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基于扰动分析的不相关鉴别矢量集优化方法

, PP. 312-317

Keywords: 扰动分析,优化方法,图像投影鉴别分析,最优鉴别矢量集,特征提取,人脸识别

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Abstract:

在不相关图像投影分析的基础上,重点分析特征值及特征向量的扰动特性,指出病态特征值所对应的特征向量会受到较大扰动.因此,若以该特征向量作为投影轴进行投影,则所得到的特征矢量不能提供有效的鉴别信息.由此,提出不相关鉴别矢量集的优化方法.在ORL人脸库上的实验结果表明,利用该优化方法可简化投影矩阵,从而提高特征提取的效率并使识别率的稳定性得到改善.同时,本文提出的基于扰动分析的优化方法同样适用于对其它线性鉴别矢量集进行优化.

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