期刊
OPTICS COMMUNICATIONS
卷 359, 期 -, 页码 38-43出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2015.09.039
关键词
Multiple-image encryption; Computational ghost imaging; Position multiplexing
类别
资金
- National Basic Research Program of China [2013CBA01702]
- National Natural Science Foundation of China [61377016, 61575055, 11104049, 10974039]
- Specialized Research Fund for the Doctoral Program of Higher education [20102302120009]
- Program for New Century Excellent Talents in University [NCET-12-0148]
We propose an optical multiple-image encryption scheme based on computational ghost imaging with the position multiplexing. In the encryption process, each plain image is encrypted into an intensity vector by using the computational ghost imaging with a different diffraction distance. The final ciphertext is generated by superposing all the intensity vectors together. Different from common multipleimage cryptosystems, the ciphertext in the proposed scheme is simply an intensity vector instead of a complex amplitude. Simulation results are presented to demonstrate the validity and security of the proposed multiple-image encryption method. The multiplexing capacity of the proposed method is also investigated. Optical experiment is presented to verify the validity of the proposed scheme in practical application. (C) 2015 Elsevier B.V. All rights reserved.
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