Method and system for document image feature extraction

United States of America Patent

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Dec 21, 1999
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Sep 24, 1997
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Sep 24, 1997

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Abstract

A set of image feature extraction techniques to locate and group documents based upon appearance in a database management system. The system automatically determines visual characteristics of document images and collects documents together according to the relative similarity of their document images. The system is operable on both binary and grayscale images.

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Patent Owner(s)

Patent Owner	Address
RICOH COMPANY LIMITED	3-6 NAKAMAGOME 1-CHOME OHTA-KU TOKYO 143-8555
RICOH CORPORATION	FIVE DEDRICK PLACE WEST CALDWELL NJ 07006

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G06F:ELECTRIC DIGITAL DATA PROCESSING

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Cullen, John F	Redwood City, CA	17	1513
Keith, Alex	Palo Alto, CA	1	49
Zandi, Ahmad	Cupertino, CA	36	1884

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Method and system for document image feature extraction

Number of patents in Portfolio can not be more than 2000

United States of America Patent

08936339

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PATENT NO	6006226
SERIAL NO	08936339
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08936339

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