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Opt Express. 2010 Dec 20;18(26):27095-104. doi: 10.1364/OE.18.027095.

Space-based optical image encryption.

Author information

1
Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore. elechenw@nus.edu.sg

Abstract

In this paper, we propose a new method based on a three-dimensional (3D) space-based strategy for the optical image encryption. The two-dimensional (2D) processing of a plaintext in the conventional optical encryption methods is extended to a 3D space-based processing. Each pixel of the plaintext is considered as one particle in the proposed space-based optical image encryption, and the diffraction of all particles forms an object wave in the phase-shifting digital holography. The effectiveness and advantages of the proposed method are demonstrated by numerical results. The proposed method can provide a new optical encryption strategy instead of the conventional 2D processing, and may open up a new research perspective for the optical image encryption.

PMID:
21196985
DOI:
10.1364/OE.18.027095
[Indexed for MEDLINE]

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