<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "An efficient example-based method for CT image denoising based on frequency decomposition and sparse representation"^^ . "In this paper we present an effective example-based method for Gaussian denoising of CT images. In the proposed method, an image is considered as a sum of the three frequency bands: low-band, middle-band and high-band. We assume that the noise component is often mixed into the middle-band and the high-band and thus in order to better preserve the high-frequency details in the image we perform denoising on these two bands. The proposed denoising method is based on a sparse representation model in which a set of standard images is used to construct the example dictionaries. The experimental results demonstrate that the proposed method can preserved very good the high-frequency details. The objective and subjective comparisons also show that our method outperforms other state-of-the-art denoising methods."^^ . "2016" . . . . . . . . . . . . . . "Dinh Hoan"^^ . "Trinh"^^ . "Dinh Hoan Trinh"^^ . . "Thanh Trung"^^ . "Nguyen"^^ . "Thanh Trung Nguyen"^^ . . "Linh Trung"^^ . "Nguyen"^^ . "Linh Trung Nguyen"^^ . . . . "9th International Conference on Advanced Technologies for Communications (ATC)"^^ . . . . . "Hanoi, Vietnam"^^ . . . . . . "An efficient example-based method for CT image denoising based on frequency decomposition and sparse representation (PDF)"^^ . . . "1570294364.pdf"^^ . . "HTML Summary of #2187 \n\nAn efficient example-based method for CT image denoising based on frequency decomposition and sparse representation\n\n" . "text/html" . . . "Electronics and Communications"@en . .