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.:

US 8363945 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 29, 2013

Filed:

Mar. 18, 2009
Applicant:

Xuebin HU, Ashigarakami-gun, JP;

Inventor:

Xuebin Hu, Ashigarakami-gun, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention performs a process of integrating plural pixel evaluation values corresponding to plural evaluation pixels on a circular arc overlapping a circle using a predetermined pixel in interest as its center and calculating an integrated evaluation value to evaluate whether the circular arc is a circular arc corresponding to a similar semicircular shape, for each of plural circular arcs that overlap the circle in overlapping phases which are different from each other, compares plural integrated evaluation values corresponding to the plural circular arcs, and extracts the circular arc with which the integrated evaluation value indicating the most approximation to the similar semicircular shape is associated, from the plural circular arcs.


Find Patent Forward Citations

Hu, Xuebin. (2013). Similar semicircle detecting apparatus and computer-readable storage medium storing similar semicircle detecting program (U.S. Patent No. 8363945). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8363945

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