US Patent 7382926 Transcoding a JPEG2000 compressed image

Patent 7382926 was granted and assigned to Eastman Kodak on June, 2008 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Eastman Kodak

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

73829260

Patent Inventor Names

Rajan L. Joshi0

Majid Rabbani0

Date of Patent

June 3, 2008

Patent Application Number

108811070

Date Filed

June 30, 2004

Patent Primary Examiner

‌

Matthew Bella

Patent abstract

A JPEG2000 compressed image is transcoded to a lower bit-rate or lower resolution, or both, without having to decompress the initial JPEG2000 image and then recompress it to a lower bit-rate and/or resolution. Instead, arithmetic decoding is performed only to the nearest higher bit-rate layer, up to the desired resolution, before performing rate-distortion optimization to produce the transcoded image.