John Fredy Barrera: search on Z-Library

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1

Secure selective recovery protocol for multiple optically encrypted data

Jaramillo-Osorio, Alexis, Velez-Zea, Alejandro, Mira-Agudelo, Alejandro, Barrera-RamÃrez, John Fredy, Torroba, Roberto

Journal:

Optics and Lasers in Engineering

Year:

2021

File:

PDF, 2.13 MB

2021

2

Optimized random phase only holograms

Zea, Alejandro Velez, Barrera Ramirez, John Fredy, Torroba, Roberto

Journal:

Year:

2018

Language:

english

File:

PDF, 2.17 MB

english, 2018

3

Discussion on Fresnel's mirrors and Young's double-slit interferometers

John Fredy Barrera, Francisco F. Medina, Jorge Garcia-Sucerquia

Journal:

Optik - International Journal for Light and Electron Optics

Year:

2007

Language:

english

File:

PDF, 316 KB

english, 2007

4

Roadmap on optical security

Javidi, Bahram, Carnicer, Artur, Yamaguchi, Masahiro, Nomura, Takanori, Pérez-Cabré, Elisabet, Millán, María S, Nishchal, Naveen K, Torroba, Roberto, Barrera, John Fredy, He, Wenqi, Peng, Xiang, Stern

Journal:

Journal of Optics (IOPscience)

Year:

2016

Language:

english

File:

PDF, 10.07 MB

english, 2016

5

Compression of multiple 3D color scenes with experimental recording and reconstruction

Trejos, Sorayda, Ramirez, John Fredy Barrera, Zea, Alejandro Velez, Tebaldi, Myrian, Torroba, Roberto

Journal:

Optics and Lasers in Engineering

Year:

2018

Language:

english

File:

PDF, 1.85 MB

english, 2018

6

Talbot effect for periodical objects limited by finite apertures: a new interpretation

John Fredy Barrera, Rodrigo Henao, Zbigniew Jaroszewicz, Andrzej Kolodziejczyk

Journal:

Optik - International Journal for Light and Electron Optics

Year:

2005

Language:

english

File:

PDF, 336 KB

english, 2005

7

Experimental opto-digital synthesis of encrypted sub-samples of an image to improve its decoded quality

John Fredy Barrera, Edgar Rueda, Carlos Rios, Myrian Tebaldi, Néstor Bolognini, Roberto Torroba

Journal:

Optics Communications

Year:

2011

Language:

english

File:

PDF, 1.53 MB

english, 2011

8

Optimized random phase encryption

Velez Zea, Alejandro, Barrera Ramirez, John Fredy, Torroba, Roberto

Journal:

Year:

2018

Language:

english

File:

PDF, 1.96 MB

english, 2018

9

Multiplexing encryption technique by combining random amplitude and phase masks

John Fredy Barrera, Myrian Tebaldi, Roberto Torroba, Néstor Bolognini

Journal:

Optik - International Journal for Light and Electron Optics

Year:

2009

Language:

english

File:

PDF, 549 KB

english, 2009

10

Digital encryption with undercover multiplexing by scaling the encoding mask

John Fredy Barrera, Rodrigo Henao, Myrian Tebaldi, Roberto Torroba, Néstor Bolognini

Journal:

Optik - International Journal for Light and Electron Optics

Year:

2009

Language:

english

File:

PDF, 246 KB

english, 2009

11

Simultaneous use of amplitude and phase to improve the validation process in a joint transform correlator

John Fredy Barrera, Juan Serna, Roberto Torroba

Journal:

Optik - International Journal for Light and Electron Optics

Year:

2010

Language:

english

File:

PDF, 609 KB

english, 2010

12

Code retrieval via undercover multiplexing

John Fredy Barrera, Rodrigo Henao, Myrian Tebaldi, Roberto Torroba, Néstor Bolognini

Journal:

Optik - International Journal for Light and Electron Optics

Year:

2008

Language:

english

File:

PDF, 270 KB

english, 2008

13

Cross-talk free selective reconstruction of individual objects from multiplexed optical field data

Zea, Alejandro Velez, Barrera, John Fredy, Torroba, Roberto

Journal:

Optics and Lasers in Engineering

Year:

2018

Language:

english

File:

PDF, 2.41 MB

english, 2018

14

Optical encryption and QR codes: Secure and noise-free information retrieval

Barrera, John Fredy, Mira, Alejandro, Torroba, Roberto

Journal:

Year:

2013

Language:

english

File:

PDF, 1.51 MB

english, 2013

15

Secure real-time generation and display of color holographic movies

Zea, Alejandro Velez, Ramírez, John Fredy Barrera, Torroba, Roberto

Journal:

Optics and Lasers in Engineering

Year:

2019

Language:

english

File:

PDF, 1.53 MB

english, 2019

16

All-optical encrypted movie

Fabian Mosso, John Fredy Barrera, Myrian Tebaldi, Néstor Bolognini, Roberto Torroba

Journal:

Year:

2011

Language:

english

File:

PDF, 1.01 MB

english, 2011

17

Chosen-plaintext attack on a joint transform correlator encrypting system

John Fredy Barrera, Carlos Vargas, Myrian Tebaldi, Roberto Torroba

Journal:

Optics Communications

Year:

2010

Language:

english

File:

PDF, 504 KB

english, 2010

18

Experimental analysis of a joint free space cryptosystem

Ramírez, John Fredy Barrera, Osorio, Alexis Jaramillo, Zea, Alejandro Vélez, Torroba, Roberto

Journal:

Optics and Lasers in Engineering

Year:

2016

Language:

english

File:

PDF, 1.16 MB

english, 2016

19

Efficient encrypting procedure using amplitude and phase as independent channels to display decoy objects

Fredy Barrera, John, Torroba, Roberto

Journal:

Year:

2009

Language:

english

File:

PDF, 1.06 MB

english, 2009

20

Experimental multiplexing of encrypted movies using a JTC architecture

Barrera, John Fredy, Tebaldi, Myrian, Ríos, Carlos, Rueda, Edgar, Bolognini, Néstor, Torroba, Roberto

Journal:

Year:

2012

Language:

english

File:

PDF, 963 KB

english, 2012

21

Multiple image encryption using an aperture-modulated optical system

John Fredy Barrera, Rodrigo Henao, Myrian Tebaldi, Roberto Torroba, Néstor Bolognini

Journal:

Optics Communications

Year:

2006

Language:

english

File:

PDF, 218 KB

english, 2006

22

Improved decryption quality with a random reference beam cryptosystem

Jaramillo Osorio, Alexis, Ramírez, John Fredy Barrera, Montoya, Santiago, Mira-Agudelo, Alejandro, Zea, Alejandro Vélez, Torroba, Roberto

Journal:

Optics and Lasers in Engineering

Year:

2019

Language:

english

File:

PDF, 2.32 MB

english, 2019

23

Optical encryption method using toroidal zone plates

John Fredy Barrera, Rodrigo Henao, Roberto Torroba

Journal:

Optics Communications

Year:

2005

Language:

english

File:

PDF, 410 KB

english, 2005

24

High performance compact optical cryptosystem without reference arm

jaramillo osorio, John alexis, Barrera, John Fredy, Mira-Agudelo, Alejandro, Velez Zea, Alejandro, Torroba, Roberto

Journal:

Journal of Optics (IOPscience)

Year:

2020

File:

PDF, 1.09 MB

2020

25

Multiple-encoding retrieval for optical security

John Fredy Barrera, Rodrigo Henao, Myrian Tebaldi, Roberto Torroba, Néstor Bolognini

Journal:

Optics Communications

Year:

2007

Language:

english

File:

PDF, 784 KB

english, 2007

26

Three-dimensional joint transform correlator cryptosystem

Zea, Alejandro Velez, Barrera Ramirez, John Fredy, Torroba, Roberto

Journal:

Year:

2016

Language:

english

File:

PDF, 1.66 MB

english, 2016

27

Experimental opto-digital processing of multiple data via modulation, packaging and encryption

Trejos, Sorayda, Barrera, John Fredy, Tebaldi, Myrian, Torroba, Roberto

Journal:

Journal of Optics (IOPscience)

Year:

2014

Language:

english

File:

PDF, 658 KB

english, 2014

28

Multiplexing encrypted data by using polarized light

John Fredy Barrera, Rodrigo Henao, Myrian Tebaldi, Roberto Torroba, Néstor Bolognini

Journal:

Optics Communications

Year:

2006

Language:

english

File:

PDF, 337 KB

english, 2006

29

Experimental scrambling and noise reduction applied to the optical encryption of QR codes

Barrera, John Fredy, Vélez, Alejandro, Torroba, Roberto

Journal:

Year:

2014

Language:

english

File:

PDF, 1.64 MB

english, 2014

30

Master key generation to avoid the use of an external reference wave in an experimental JTC encrypting architecture

Rueda, Edgar, Ríos, Carlos, Barrera, John Fredy, Torroba, Roberto

Journal:

Year:

2012

Language:

english

File:

PDF, 425 KB

english, 2012

31

Optical approach for the efficient data volume handling in experimentally encrypted data

Trejos, Sorayda, Barrera, John Fredy, Velez, Alejandro, Tebaldi, Myrian, Torroba, Roberto

Journal:

Journal of Optics (IOPscience)

Year:

2016

Language:

english

File:

PDF, 1.29 MB

english, 2016

32

Límites de velocidad y distancia en la transmisión de información por un enlace óptico de bajo costo con recuperación libre de ruido

Montoya-Castro, Santiago Abelardo, Herrera-Duran, Juan Mauricio, Barrera-Ramírez, John Fredy

Journal:

Year:

2017

File:

PDF, 614 KB

2017

33

One step multiplexing optical encryption

John Fredy Barrera, Roberto Torroba

Journal:

Optics Communications

Year:

2010

Language:

english

File:

PDF, 439 KB

english, 2010

34

SPIE Proceedings [SPIE Congress on Optics and Optoelectronics - Warsaw, Poland (Sunday 28 August 2005)] Optical Security Systems - Optical encryption by means of the Talbot array illuminator

Barrera, John Fredy, Henao, Rodrigo, Jaroszewicz, Zbigniew, Kolodziejczyk, Andrzej, Jaroszewicz, Zbigniew, Popov, Sergei Y., Wyrowski, Frank

Year:

2005

Language:

english

File:

PDF, 225 KB

english, 2005

35

Optical field data compression by opto-digital means

Velez, Alejandro, Barrera, John Fredy, Trejos, Sorayda, Tebaldi, Myrian, Torroba, Roberto

Journal:

Journal of Optics (IOPscience)

Year:

2016

Language:

english

File:

PDF, 1.21 MB

english, 2016

36

Pure optical dynamical color encryption

Mosso, Fabian, Tebaldi, Myrian, Barrera, John Fredy, Bolognini, Néstor, Torroba, Roberto

Journal:

Year:

2011

Language:

english

File:

PDF, 1.24 MB

english, 2011

37

Known-plaintext attack on a joint transform correlator encrypting system

Barrera, John Fredy, Vargas, Carlos, Tebaldi, Myrian, Torroba, Roberto, Bolognini, Nestor

Journal:

Year:

2010

Language:

english

File:

PDF, 315 KB

english, 2010

38

Customized data container for improved performance in optical cryptosystems

Zea, Alejandro Vélez, Barrera, John Fredy, Torroba, Roberto

Journal:

Journal of Optics (IOPscience)

Year:

2016

Language:

english

File:

PDF, 1.62 MB

english, 2016

39

Multiplexing encryption–decryption via lateral shifting of a random phase mask

John Fredy Barrera, Rodrigo Henao, Myrian Tebaldi, Roberto Torroba, Néstor Bolognini

Journal:

Optics Communications

Year:

2006

Language:

english

File:

PDF, 271 KB

english, 2006

40

Fractional optical cryptographic protocol for data containers in a noise-free multiuser environment

Jaramillo, Alexis, Barrera, John Fredy, Zea, Alejandro Vélez, Torroba, Roberto

Journal:

Optics and Lasers in Engineering

Year:

2018

Language:

english

File:

PDF, 1.87 MB

english, 2018

41

Experimental multiplexing protocol to encrypt messages of any length

Barrera, John Fredy, Vélez, Alejandro, Torroba, Roberto

Journal:

Journal of Optics (IOPscience)

Year:

2013

Language:

english

File:

PDF, 1.08 MB

english, 2013

42

Pump-probe photothermal self-mixing system for highly sensitive trace detection

Cabrera, Humberto, Ramirez-Miquet, Evelio E., Suarez-Vargas, Jose J., Ramirez, John Fredy Barrera, Korte, Dorota, Niemela, Joseph J.

Journal:

IEEE Sensors Journal

Year:

2018

Language:

english

File:

PDF, 835 KB

english, 2018

43

Experimental holographic movie compression using optical scaling and sampling

Gómez Valencia, Erika Melisa, Trejos, Sorayda, Velez Zea, Alejandro, Barrera, John Fredy, Torroba, Roberto

Journal:

Journal of Optics (IOPscience)

Year:

2020

File:

PDF, 1.32 MB

2020

44

SPIE Proceedings [SPIE International Commission for Optics (ICO 22) - Puebla, Mexico (Monday 15 August 2011)] 22nd Congress of the International Commission for Optics: Light for the Development of the World - Subsampling technique to enhance the decoded output of JTC encrypting system

Barrera, John Fredy, Rueda, Edgar, Ríos, Carlos, Tebaldi, Myrian, Bolognini, Nestor, Torroba, Roberto, Rodríguez-Vera, Ramón, Díaz-Uribe, Rufino

Year:

2011

Language:

english

File:

PDF, 2.00 MB

english, 2011

45

Experimental protocol for packaging and encrypting multiple data

Barrera, John Fredy, Trejos, Sorayda, Tebaldi, Myrian, Torroba, Roberto

Journal:

Journal of Optics (IOPscience)

Year:

2013

Language:

english

File:

PDF, 429 KB

english, 2013

46

Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrieval

Trejos, Sorayda, Barrera, John Fredy, Torroba, Roberto

Journal:

Journal of Optics (IOPscience)

Year:

2015

Language:

english

File:

PDF, 1.51 MB

english, 2015

47

SPIE Proceedings [SPIE International Commission for Optics (ICO 22) - Puebla, Mexico (Monday 15 August 2011)] 22nd Congress of the International Commission for Optics: Light for the Development of the World - Multi-user multiplexed scheme for decoding modulated-encoded sequential information

Mosso, Fabian, Rodríguez-Vera, Ramón, Díaz-Uribe, Rufino, Tebaldi, Myrian, Barrera, John Fredy, Bolognini, Néstor, Torroba, Roberto

Year:

2011

Language:

english

File:

PDF, 3.07 MB

english, 2011

48

Optical smart packaging to reduce transmitted information

Cabezas, Luisa, Tebaldi, Myrian, Barrera, John Fredy, Bolognini, Néstor, Torroba, Roberto

Journal:

Year:

2012

Language:

english

File:

PDF, 2.20 MB

english, 2012

49

Experimental optical encryption of grayscale information

Zea, Alejandro Velez, Barrera, John Fredy, Torroba, Roberto

Journal:

Year:

2017

Language:

english

File:

PDF, 764 KB

english, 2017

50

Optimization of the Light Sword Lens for Presbyopia Correction

Torres-SepÃºlveda, Walter, Mira-Agudelo, Alejandro, Barrera-RamÃrez, John Fredy, Petelczyc, Krzysztof, Kolodziejczyk, Andrzej

Journal:

Translational Vision Science & Technology

Year:

2020

Language:

english

File:

PDF, 1.64 MB

english, 2020

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