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:
Apr. 28, 2009
Filed:
Oct. 09, 2006
Michelle Xiao-hong Yan, Princeton, NJ (US);
KE Huang, East Lansing, MI (US);
Hans Schüll, Weisendorf, DE;
Michelle Xiao-Hong Yan, Princeton, NJ (US);
Ke Huang, East Lansing, MI (US);
Hans Schüll, Weisendorf, DE;
Siemens Corporate Research, Inc., Princeton, NJ (US);
Abstract
A method for optic disk detection in retinal images, includes: extracting a vessel tree from a retinal image; locating an optic disk in the retinal image using the vessel tree; enhancing a contrast of the optic disk; removing vessels from the contrast enhanced optic disk; detecting a boundary of the optic disk with vessels removed by generating an edge map; projecting the edge map at a plurality of angles by using a radon transform; and estimating a radius and center of the optic disk using the projections.