Standard calibration target for contactless fingerprint scanners

US9349033B2 · kind B2 · utility

Assignee

• The United States of America, as Represented by the Secretary of Commerce National Institute of Standards and Technology · US

Inventors

• Shahram Orandi · Potomac, US
• Fred Byers · Knoxville, US
• Stephen Harvey · Santa Monica, US
• Michael D. Garris · Boyds, US
• Stephen S. Wood · Bethesda, US
• John M. Libert · Rockville, US
• Jin Chu Wu · Frederick, US

Key dates

• Filing date: Sep 21, 2012
• Grant date: May 24, 2016
• Expiry date: Aug 26, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N17/002
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A contactless, three-dimensional fingerprint scanner apparatus, method, and system are described. The contactless fingerprint scanner can provide either, or both, topographical contrast of three-dimensional fingerprint features and optical contrast of a three-dimensional fingerprint surface. Data captured from scanning of a target with known geometric features mimicking fingerprint features can be examined as images or surface plots and analyzed for fidelity against the known target feature specifications to evaluate or validate device capture performance as well as interoperability. The target can be used by scanner vendors and designers to validate their devices, as well as to perform type certification.