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Optical image encryption based on diffractive imaging
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DOI：10.1364/OL.35.003817.png)
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In this Letter, we propose a method for optical image encryption based on diffractive imaging. An optical multiple random phase mask encoding system is applied, and one of the phase-only masks is selected and laterally translated along a preset direction during the encryption process. For image decryption, a phase retrieval algorithm is proposed to extract a high-quality plaintext. The feasibility and effectiveness of the proposed method are demonstrated by numerical results. The proposed method can provide a new strategy instead of conventional interference methods, and it may open up a new research perspective for optical image encryption. (C) 2010 Optical Society of America
Keyword:
RANDOM-PHASE ENCRYPTION
SECURITY
INFORMATION
DOMAIN
期刊
IF:
3.3
论文数:
4.0W
被引数:
7.6W
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