Share Email Print
cover

Proceedings Paper

Optical pattern recognition for validation and security verification
Author(s): Bahram Javidi; Joseph L. Horner
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We propose an idea for security verification of credit cards, passports, and other ID so that they cannot easily be reproduced. A new scheme of complex phase/amplitude patterns that cannot be seen and cannot be copied by an intensity sensitive detector such as a CCD camera is used. The basic idea is to permanently and irretrievably bond a phase mask to a primary identification amplitude pattern such as a fingerprint, a picture of a face, or a signature. Computer simulation results and tests of the proposed system will be provided to verify that both the phase mask and the primary pattern are separately readable and identifiable in an optical processor or correlator.

Paper Details

Date Published: 1 March 1994
PDF: 7 pages
Proc. SPIE 2237, Optical Pattern Recognition V, (1 March 1994); doi: 10.1117/12.169427
Show Author Affiliations
Bahram Javidi, Univ. of Connecticut (United States)
Joseph L. Horner, Rome Lab. (United States)


Published in SPIE Proceedings Vol. 2237:
Optical Pattern Recognition V
David P. Casasent; Tien-Hsin Chao, Editor(s)

© SPIE. Terms of Use
Back to Top