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- W2383610973 abstract "Proposed is an improved signal-denoising approach that is applicable for more general situations by using wavelet-domain Hidden Markov Tree (HMT) models. In current algorithms, serious distortion may be brought when the distribution of signal wavelet coefficients is described by weighted sum of zero-mean Gaussian functions in some situations. In the improved approach, the wavelet coefficients are denoised by optimal estimation, which is described by a general statistical model. It can effectively avoid the potential distortion caused by inappropriate statistical model in describing the distribution of signal wavelet coefficients. The results of numerical simulation illustrate that the MSE of denoised signal can be reduced by more than 80% with the proposed approach in some situations." @default.
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- W2383610973 date "2005-01-01" @default.
- W2383610973 modified "2023-09-26" @default.
- W2383610973 title "An Improved Denoising Algorithm Based on Wavelet-domain Hidden Markov Tree Model" @default.
- W2383610973 hasPublicationYear "2005" @default.
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