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

B. Wang, C. C. Sun

研究成果: 雜誌貢獻期刊論文同行評審

18 引文 斯高帕斯(Scopus)

摘要

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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頁(從 - 到)1502-1506
頁數5
期刊Optical Engineering
40
發行號8
DOIs
出版狀態已出版 - 8月 2001

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