Journal
OPTICS COMMUNICATIONS
Volume 355, Issue -, Pages 419-426Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2015.07.014
Keywords
Micro-lens array; Light field imaging; Image encryption
Categories
Funding
- National Natural Science Foundation of China [61205015, 11104184]
- Research Fund of Zhejiang Province Department of Education [Y201430970]
- Research Fund for the Doctoral Program of Higher Education of China [20123120130001]
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This paper proposes a 3-D image encryption scheme based on micro-lens array. The 3-D image can be reconstructed by applying the digital refocusing algorithm to the picked-up light field. To improve the security of the cryptosystem, the Arnold transform and the Gravity Model based image encryption method are employed. Experiment results demonstrate the high security in key space of the proposed encryption scheme. The results also indicate that the employment of light field imaging significant strengthens the robustness of the cipher image against some conventional image processing attacks. (C) 2015 Elsevier B.V. All rights reserved.
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