Computationally efficient locally adaptive demosaicing of color filter array images using the dual-tree complex wavelet packet transform.

Most digital cameras use an array of alternating color filters to capture the varied colors in a scene with a single sensor chip. Reconstruction of a full color image from such a color mosaic is what constitutes demosaicing. In this paper, a technique is proposed that performs this demosaicing in a...

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Autores principales:	Jan Aelterman, Bart Goossens, Jonas De Vylder, Aleksandra Pižurica, Wilfried Philips
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e1b49ef5a102438e824bc60aa558e3e0
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id	oai:doaj.org-article:e1b49ef5a102438e824bc60aa558e3e0
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spelling	oai:doaj.org-article:e1b49ef5a102438e824bc60aa558e3e02021-11-18T07:46:53ZComputationally efficient locally adaptive demosaicing of color filter array images using the dual-tree complex wavelet packet transform.1932-620310.1371/journal.pone.0061846https://doaj.org/article/e1b49ef5a102438e824bc60aa558e3e02013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23671575/?tool=EBIhttps://doaj.org/toc/1932-6203Most digital cameras use an array of alternating color filters to capture the varied colors in a scene with a single sensor chip. Reconstruction of a full color image from such a color mosaic is what constitutes demosaicing. In this paper, a technique is proposed that performs this demosaicing in a way that incurs a very low computational cost. This is done through a (dual-tree complex) wavelet interpretation of the demosaicing problem. By using a novel locally adaptive approach for demosaicing (complex) wavelet coefficients, we show that many of the common demosaicing artifacts can be avoided in an efficient way. Results demonstrate that the proposed method is competitive with respect to the current state of the art, but incurs a lower computational cost. The wavelet approach also allows for computationally effective denoising or deblurring approaches.Jan AeltermanBart GoossensJonas De VylderAleksandra PižuricaWilfried PhilipsPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 5, p e61846 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jan Aelterman Bart Goossens Jonas De Vylder Aleksandra Pižurica Wilfried Philips Computationally efficient locally adaptive demosaicing of color filter array images using the dual-tree complex wavelet packet transform.
description	Most digital cameras use an array of alternating color filters to capture the varied colors in a scene with a single sensor chip. Reconstruction of a full color image from such a color mosaic is what constitutes demosaicing. In this paper, a technique is proposed that performs this demosaicing in a way that incurs a very low computational cost. This is done through a (dual-tree complex) wavelet interpretation of the demosaicing problem. By using a novel locally adaptive approach for demosaicing (complex) wavelet coefficients, we show that many of the common demosaicing artifacts can be avoided in an efficient way. Results demonstrate that the proposed method is competitive with respect to the current state of the art, but incurs a lower computational cost. The wavelet approach also allows for computationally effective denoising or deblurring approaches.
format	article
author	Jan Aelterman Bart Goossens Jonas De Vylder Aleksandra Pižurica Wilfried Philips
author_facet	Jan Aelterman Bart Goossens Jonas De Vylder Aleksandra Pižurica Wilfried Philips
author_sort	Jan Aelterman
title	Computationally efficient locally adaptive demosaicing of color filter array images using the dual-tree complex wavelet packet transform.
title_short	Computationally efficient locally adaptive demosaicing of color filter array images using the dual-tree complex wavelet packet transform.
title_full	Computationally efficient locally adaptive demosaicing of color filter array images using the dual-tree complex wavelet packet transform.
title_fullStr	Computationally efficient locally adaptive demosaicing of color filter array images using the dual-tree complex wavelet packet transform.
title_full_unstemmed	Computationally efficient locally adaptive demosaicing of color filter array images using the dual-tree complex wavelet packet transform.
title_sort	computationally efficient locally adaptive demosaicing of color filter array images using the dual-tree complex wavelet packet transform.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/e1b49ef5a102438e824bc60aa558e3e0
work_keys_str_mv	AT janaelterman computationallyefficientlocallyadaptivedemosaicingofcolorfilterarrayimagesusingthedualtreecomplexwaveletpackettransform AT bartgoossens computationallyefficientlocallyadaptivedemosaicingofcolorfilterarrayimagesusingthedualtreecomplexwaveletpackettransform AT jonasdevylder computationallyefficientlocallyadaptivedemosaicingofcolorfilterarrayimagesusingthedualtreecomplexwaveletpackettransform AT aleksandrapizurica computationallyefficientlocallyadaptivedemosaicingofcolorfilterarrayimagesusingthedualtreecomplexwaveletpackettransform AT wilfriedphilips computationallyefficientlocallyadaptivedemosaicingofcolorfilterarrayimagesusingthedualtreecomplexwaveletpackettransform
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Computationally efficient locally adaptive demosaicing of color filter array images using the dual-tree complex wavelet packet transform.

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