space well because it is a linear method in nature. Kernel methods can otherwise discover the nonlinear structure of the images. To improve the performance of UDP, kernel UDP (a nonlinear vision of UDP) is proposed for face feature extraction and face recognition via kernel tricks in this paper. We formulate the kernel UDP theory and develop a two-stage method to extract kernel UDP features: namely weighted Kernel PCA plus UDP. The experimental results on the FERET and ORL databases show that the proposed kernel UDP is effective.