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|Title:||Optical encryption based on 3-D sphere and phase retrieval in gyrator transform domain|
|Authors:||Chen, W. |
optical image encryption
|Source:||Chen, W.,Chen, X. (2013). Optical encryption based on 3-D sphere and phase retrieval in gyrator transform domain. IEEE Region 10 Annual International Conference, Proceedings/TENCON : -. ScholarBank@NUS Repository. https://doi.org/10.1109/TENCON.2013.6718955|
|Abstract:||With the rapid development of modern technologies, information security has attracted more and more current attention. In this paper, we present optical image encryption based on 3-D sphere and phase retrieval in gyrator transform domain. The plaintext is divided into a series of small quadratic blocks, and each block is treated as a particle. The series of particles is distributed in 3-D spheres, and is encrypted into one phase-only mask based on an iterative phase retrieval algorithm. During image decryption, the extracted phase-only mask is rotated and illuminated to sequentially extract a series of focused particles. Subsequently, a decrypted image can be obtained by incorporating all the decoded particles in the transverse domain. Numerical experiment is conducted to demonstrate feasibility and effectiveness of the presented method. © 2013 IEEE.|
|Source Title:||IEEE Region 10 Annual International Conference, Proceedings/TENCON|
|Appears in Collections:||Staff Publications|
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