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:
Sep. 09, 2014
Filed:
Jul. 18, 2012
Julien Christian Barbot, Princeton, NJ (US);
Atilla Peter Kiraly, Plainsboro, NJ (US);
Julien Christian Barbot, Princeton, NJ (US);
Atilla Peter Kiraly, Plainsboro, NJ (US);
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A method including receiving a first two-dimensional (2D) image; and applying a filter to the 2D image to produce a filtered image that identifies a circular object of interest, wherein the filter is based on the integral sum of the function S, where the filter output at point x is which is obtained from the 2D image, the function S is represented by S(m,θ,r,y)=S(m)S(θ,r), where m is a magnitude of a gradient at location y, r is a radial distance from y to x, and θ is an angle between the gradient at location y and the radial distance from y to x, Cdepends on a gray-level value of the object, Cand σ depend on a size of the object.