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:
May. 15, 2012
Filed:
Dec. 09, 2009
Gang Wu, Beijing, CN;
Weijie Liu, Kanagawa, JP;
Xiaohui Xie, Beijing, CN;
Qiang Wei, Beijing, CN;
Panasonic Corporation, Osaka, JP;
Abstract
An image processing device capable of high-speed detection of a specific shape in an image. In the image processing device, a candidate position calculation section () obtains a first candidate position of the center point of a first circle in contact at three points with three sides contained in the shape of an object to be detected. An angle calculation section () obtains an angle formed by a normal line drawn from each of the three sides to the first candidate position and a standard line oriented in a specific direction and passing a point at which the normal line and each of the three sides cross. A relative relationship calculation section () obtains a relationship of the angle relative to the first candidate position. A recognition section () recognizes the shape contained in the given image based on the relative relationship of the angle and a relative relationship of a shape stored in advance.