Image analysis – Pattern recognition – Feature extraction
Reexamination Certificate
2008-09-04
2011-11-01
Tabatabai, Abolfazl (Department: 2624)
Image analysis
Pattern recognition
Feature extraction
C707S758000
Reexamination Certificate
active
08050501
ABSTRACT:
In an image matching apparatus of the present invention, when a document type discrimination section that discriminates a document type determines that a target document is an N-up document on which plural document images are laid out, a resolution conversion section that converts a resolution of image data into a default resolution before features are extracted from the image data converts a resolution of image data of the target document into not the default resolution but a resolution which varies depending on the number of document images laid out on the target document and a document size of the target document. This makes it possible to determine a similarity to a reference document with high accuracy even in a case where each document image included in the target document to be matched is reduced in size from its original document image, i.e., in a case of an N-up document.
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US Office Action issued on Mar. 29, 2011 in U.S. Appl. No. 12/206,588.
Birch & Stewart Kolasch & Birch, LLP
Sharp Kabushiki Kaisha
Tabatabai Abolfazl
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