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Image Denoising With 2D Scale-Mixing Complex Wavelet Transforms
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DOI：10.1109/TIP.2014.2362058.png)
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摘要
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This paper introduces an image denoising procedure based on a 2D scale-mixing complex-valued wavelet transform. Both the minimal (unitary) and redundant (maximum overlap) versions of the transform are used. The covariance structure of white noise in wavelet domain is established. Estimation is performed via empirical Bayesian techniques, including versions that preserve the phase of the complex-valued wavelet coefficients and those that do not. The new procedure exhibits excellent quantitative and visual performance, which is demonstrated by simulation on standard test images.
Keyword:
Image denoising
complex-valued wavelets
scale-mixing wavelet transform
empirical Bayes estimation
bivariate normal distribution
posterior mean
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IF:
13.7
论文数:
1.1W
被引数:
8.4W
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