Multiple-stage pure phase encoding with biometric information

Wen Chen

doi:10.1117/12.2284111

12 January 2018 Multiple-stage pure phase encoding with biometric information

Wen Chen

Proceedings Volume 10620, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology; 1062007 (2018) https://doi.org/10.1117/12.2284111
Event: International Conference on Optical Instruments and Technology 2017, 2017, Beijing, China

Abstract

In recent years, many optical systems have been developed for securing information, and optical encryption/encoding has attracted more and more attention due to the marked advantages, such as parallel processing and multiple-dimensional characteristics. In this paper, an optical security method is presented based on pure phase encoding with biometric information. Biometric information (such as fingerprint) is employed as security keys rather than plaintext used in conventional optical security systems, and multiple-stage phase-encoding-based optical systems are designed for generating several phase-only masks with biometric information. Subsequently, the extracted phase-only masks are further used in an optical setup for encoding an input image (i.e., plaintext). Numerical simulations are conducted to illustrate the validity, and the results demonstrate that high flexibility and high security can be achieved.

Citation Download Citation

Wen Chen "Multiple-stage pure phase encoding with biometric information", Proc. SPIE 10620, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology, 1062007 (12 January 2018); https://doi.org/10.1117/12.2284111

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KEYWORDS

Biometrics

Computer programming

Information security

Computer security

Optical design

Data processing

Image processing

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