Share Email Print
cover

Proceedings Paper

Optical encryption method using zone plates
Author(s): John Freddy Barrera; Rodrigo H. Henao; Roberto Daniel Torroba
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We present the implementation of an optical encryption method using zone plates. The optical security system is based on using a computer generated phase mask. In the encryption process the phase mask is placed in the Fourier plane of the object to be encrypted. The original-data recovering is performed by digital reconstruction using the conjugate of the encryption mask. Theoretical background and computer simulations are presented to demonstrate the method.

Paper Details

Date Published: 21 October 2004
PDF: 4 pages
Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); doi: 10.1117/12.591619
Show Author Affiliations
John Freddy Barrera, Univ. de Antioquia (Colombia)
Rodrigo H. Henao, Univ. de Antioquia (Colombia)
Roberto Daniel Torroba, CIOp (Argentina)
Univ. Nacional de La Plata (Argentina)


Published in SPIE Proceedings Vol. 5622:
5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications
Aristides Marcano O.; Jose Luis Paz, Editor(s)

© SPIE. Terms of Use
Back to Top