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Abstract:

We present a nonlinear lossless compressor designed for multispectral images consisting of few bands and having greater spatial than spectral correlation. Our compressor is based on a 2-D integer wavelet transform that reduces spatial correlation. Different models for the statistical dependences of wavelet detail coefficients are analyzed and tested to perform linear inter/intraband predictions. Band, class, scale, and orientation are used as conditioning contexts to calculate predictions, as well as to encode prediction errors with an adaptive arithmetic coder. A new mechanism is proposed for band ordering, based on wavelet fine detail coefficients. Our compressor CLWP outperforms state-of-the-art lossless compressors. It has random access capability and can be applied to compress volumetric data having similar characteristics. © 2009 IEEE.

Registro:

Documento: Artículo
Título:A class-conditioned lossless wavelet-based predictive multispectral image compressor
Autor:Ruedin, A.; Acevedo, D.
Filiación:Departamento de Computación, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Palabras clave:Classification; Lossless compression; Multispectral; Prediction; Wavelet coefficients; Arithmetic coders; Band ordering; Detail coefficients; Integer wavelet transforms; Lossless; Lossless compression; Multi-spectral; Multispectral images; New mechanisms; Prediction errors; Random access; Spatial correlations; Spectral correlation; Statistical dependence; Volumetric data; Wavelet coefficients; Compressors; Forecasting; Image compression; Volumetric analysis; Wavelet transforms
Año:2010
Volumen:7
Número:1
Página de inicio:166
Página de fin:170
DOI: http://dx.doi.org/10.1109/LGRS.2009.2029350
Título revista:IEEE Geoscience and Remote Sensing Letters
Título revista abreviado:IEEE Geosci. Remote Sens. Lett.
ISSN:1545598X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1545598X_v7_n1_p166_Ruedin

Referencias:

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Citas:

---------- APA ----------
Ruedin, A. & Acevedo, D. (2010) . A class-conditioned lossless wavelet-based predictive multispectral image compressor. IEEE Geoscience and Remote Sensing Letters, 7(1), 166-170.
http://dx.doi.org/10.1109/LGRS.2009.2029350
---------- CHICAGO ----------
Ruedin, A., Acevedo, D. "A class-conditioned lossless wavelet-based predictive multispectral image compressor" . IEEE Geoscience and Remote Sensing Letters 7, no. 1 (2010) : 166-170.
http://dx.doi.org/10.1109/LGRS.2009.2029350
---------- MLA ----------
Ruedin, A., Acevedo, D. "A class-conditioned lossless wavelet-based predictive multispectral image compressor" . IEEE Geoscience and Remote Sensing Letters, vol. 7, no. 1, 2010, pp. 166-170.
http://dx.doi.org/10.1109/LGRS.2009.2029350
---------- VANCOUVER ----------
Ruedin, A., Acevedo, D. A class-conditioned lossless wavelet-based predictive multispectral image compressor. IEEE Geosci. Remote Sens. Lett. 2010;7(1):166-170.
http://dx.doi.org/10.1109/LGRS.2009.2029350