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

We present for the first time an optical encrypting–decrypting protocol for recovering messages without speckle noise. This is a digital holographic technique using a 2f scheme to process QR codes entries. In the procedure, letters used to compose eventual messages are individually converted into a...

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Guardado en:
Detalles Bibliográficos
Autores principales: Trejos, Sorayda, Barrera, John Fredy, Torroba, Roberto Daniel
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Física
Ingeniería
QR codes
optical packaging
image processing
digital holography
multiplexing
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/147654
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata

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