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Nonlinear optical security system based on a joint transform correlator in the Fresnel domain

Autor
Vilardy, J.; Millan, M.; Pérez-Cabré, E.
Tipus d'activitat
Article en revista
Revista
Applied optics
Data de publicació
2014-03-10
Volum
53
Número
8
Pàgina inicial
1674
Pàgina final
1682
DOI
https://doi.org/10.1364/AO.53.001674 Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/22623 Obrir en finestra nova
URL
http://www.opticsinfobase.org/ao/abstract.cfm?uri=ao-53-8-1674 Obrir en finestra nova
Resum
A new optical security system for image encryption based on a nonlinear joint transform correlator (JTC) in the Fresnel domain (FrD) is proposed. The proposal of the encryption process is a lensless optical system that produces a real encrypted image and is a simplified version of some previous JTC-based encryption systems. We use a random complex mask as the key in the nonlinear system for the purpose of increasing the security of the encrypted image. In order to retrieve the primary image in t...
Citació
Vilardy, J.; Millan, M.; Perez, E. Nonlinear optical security system based on a joint transform correlator in the Fresnel domain. "Applied optics", 10 Març 2014, vol. 53, núm. 8, p. 1674-1682.
Paraules clau
ALGORITHM, ARCHITECTURE, CHOSEN-PLAINTEXT ATTACK, DIFFRACTION, DIGITAL HOLOGRAPHY, FRACTIONAL FOURIER, KEYS, MULTIPLE-IMAGE ENCRYPTION, PHASE-SHIFTING INTERFEROMETRY, PLANE
Grup de recerca
GOAPI - Grup d'Òptica Aplicada i Processament d'Imatge

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