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:
Mar. 26, 2013
Filed:
Jan. 27, 2010
Gil Abramovich, Niskayuna, NY (US);
Kevin George Harding, Niskayuna, NY (US);
Qingying HU, Bellevue, WA (US);
Swaminathan Manickam, Bellingham, MA (US);
Meena Ganesh, Clifton Park, NY (US);
Christopher Allen Nafis, Rexford, NY (US);
Gil Abramovich, Niskayuna, NY (US);
Kevin George Harding, Niskayuna, NY (US);
Qingying Hu, Bellevue, WA (US);
Swaminathan Manickam, Bellingham, MA (US);
Meena Ganesh, Clifton Park, NY (US);
Christopher Allen Nafis, Rexford, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
This invention provides a method for contactless fingerprint detection and verification comprising illuminating a fingerprint and directing a reflected light through an imaging system using liquid crystal panels and birefringent elements to polarize the light. A plurality of polarized images are captured and used to calculate the depth of structural features on the fingertip. A means to generate a two-dimensional rolled equivalent image of the fingerprint is also provided which may then be used for verification and authentication. The invention also provides an imaging system for carrying out the method.