17-11 Wavelet Color Shrinkageを用いた雑音除去法についての基礎検討 : 階層ごとの統計的性質とその利用(第17部門画像処理)

概要

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Previously, we have proposed the three different l^p-l^2 color shrinkage schemes, for p=0, 1 and 2, utilizing inter-channel cross-correlations, and have shown that the l^1-l^2 color shrinkage and the l^1-l^2 color shrinkage improve performance of the color-image denoising in the redundant Haar wavelet domain. Superiority or inferiority in performance of the three color shrinkage schemes depends on prior distributions of true wavelet coefficients to be resotored. To improve color-image denoising in the redundant Haar wavelet domain, this paper studies marginal prior distributions of wavelet coefficients of natural clean color images, and addresses the propriety of the three color shrinkage schemes.
一般社団法人映像情報メディア学会の論文
2009-08-26