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Principles and Standardization into JPEG-LS
IEEE Transactions on Image Processing, Vol. 9, No. 8 (Aug. 2000) ęCopyright. 2000, IEEE.

by Marcelo J. Weinberger and Gadiel Seroussi of HP Labs' Information Theory Research Group (Palo Alto, CA, USA) and Guillermo Sapiro, Department of Electrical and Computer Engineering, University of Minnesota

LOCO-I (LOw COmplexity LOssless COmpression for Images) is the algorithm at the core of the ISO/ITU standard for lossless and near-lossless compression of continuous tone-images, JPEG-LS. The paper discusses the principles underlying the design of LOCO-I, and its standardization into JPEG-LS.
Read the full paper here. Requires Adobe Acrobat.

About the Authors:

Marcelo J. Weinberger is a department scientist with HP Labs, Advanced Studies, where his research encompasses topics in information theory, particularly source coding and statistical modeling. He is a co-author of the algorithm at the core of the recent JPEG-LS lossless image compression standard, as well as a contributor to the coding algorithm of the JPEG-2000 standard.
Currently, Dr. Weinberger is working on the application of source coding techniques to various sequential decision problems. He is an associate editor for source coding for the IEEE Transactions on Information Theory.

Gadiel Seroussi is Director of Information Theory Research at Hewlett-Packard Laboratories. He is a co-author of the algorithm at the core of the recent JPEG-LS lossless image compression standard, as well as a contributor to the coding algorithm of the JPEG-2000 standard. Dr. Seroussi is a Fellow of the IEEE, cited "for contributions to the theory and practice of error correction and data compression algorithms and architectures."
His research interests include the mathematical foundations and practical applications of information theory, error correcting codes, data and image compression and cryptography.

Guillermo Sapiro is an Associate Professor in the Department of Electrical and Computer Engineering at the University of Minnesota. He worked at HP Labs from 1994 to 1997. He was part of the team that authored the algorithm at the core of the JPEG-LS lossless image compression standard.

 

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