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Experimental double random phase encoding technique under a joint transforms correlator architecture
(Anita Publications, 2013-06)
We present a review for updating the last contributions in the field of optical encoding techniques using a joint transform correlator architecture. We focus on the experimental aspects with special reference to both ...
Experimental double random phase encoding technique under a joint transforms correlator architecture
(Anita PublicationsGrupo de Óptica y FotónicaDelhi, India, 2023)
Asymmetric multiple-image encryption system based on a chirp z-transform
(Optical Society of America, 2019-07)
An asymmetric multi-image encryption system based on the chirp z-transform (CZT) is demonstrated. The setup is a hybrid architecture that combines a double-random-phase encryption scheme in 4f configuration and a multiplexing ...
Secure real-time generation and display of color holographic movies
(Elsevier, 2019-11)
In this paper we demonstrate a secure, real time color hologram generation and projection scheme. Holographic display techniques have the potential to enable the control of both the phase and amplitude of a light field. ...
Multi-user multiplexed scheme for decoding modulated-encoded sequential information
(Society of Photo-optical Instrumentation Engineers, 2017)
Experimental optical encryption of grayscale information
(OSA - The Optical Society, 2017-07)
In this paper, we present a new protocol for achieving lower noise and consequently a higher dynamic range in optical encryption. This protocol allows for the securing and optimal recovery of any arbitrary grayscale images ...
Encriptacion optica empleando llaves Weierstrass-Mandelbrot
(Universidad Politécnica de Valencia, 2013-05)
En este trabajo se presenta la generación de llaves de encriptación aprovechando el carácter local oscilatorio y variable de las sumas parciales de la función fractal Weierstrass-Mandelbrot. Bajo este esquema, la llave de ...
Encriptación óptica de información con recuperación libre de ruidoOptical encryption with noise-free recovery
(Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 2015-11)
Los sistemas de protección de información basados en procesadores ópticos y que emplean una técnica de codificación de doble máscara aleatoria de fase permiten el manejo seguro de los datos, pero su recuperación no está ...