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http://hdl.handle.net/10397/65706
Title: | Optical cryptosystem based on single-pixel encoding using the modified Gerchberg-Saxton algorithm with a cascaded structure | Authors: | Chen, W | Issue Date: | 1-Dec-2016 | Source: | Journal of the Optical Society of America. A, Optics, image science, and vision, 1 Dec. 2016, v. 33, no. 12, p. 2305-2311 | Abstract: | In this paper, an optical cryptosystem is developed based on single-pixel encoding using the modified Gerchberg-Saxton algorithm with a cascaded structure. A series of random intensity-only patterns are pre-generated as principal security keys, and phase-only masks for optical encoding and decoding are generated by the modified Gerchberg-Saxton algorithm with a cascaded structure. Subsequently, a series of 1D intensity points, i.e., ciphertexts, are recorded by a single-pixel detector, which may provide a potential for establishing low-cost and compact security systems. The phase-mask generation process can be flexibly designed by modifying the Gerchberg-Saxton algorithm with a cascaded structure; hence high sensitivity and the large indirect space for phase can be guaranteed. It is also illustrated that compared with previous works, the higher eavesdropping percentage is requested to the attackers in the proposed single-pixel optical cryptosystem. The proposed method using a cascaded structure provides a novel strategy for single-pixel intensity-modulated optical security. | Publisher: | Optical Society of America | Journal: | Journal of the Optical Society of America. A, Optics, image science, and vision | ISSN: | 1084-7529 | EISSN: | 1520-8532 | DOI: | 10.1364/JOSAA.33.002305 | Rights: | © 2016 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. The following publication Wen Chen, "Optical cryptosystem based on single-pixel encoding using the modified Gerchberg–Saxton algorithm with a cascaded structure," J. Opt. Soc. Am. A 33, 2305-2311 (2016) is available at https://doi.org/10.1364/JOSAA.33.002305. |
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27._JOSAA-GS-Single-V2-16.pdf | Pre-Published version | 2.35 MB | Adobe PDF | View/Open |
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