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. 01, 2007
Filed:
Oct. 09, 2003
Shiro Fujieda, Otokuni-gun, JP;
Toshihiko Matsumoto, Kyoto, JP;
Yuji Suzuki, Ayabe, JP;
Omron Corporation, Kyoto, JP;
Abstract
An image processing method and an image processing apparatus are disclosed, in which curved linear objects and uneven linear objects as well as rectilinear objects can be detected easily and accurately. Edge pixels Pextracted from a gray-scale image to be processed are sequentially considered to search for an edge pixel having an opposite direction of density gradient to each of the edge pixels Pwithin the range of a predetermined length W along the direction orthogonal to the edges. Once an edge pixel Pmeeting these conditions is extracted, a line segment having a length L is set extending in the direction C parallel to the edge of the edge pixels Pfrom an intermediate point Q between the extracted edge pixel Pand the edge pixel Punder consideration.