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. 27, 2016
Filed:
Sep. 09, 2014
Marios Savvides, Wexford, PA (US);
Khalid Harun, Pittsburgh, PA (US);
Vijayakumar Bhagavatula, Pittsburgh, PA (US);
Sungwon Park, Seoul, KR;
Yung-hui LI, Tapei, TW;
Marios Savvides, Wexford, PA (US);
Khalid Harun, Pittsburgh, PA (US);
Vijayakumar Bhagavatula, Pittsburgh, PA (US);
Sungwon Park, Seoul, KR;
Yung-Hui Li, Tapei, TW;
Biometricore, Inc., Pittsburgh, PA (US);
Abstract
A method and system for uniquely identifying a subject based on an iris image. After obtaining the iris image, the method produces a filtered iris image by applying filters to the iris image to enhance discriminative features of the iris image. The method analyzes an intensity value for pixels in the filtered iris image to produce an iris code that uniquely identifies the subject. The method also creates a segmented iris image by detecting an inner and outer boundary for an iris region in the iris image, and remapping pixels in the iris region, represented in a Cartesian coordinate system, to pixels in the segmented iris image, represented in a log-polar coordinate system, by employing a logarithm representation process. The method also creates a one-dimensional iris string from the iris image by unfolding the iris region by employing a spiral sampling method to obtain sample pixels in the iris region, wherein the sample pixels are the one-dimensional iris string.