Enhancement of signal-to-noise ratio of a double random phase encoding encryption system

B. Wang; C. C. Sun

doi:10.1117/1.1386643

Enhancement of signal-to-noise ratio of a double random phase encoding encryption system

B. Wang, C. C. Sun

Department of Optics and Photonics

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The tolerance to data loss of a double random phase encoding encryption system is studied, and the signal-to-noise ratio (SNR) of the decrypted image is investigated when part of the encrypted image is lost. In electronic implementation, the SNR will be enhanced by reducing the ratio of the sampling number of the image to the total sampling number. In optical implementation, the SNR can be increased by using a phase mask with higher spatial frequency. Both the theory and computer simulations are demonstrated.

Original language	English
Pages (from-to)	1502-1506
Number of pages	5
Journal	Optical Engineering
Volume	40
Issue number	8
DOIs	https://doi.org/10.1117/1.1386643
State	Published - Aug 2001

Keywords

Decryption phase mask
Double random phase encoding
Encryption
Signal-to-noise ratio

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10.1117/1.1386643

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abstract = "The tolerance to data loss of a double random phase encoding encryption system is studied, and the signal-to-noise ratio (SNR) of the decrypted image is investigated when part of the encrypted image is lost. In electronic implementation, the SNR will be enhanced by reducing the ratio of the sampling number of the image to the total sampling number. In optical implementation, the SNR can be increased by using a phase mask with higher spatial frequency. Both the theory and computer simulations are demonstrated.",

keywords = "Decryption phase mask, Double random phase encoding, Encryption, Signal-to-noise ratio",

author = "B. Wang and Sun, {C. C.}",

note = "Funding Information: The authors would like to express their appreciation to Li-Hsin Lin for her help in writing this paper. This work is supported by the National Science Council of the Republic of China.",

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N2 - The tolerance to data loss of a double random phase encoding encryption system is studied, and the signal-to-noise ratio (SNR) of the decrypted image is investigated when part of the encrypted image is lost. In electronic implementation, the SNR will be enhanced by reducing the ratio of the sampling number of the image to the total sampling number. In optical implementation, the SNR can be increased by using a phase mask with higher spatial frequency. Both the theory and computer simulations are demonstrated.

AB - The tolerance to data loss of a double random phase encoding encryption system is studied, and the signal-to-noise ratio (SNR) of the decrypted image is investigated when part of the encrypted image is lost. In electronic implementation, the SNR will be enhanced by reducing the ratio of the sampling number of the image to the total sampling number. In optical implementation, the SNR can be increased by using a phase mask with higher spatial frequency. Both the theory and computer simulations are demonstrated.

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KW - Double random phase encoding

KW - Encryption

KW - Signal-to-noise ratio

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Enhancement of signal-to-noise ratio of a double random phase encoding encryption system

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Keywords

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