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   -> Volume 4, Issue 4


Preprint: CREW: Compression with Reversible Embedded Wavelets
 
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schwartz@crc.ricoh.com "Edward L. Schwartz"
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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
http://www.crc.ricoh.com/misc/crc-publications.html

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

(415) 496-5712
(415) 854-8740 FAX
schwartz@crc.ricoh.com
All times are GMT + 1 Hour
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