资源大小: 2.41MB
发布时间: 2011-05-09
文件格式: pdf
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Abstract:In this paper, a new technique coined two-dimensional principal component analysis (2DPCA) is developed for image representation. As opposed to PCA, 2DPCA is based on 2D image matrices rather than 1D vectors so the image matrix does not need to be transformed into a vector prior to feature extraction. Instead, an image covariance matrix is constructed directly using the original image atrices, and its eigenvectors are derived for image feature extraction. To test 2DPCA and evaluate its


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