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Title: Multiple-stage pure phase encoding with biometric information
Authors: Chen, W 
Keywords: Iterative phase retrieval
Multistage system
Optical image processing
Phase encoding
Phase-only masks
Issue Date: 2018
Publisher: SPIE-International Society for Optical Engineering
Source: Proceedings of SPIE : the International Society for Optical Engineering, 2018, v. 10620, 1062007 How to cite?
Journal: Proceedings of SPIE : the International Society for Optical Engineering 
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.
Description: 2017 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology, OIT 2017, Beijing, China, 28-30 Oct 2017
ISBN: 9.78151E+12
ISSN: 0277-786X
EISSN: 1996-756X
DOI: 10.1117/12.2284111
Appears in Collections:Conference Paper

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