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Abstract:

We describe a new filtering approach in the wavelet domain for image denoising and compression, based on the projections of details subbands coefficients (resultants of the splitting procedure, typical in wavelet domain) onto the approximation subband coefficients (much less noisy). The new algorithm is called Projection Onto Approximation Coefficients (POAC). As a result of this approach, only the approximation subband coefficients and three scalars are stored and/or transmitted to the channel. Besides, with the elimination of the details subbands coefficients, we obtain a bigger compression rate. Experimental results demonstrate that our approach compares favorably to more typical methods of denoising and compression in wavelet domain.

Registro:

Documento: Artículo
Título:Denoising and compression in wavelet domain via projection onto approximation coefficients
Autor:Mastriani, M.
Filiación:Departamento de Computación, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón I, Intendente Güiraldes 2160, Ciudad Universitaria, (C1428EGA), Buenos Aires, Argentina
Palabras clave:Compression; Denoising; Projections; Wavelets; Approximation coefficients; Compression rates; De-noising; Projections; Subband coefficients; Subbands; Wavelet domain; Wavelets; Compaction; Engineering; Technology; Approximation algorithms
Año:2009
Volumen:35
Página de inicio:622
Página de fin:632
Título revista:World Academy of Science, Engineering and Technology
Título revista abreviado:World Acad. Sci. Eng. Technol.
ISSN:2010376X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_2010376X_v35_n_p622_Mastriani

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Citas:

---------- APA ----------
(2009) . Denoising and compression in wavelet domain via projection onto approximation coefficients. World Academy of Science, Engineering and Technology, 35, 622-632.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_2010376X_v35_n_p622_Mastriani [ ]
---------- CHICAGO ----------
Mastriani, M. "Denoising and compression in wavelet domain via projection onto approximation coefficients" . World Academy of Science, Engineering and Technology 35 (2009) : 622-632.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_2010376X_v35_n_p622_Mastriani [ ]
---------- MLA ----------
Mastriani, M. "Denoising and compression in wavelet domain via projection onto approximation coefficients" . World Academy of Science, Engineering and Technology, vol. 35, 2009, pp. 622-632.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_2010376X_v35_n_p622_Mastriani [ ]
---------- VANCOUVER ----------
Mastriani, M. Denoising and compression in wavelet domain via projection onto approximation coefficients. World Acad. Sci. Eng. Technol. 2009;35:622-632.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_2010376X_v35_n_p622_Mastriani [ ]