Recognition of color face images based on quaternion matrices and NSCT transform

Computer Engineering and Applications ›› 2012, Vol. 48 ›› Issue (2): 164-167.

• 图形、图像、模式识别 • Previous Articles Next Articles

Recognition of color face images based on quaternion matrices and NSCT transform

LI Bingchun, DENG Yong

Network Centre, KaShgar Teachers College, KaShgar, Xinjiang 844000, China
Department of Mathematics, KaShgar Teachers College, KaShgar, Xinjiang 844000, China

Received:1900-01-01 Revised:1900-01-01 Online:2012-01-11 Published:2012-01-11

四元数表示和NSCT变换的彩色人脸图像识别

李丙春，邓勇

喀什师范学院网络中心，新疆喀什 844000
喀什师范学院数学系，新疆喀什 844000

Abstract

Abstract: In this paper, color face image is represented in quaternion real matrices. The coefficients in different scales and directions are obtained by image decomposition using the nonsubsampled contourlet transform. Singular value vector compressed is extracted as the color face image feature, and then the back propagation neural network is used to training and recognition. The experiment indicates that the recognition rate of the proposed method in this paper is improved and it is an effective color face image recognition method．

Key words: quaternion, Nonsubsampled Contourlet（NSCT） transform, singular values, neural network, color face recognition

摘要： 将彩色人脸图像用四元数实矩阵的形式表示，对该矩阵作多级非抽样Contourlet（Nonsubsampled Contourlet，NSCT）变换，在各子带系数上作奇异值分解，进而获得图像的代数特征向量，由神经网络训练和识别。实验结果表明，该方法可以有效地提高彩色人脸图像的识别率，是一种有效的彩色人脸识别方法。

关键词: 四元数, 多级非抽样Contourlet变换, 奇异值, 神经网络, 彩色人脸识别

LI Bingchun, DENG Yong. Recognition of color face images based on quaternion matrices and NSCT transform[J]. Computer Engineering and Applications, 2012, 48(2): 164-167.

李丙春，邓勇. 四元数表示和NSCT变换的彩色人脸图像识别[J]. 计算机工程与应用, 2012, 48(2): 164-167.

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Recognition of color face images based on quaternion matrices and NSCT transform

四元数表示和NSCT变换的彩色人脸图像识别

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