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Fractional Fourier transform-based optical encryption with treble random phase-encoding

  • Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We propose a new architecture of optical encryption technique using the fractional Fourier transform with three statistically independent random phase masks. Compared with the existing double-phase encoding method in the fractional Fourier-domain, the proposed extra phase mask in the last fractional Fourier domain makes the architecture symmetrical, and additive processing to the encrypted image can be turned into complex stationary white noise after decryption, and enlarge the key space without any degradation of its robustness to blind decryption. This property can be utilized to improve the quality of the recover image. Simulation results have verified the validity.

Original languageEnglish
Title of host publicationInternational Symposium on Photoelectronic Detection and Imaging 2007
Subtitle of host publicationRelated Technologies and Applications
DOIs
Publication statusPublished - 2008
EventInternational Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Related Technologies and Applications - Beijing, China
Duration: 9 Sept 200712 Sept 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6625
ISSN (Print)0277-786X

Conference

ConferenceInternational Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Related Technologies and Applications
Country/TerritoryChina
CityBeijing
Period9/09/0712/09/07

Keywords

  • Fractional fourier transform
  • Random phase-encoding

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