Web of Science: 8 citations, Scopus: 9 citations, Google Scholar: citations
Isorange pairwise orthogonal transform
Blanes Garcia, Ian (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions)
Hernández Cabronero, Miguel (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions)
Aulí Llinàs, Francesc (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions)
Serra Sagristà, Joan (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions)
Marcellin, Michael W. (University of Arizona. Department of Electrical and Computer Engineering)

Date: 2015
Abstract: Spectral transforms are tools commonly employed in multi- and hyperspectral data compression to decorrelate images in the spectral domain. The Pairwise Orthogonal Transform (POT) is one such transform that has been specifically devised for resource-constrained contexts like those found on board satellites or airborne sensors. Combining the POT with a 2D coder yields an efficient compressor for multi- and hyperspectral data. However, a drawback of the original POT is that its dynamic range expansion -i. e. , the increase in bit depth of transformed images- is not constant, which may cause problems with hardware implementations. Additionally, the dynamic range expansion is often too large to be compatible with the current 2D standard CCSDS 122. 0-B-1. This paper introduces the Isorange Pairwise Orthogonal Transform, a derived transform that has a small and limited dynamic range expansion, compatible with CCSDS 122. 0-B-1 in almost all scenarios. Experimental results suggest that the proposed transform achieves lossy coding performance close to that of the original transform. For lossless coding, the original POT and the proposed isorange POT achieve virtually the same performance.
Grants: Ministerio de Economía y Competitividad TIN-2012-38102-C03-03
Ministerio de Ciencia e Innovación RYC-2010-05671
Ministerio de Educación, Cultura y Deporte FPU-AP2010-0172
Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-691
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Language: Anglès
Document: Article ; recerca ; Versió acceptada per publicar
Subject: On-board multi- and hyperspectral image coding ; Progressive lossy-to-lossless ; Limited dynamic range expansion ; Pairwise orthogonal transform (POT)
Published in: IEEE transactions on geoscience and remote sensing, Vol. 13, no. 6 (June 2015) , p. 3361-3372, ISSN 1558-0644

DOI: 10.1109/TGRS.2014.2374473


Post-print
13 p, 2.2 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Engineering > Group on Interactive Coding of Images (GICI)
Articles > Research articles
Articles > Published articles

 Record created 2015-02-27, last modified 2025-08-13



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