Method for comparing image sections to determine similarity therebetween

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United States of America Patent

PATENT NO 5539841
SERIAL NO

08430106

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Abstract

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A method for comparing two image sections consisting of a plurality of image signals, or pixels, where each image section represents a token (e.g., character, symbol, glyph, string of components, or similar units of semantic understanding), in order to identify when similar tokens are present within the image sections. The invention further operates without the need for individually detecting and/or identifying the components making up the tokens. In one embodiment, the method relies upon the detection of connected components within words to first isolate individual word tokens and then applies a two stage process where dilated images of the tokens are compared with model representations of the tokens to determine the relative similarity therebetween.

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Patent Owner(s)

  • XEROX CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huttenlocher, Daniel P Ithaca, NY 27 1611
Jaquith, Eric W Amherst, NH 5 923

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