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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2005
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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 |
_version_ |
1768541577418899456 |