| Principles and Standardization
IEEE Transactions on Image Processing, Vol. 9, No. 8 (Aug. 2000) ęCopyright. 2000,
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
Read the full paper here.
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.