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:
Aug. 19, 2014
Filed:
May. 17, 2012
Puneeth Bilagunda Chandrashekar, Bangalore, IN;
Sharmila Saha, Bangalore, IN;
Puneeth Bilagunda Chandrashekar, Bangalore, IN;
Sharmila Saha, Bangalore, IN;
Mindtree Limited, Bangalore, Karnataka, IN;
Abstract
A computer implemented method and system determines a center point of a circular object in an image. A circular object identification system identifies prospective center points of the circular object for each of multiple pixel points at a predetermined distance along a gradient direction determined for each of the pixel points, constructs an axis between the corresponding prospective center points and a corresponding pixel point, and locates prospective circumference points at predetermined angles from the constructed axis. The circular object identification system compares the gradient direction of each of the prospective circumference points with a direction defined by each of the prospective circumference points and a corresponding prospective center point to find a match, determines convergence of the gradient direction of each of the prospective circumference points to a corresponding prospective center point, and determines the center point based on resultant decision votes of each of the prospective center points.