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- W3085285474 abstract "A novel chaotic cryptosystem for hyperspectral image, in this paper, is proposed by using a 4D hyperchaotic system in gyrator transform domains. In encryption process, a random spiral phase function (RSPF) is designed to generate variable spiral phase mask, which can be used for phase encoding with the hyperspectral image. Subsequently, the 4D hyperchaotic system is utilized to generate the chaotic sequences and these chaotic data is employed in designing RSPF, scrambling the hyperspectral image and synthesizing complex ciphertext, respectively. Finally, an improved spiral phase transform (SPT) in gyrator domains is implemented to obtain the ciphertext. To enhance the security of the encryption scheme, the ciphertext is reorganized according to the hyperchaotic attractor. Theoretical simulation analysis is given to demonstrate the validity and robustness of the proposed cryptosystem." @default.
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- W3085285474 date "2021-02-01" @default.
- W3085285474 modified "2023-10-09" @default.
- W3085285474 title "Optical cryptosystem scheme for hyperspectral image based on random spiral transform in gyrator domains" @default.
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- W3085285474 doi "https://doi.org/10.1016/j.optlaseng.2020.106375" @default.
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