Journal
JOURNAL OF OPTICS
Volume 14, Issue 7, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2040-8978/14/7/075402
Keywords
optical image encryption; phase retrieval; optical decryption; three-dimensional processing; particle-like distribution
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Funding
- Singapore Ministry of Education (MOE) [MOE2009-T2-2-086]
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We propose a new phase retrieval algorithm for optical image encryption in three-dimensional (3D) space. The two-dimensional (2D) plaintext is considered as a series of particles distributed in 3D space, and an iterative phase retrieval algorithm is developed to encrypt the series of particles into phase-only masks. The feasibility and effectiveness of the proposed method are demonstrated by a numerical experiment, and the advantages and security of the proposed optical cryptosystems are also analyzed and discussed.
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