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.

Date of Patent:
Aug. 06, 2019

Filed:

Nov. 27, 2017
Applicant:

Kyocera Document Solutions Inc., Osaka, JP;

Inventor:

Toshiaki Mutsuo, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/00 (2006.01); H04N 1/04 (2006.01);
U.S. Cl.
CPC ...
H04N 1/00742 (2013.01); H04N 1/04 (2013.01); H04N 2201/0081 (2013.01);
Abstract

In an input image generated as a binary image from a scanned document image, a projection image generating unit (a) tries at each primary-scanning-directional target pixel position to detect a secondary-scanning-directional run along a secondary scanning direction, projects the detected secondary-scanning-directional run at the primary-scanning-directional target pixel position and thereby generates a one-dimensional primary-scanning-directional-projection image, and (b) tries at each secondary-scanning-directional target pixel position to detect a primary-scanning-directional run along the primary scanning direction, projects the detected primary-scanning-directional run at the secondary-scanning-directional target pixel position and thereby generates a one-dimensional secondary-scanning-directional-projection image. A blank sheet determining unit determines that the document is a blank document at least on the basis of the number of runs in the primary-scanning-directional-projection image and the number of runs in the secondary-scanning-directional-projection image.


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