Publications by authors named "Roberto Torroba"

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Improved phase hologram generation of multiple 3D objects.
Alejandro Velez-Zea, John Fredy Barrera-Ramírez, Roberto Torroba

Appl Opt· April 2022

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Alternative constraints for improved multiplane hologram generation.
Alejandro Velez-Zea, John Fredy Barrera-Ramirez, Roberto Torroba

Appl Opt· February 2022

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Mixed constraint in global and sequential hologram generation.
Alejandro Velez-Zea, Roberto Torroba

Appl Opt· March 2021

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Noniterative multiplane holographic projection.
Alejandro Velez-Zea, Roberto Torroba

Appl Opt· May 2020

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Compression of 3D dynamic holographic scenes in the Fresnel domain.
Sorayda Trejos, Melisa Gómez, Alejandro Velez-Zea, John Fredy Barrera-Ramírez, Roberto Torroba

Appl Opt· May 2020

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Optimized random phase tiles for non-iterative hologram generation.
Alejandro Velez-Zea, Roberto Torroba

Appl Opt· November 2019

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Synthetic amplitude for improved reconstruction of noniterative phase holograms.
Alejandro Velez Zea, Roberto Torroba

Appl Opt· August 2019

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O
Optimized random phase encryption.
Alejandro Velez Zea, John Fredy Barrera Ramirez, Roberto Torroba

Opt Lett· August 2018

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O
Optimized random phase only holograms.
Alejandro Velez Zea, John Fredy Barrera Ramirez, Roberto Torroba

Opt Lett· February 2018

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E
Experimental optical encryption of grayscale information.
Alejandro Velez Zea, John Fredy Barrera, Roberto Torroba

Appl Opt· July 2017

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T
Three-dimensional joint transform correlator cryptosystem.
Alejandro Velez Zea, John Fredy Barrera Ramirez, Roberto Torroba

Opt Lett· February 2016

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E
Experimental scrambling and noise reduction applied to the optical encryption of QR codes.
John Fredy Barrera, Alejandro Vélez, Roberto Torroba

Opt Express· August 2014

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E
Experimental QR code optical encryption: noise-free data recovering.
John Fredy Barrera, Alejandro Mira-Agudelo, Roberto Torroba

Opt Lett· May 2014

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Optical encryption and QR codes: secure and noise-free information retrieval.
John Fredy Barrera, Alejandro Mira, Roberto Torroba

Opt Express· March 2013

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Multiplexing of encrypted data using fractal masks.
John F Barrera, Myrian Tebaldi, Dafne Amaya, Walter D Furlan, Juan A Monsoriu, Roberto Torroba

Opt Lett· July 2012

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Master key generation to avoid the use of an external reference wave in an experimental JTC encrypting architecture.
Edgar Rueda, Carlos Ríos, John Fredy Barrera, Roberto Torroba

Appl Opt· April 2012

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E
Experimental multiplexing of encrypted movies using a JTC architecture.
John Fredy Barrera, Myrian Tebaldi, Carlos Ríos, Edgar Rueda, Néstor Bolognini, Roberto Torroba

Opt Express· February 2012

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O
Optical smart packaging to reduce transmitted information.
Luisa Cabezas, Myrian Tebaldi, John Fredy Barrera, Néstor Bolognini, Roberto Torroba

Opt Express· January 2012

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Pure optical dynamical color encryption.
Fabian Mosso, Myrian Tebaldi, John Fredy Barrera, Néstor Bolognini, Roberto Torroba

Opt Express· July 2011

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A
All-optical encrypted movie.
Fabian Mosso, John Fredy Barrera, Myrian Tebaldi, Néstor Bolognini, Roberto Torroba

Opt Express· March 2011

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Known-plaintext attack on a joint transform correlator encrypting system.
John Fredy Barrera, Carlos Vargas, Myrian Tebaldi, Roberto Torroba, Nestor Bolognini

Opt Lett· November 2010

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Noise-free recovery of optodigital encrypted and multiplexed images.
Rodrigo Henao, Edgar Rueda, John F Barrera, Roberto Torroba

Opt Lett· February 2010

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E
Efficient encrypting procedure using amplitude and phase as independent channels to display decoy objects.
John Fredy Barrera, Roberto Torroba

Appl Opt· June 2009

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Wavelength multiplexing encryption using joint transform correlator architecture.
Dafne Amaya, Myrian Tebaldi, Roberto Torroba, Néstor Bolognini

Appl Opt· April 2009

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Optical-data storage-readout technique based on fractal encrypting masks.
Myrian Tebaldi, Walter D Furlan, Roberto Torroba, Néstor Bolognini

Opt Lett· February 2009

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