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   -> Volume 4, Issue 9


Software: Proposal: Compression with Reversible Embedded Wavelets
 
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schwartz@crc.ricoh.com (Ed Schwartz)
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PostPosted: Fri Dec 06, 2002 9:33 am    
Subject: Software: Proposal: Compression with Reversible Embedded Wavelets
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Software: Proposal: Compression with Reversible Embedded Wavelets

Standard Proposal: Compression with Reversible Embedded Wavelets

RICOH Corporation, and its parent RICOH Company, Ltd., are proud to
offer the continuous-tone still image compression technology called
Compression with Reversible Embedded Wavelets (CREW) to the ISO/IEC
JTC1/SC29/WG1 for the JTC1.29.12 work item. (This is the former JBIG,
Joint Bi-level Image Experts Group, and JPEG, Joint Photographic
Experts Group, international standards committee.)

CREW, developed at the RICOH California Research Center in Menlo Park,
California, is a completely new type of image compression system. CREW
is a unified first lossless and lossy continuous-tone still image
compression system. It is based on a lossless (reversible) wavelet
transform and has embedded quantization allowing quantization
decisions to be made after encoding. It is pyramidal (similar to
hierarchical) and progressive by nature.

The standard proposal and related documents are available via the
World Wide Web at http://www.crc.ricoh.com/CREW and anonymous FTP
in pub/CREW at crc.ricoh.com.

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

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