Title

Optical recognition of phase-encrypted biometrics

Keywords

Diffractive optics; Optical processing; Phase encryption; Phase filters; Recognition techniques; Security systems; Signal processing

Abstract

An optical security system using phase encryption of biometric identification data is demonstrated. For this effort, fingerprints are used as the biometric signature. Two types of phase masks are fabricated: photopolymer film and polyimide film. The masks containing the phase-encrypted fingerprints are tested using a joint transform optical correlator. The results of the tests demonstrate that the encryption methods are successful, as the target fingerprint is recognized and the test print is rejected. © 1998 Society of Photo-Optical Instrumentation Engineers.

Publication Date

1-1-1998

Publication Title

Optical Engineering

Volume

37

Issue

1

Number of Pages

18-26

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/1.601850

Socpus ID

0038611465 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0038611465

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