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Journal of Electronic Imaging

Uncorrelated regularized local Fisher discriminant analysis for face recognition
Author(s): Zhan Wang; Qiuqi Ruan; Gaoyun An
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Paper Abstract

A local Fisher discriminant analysis can work well for a multimodal problem. However, it often suffers from the undersampled problem, which makes the local within-class scatter matrix singular. We develop a supervised discriminant analysis technique called uncorrelated regularized local Fisher discriminant analysis for image feature extraction. In this technique, the local within-class scatter matrix is approximated by a full-rank matrix that not only solves the undersampled problem but also eliminates the poor impact of small and zero eigenvalues. Statistically uncorrelated features are obtained to remove redundancy. A trace ratio criterion and the corresponding iterative algorithm are employed to globally solve the objective function. Experimental results on four famous face databases indicate that our proposed method is effective and outperforms the conventional dimensionality reduction methods.

Paper Details

Date Published: 4 August 2014
PDF: 9 pages
J. Electron. Imag. 23(4) 043017 doi: 10.1117/1.JEI.23.4.043017
Published in: Journal of Electronic Imaging Volume 23, Issue 4
Show Author Affiliations
Zhan Wang, Beijing Jiaotong Univ. (China)
Qiuqi Ruan, Beijing Jiaotong Univ. (China)
Gaoyun An, Beijing Jiaotong Univ. (China)

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