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...
Guardado en:
Autores principales: | Trejos, Sorayda, Barrera, John Fredy, Torroba, Roberto Daniel |
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Formato: | Articulo |
Lenguaje: | Inglés |
Publicado: |
2015
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Materias: | |
Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/147654 |
Aporte de: |
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