OCR-based image compression

Gal, Yaniv, Sorin, Alexander, Helper, Andrei and Wallach, Eugene (2002). OCR-based image compression. US6487311.

Creator Gal, Yaniv
Sorin, Alexander
Helper, Andrei
Wallach, Eugene
Patent title OCR-based image compression
Date of issue 2002-11-26
Patent owner International Business Machines Corporation
Patent number US6487311
Country of origin United States of America
Language eng
Subjects 280203 Image Processing
280208 Computer Vision
Abstract/Summary A method for compressing a digitized image of a document using optical character recognition (OCR). The method includes performing optical character recognition (OCR) on the digitized image, identifying, based, at least in part, on a result of the performing step, a plurality of classes of characters comprised in the image, each the class of characters having an associated character value and comprising at least one character, pruning each class of characters, thereby producing information describing the plurality of classes of characters and a residual image, and utilizing the information describing the plurality of classes of characters and the residual image as a compressed digitized image in further processing.Related methods and apparatus are also disclosed.
Q-Index Status Provisional Code
Institutional Status Non-UQ

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Created: Fri, 04 Feb 2011, 01:41:16 EST by Dr Yaniv Gal on behalf of Centre for Medical Diagnostic Technologies in Qld