Feature Extraction Method of Maximum Scatter Difference Based on Preserving Projection
WANG Jian-Guo1,2, YANG Wan-Kou1, YANG Jing-Yu1
1.School of Computer Science and Technology, Nanjing University of Science and Technology,Nanjing 210094 2.Network and Education Center, Tangshan College, Tangshan 063000
Abstract：Firstly, the unsupervised discriminant projection (UDP) criterion is modified. Then, the feature extraction method of the maximum scatter difference based on preserving projection is proposed on the basis of the modified discriminant criterion. The proposed method adopts the difference of both nonlocal scatter and local scatter as discriminant criterion. Thus, the singular problem of local scatter caused by small sample size problem in UDP linear discriminant analysis is avoided. Finally, experimental results on Yale and FERET face databases demonstrate the effectiveness of the proposed method.
王建国，杨万扣，杨静宇. 基于保持投影的最大散度差的特征抽取方法*[J]. 模式识别与人工智能, 2009, 22(4): 610-613.
WANG Jian-Guo, YANG Wan-Kou, YANG Jing-Yu. Feature Extraction Method of Maximum Scatter Difference Based on Preserving Projection. , 2009, 22(4): 610-613.
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2009, Vol. 22 
