The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 16, 1999
Filed:
Mar. 11, 1996
Applicant:
Inventors:
Kazuaki Nakamura, Toyohashi, JP;
Shinji Yamamoto, Toyohashi, JP;
Makoto Niioka, Sagamihara, JP;
Tetsuya Itoh, Okazaki, JP;
Shinji Okamoto, Yao, JP;
Assignee:
Minolta Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06K / ;
U.S. Cl.
CPC ...
706 20 ; 382155 ; 382156 ; 382159 ; 382160 ; 382170 ; 382181 ;
Abstract
A device for discriminating an attribute of an image in a block area contained in a document image includes a device for performing a Fourier transformation based on image data in the block area and for determining a spatial frequency spectrum relating to the image in the block area; and a neural network for outputting a discrimination result as to whether or not the attribute of the image in the block area is a halftone dot image based on the spatial frequency spectrum output from the Fourier transform device.