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Joint transform correlator-based encryption system using the Fresnel transform and nonlinear filtering

Autor
Vilardy, J.; Millan, M.; Pérez-Cabré, E.
Tipus d'activitat
Presentació treball a congrés
Nom de l'edició
VIII Iberoamerican Conference on Optics, XI Latinamerican meeting on Optics, Lasers and Applications.
Any de l'edició
2013
Data de presentació
2013-07
Llibre d'actes
RIAO/OPTILAS'2013: Abstracts
DOI
https://doi.org/10.1117/12.2020912 Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/21861 Obrir en finestra nova
URL
http://www.riaooptilas2013.org/ Obrir en finestra nova
Resum
A new optical security system for image encryption based on a nonlinear joint transform correlator (JTC) and Fresnel transform is proposed. A lensless optical encryption system, which is a simplifried version of previous JTCbased encryption systems, produces a complex distribution in the Fresnel domain, whose intensity is captured by a power-law sensor and nonlinearly modified to yield the real-valued encrypted image. The nonlinearity plays an essential role in the decryption system which, in tu...
Citació
Vilardy, J.; Millan, M.; Perez, E. Joint transform correlator-based encryption system using the Fresnel transform and nonlinear filtering. A: RIAO/OPTILAS Iberoamerican Conference on Optics, Latinamerican meeting on Optics Lasers and Applications. "RIAO/OPTILAS'2013: Abstracts". Oporto: 2013.
Paraules clau
Decryption, Fractional Fourier transform, Fresnel transform, Image encryption, Joint transform correlator, Nonlinear filter, Random phase mask
Grup de recerca
GOAPI - Grup d'Òptica Aplicada i Processament d'Imatge

Participants