Reduction of interband correlation for landsat image compression

We present a lossless compressor for multispectral images that exploits interband correlations. Each band is divided into blocks, to which a wavelet transform is applied. The wavelet coefficients are predicted by means of a linear combination of coefficients belonging to the same orientation and spa...

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Autores principales: Acevedo, Daniel G., Ruedin, Ana María Clara
Publicado: 2005
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15301834_v2005_n_p390_Acevedo
http://hdl.handle.net/20.500.12110/paper_15301834_v2005_n_p390_Acevedo
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spelling paper:paper_15301834_v2005_n_p390_Acevedo2023-06-08T16:19:42Z Reduction of interband correlation for landsat image compression Acevedo, Daniel G. Ruedin, Ana María Clara Linear combination Spatial location Spectral bands Wavelet coefficients Error detection Image analysis Image coding Image quality Wavelet transforms Image compression We present a lossless compressor for multispectral images that exploits interband correlations. Each band is divided into blocks, to which a wavelet transform is applied. The wavelet coefficients are predicted by means of a linear combination of coefficients belonging to the same orientation and spatial location. The prediction errors are then encoded with an entropy - based coder. Our original contributions are i) the inclusion, among the candidates for prediction, of coefficients of the same location from other spectral bands, ii) the calculation of weights tuned to the landscape being processed, iii) a fast block classification and a different band-ordering for each landscape. Our compressor reduces the size of an image to about a fourth of its original size. Our method is equivalent to LOCO-I, on 3 of the images tested it was superior. It is superior to other lossless compressors: WinZip, JPEG2000 and PNG. © 2005 IEEE. Fil:Acevedo, D.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ruedin, A.M.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2005 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15301834_v2005_n_p390_Acevedo http://hdl.handle.net/20.500.12110/paper_15301834_v2005_n_p390_Acevedo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Linear combination
Spatial location
Spectral bands
Wavelet coefficients
Error detection
Image analysis
Image coding
Image quality
Wavelet transforms
Image compression
spellingShingle Linear combination
Spatial location
Spectral bands
Wavelet coefficients
Error detection
Image analysis
Image coding
Image quality
Wavelet transforms
Image compression
Acevedo, Daniel G.
Ruedin, Ana María Clara
Reduction of interband correlation for landsat image compression
topic_facet Linear combination
Spatial location
Spectral bands
Wavelet coefficients
Error detection
Image analysis
Image coding
Image quality
Wavelet transforms
Image compression
description We present a lossless compressor for multispectral images that exploits interband correlations. Each band is divided into blocks, to which a wavelet transform is applied. The wavelet coefficients are predicted by means of a linear combination of coefficients belonging to the same orientation and spatial location. The prediction errors are then encoded with an entropy - based coder. Our original contributions are i) the inclusion, among the candidates for prediction, of coefficients of the same location from other spectral bands, ii) the calculation of weights tuned to the landscape being processed, iii) a fast block classification and a different band-ordering for each landscape. Our compressor reduces the size of an image to about a fourth of its original size. Our method is equivalent to LOCO-I, on 3 of the images tested it was superior. It is superior to other lossless compressors: WinZip, JPEG2000 and PNG. © 2005 IEEE.
author Acevedo, Daniel G.
Ruedin, Ana María Clara
author_facet Acevedo, Daniel G.
Ruedin, Ana María Clara
author_sort Acevedo, Daniel G.
title Reduction of interband correlation for landsat image compression
title_short Reduction of interband correlation for landsat image compression
title_full Reduction of interband correlation for landsat image compression
title_fullStr Reduction of interband correlation for landsat image compression
title_full_unstemmed Reduction of interband correlation for landsat image compression
title_sort reduction of interband correlation for landsat image compression
publishDate 2005
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15301834_v2005_n_p390_Acevedo
http://hdl.handle.net/20.500.12110/paper_15301834_v2005_n_p390_Acevedo
work_keys_str_mv AT acevedodanielg reductionofinterbandcorrelationforlandsatimagecompression
AT ruedinanamariaclara reductionofinterbandcorrelationforlandsatimagecompression
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