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Optical Joint Transform Encryption Using Binary Phase Difference Key Mask |
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| Authors: | Chau-Jern Cheng Li-Chien Lin Chien-Ming Wang Chiung-Liang Chen |
| Affiliation: | (1) Department of Communications Engineering, Feng Chia University, Taichung, Taiwan, R.O.C.;(2) Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan, R.O.C. |
| Abstract: | This study describes optical encryption based on joint transform correlator architectures using a binary phase difference key mask, designed by discrete sinc function interpolation. The key mask has the required properties of space-limited and phase-mostly spectrum for accurate image recovery. Gray-level image encryption and decryption performance measures are discussed as well. |
| Keywords: | optical encryption joint transform correlator sinc interpolation |
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