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• W4297492720 abstract "Abstract The adaptive block size processing method in different image areas makes block-matching and 3D-filtering (BM3D) have a very good image denoising effect. Based on these observation, in this paper, we improve BM3D in three aspects: adaptive noise variance estimation, domain transformation filtering and nonlinear filtering. First, we improve the noise-variance estimation method of principle component analysis using multilayer wavelet decomposition. Second, we propose compressive sensing based Gaussian sequence Hartley domain transform filtering to reduce noise. Finally, we perform edge-preserving smoothing on the preprocessed image using the guided filtering based on total variation. Experimental results show that the proposed denoising method can be competitive with many representative denoising methods on the evaluation criteria of PSNR. However, it is worth further research on the visual quality of denoised images." @default.
• W4297492720 created "2022-09-29" @default.
• W4297492720 creator A5005322009 @default.
• W4297492720 creator A5034080491 @default.
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• W4297492720 date "2022-09-28" @default.
• W4297492720 modified "2023-10-05" @default.
• W4297492720 title "Blind-noise image denoising with block-matching domain transformation filtering and improved guided filtering" @default.
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• W4297492720 doi "https://doi.org/10.1038/s41598-022-20578-w" @default.
• W4297492720 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36171466" @default.
• W4297492720 hasPublicationYear "2022" @default.
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