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   -> Volume 4, Issue 4

Preprint: CREW: Compression with Reversible Embedded Wavelets
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Author Message "Edward L. Schwartz"

PostPosted: Mon Dec 02, 2002 6:07 pm    
Subject: Preprint: CREW: Compression with Reversible Embedded Wavelets
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Preprint: CREW: Compression with Reversible Embedded Wavelets

Title: CREW: Compression with Reversible Embedded Wavelets
Authors: Ahmad Zandi, James D. Allen, Edward L. Schwartz, and Martin Boliek
RICOH California Research Center

Compression with reversible embedded wavelets (CREW) is a unified
lossless and lossy continuous-tone still image compression system. It
is a wavelet based compression scheme, that uses a "reversible"
approximation of one of the best wavelet filters. Reversible wavelets
are non-linear filters which implement exact-reconstruction systems
with minimal precision integer arithmetic.

CREW provides state of the art lossless compression of medical images
(> 8-bit deep), and state of the art lossy and lossless compression of
8-bit deep images with a single system. CREW has reasonable software
and hardware implementations. Applications for CREW include medical,
prepress, satellite and document image compression.

Available though WWW at

Edward Schwartz
RICOH California Research Center
2882 Sand Hill Rd Suite 115
Menlo Park, CA 94025-7022

(415) 496-5712
(415) 854-8740 FAX
All times are GMT + 1 Hour
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