Current Optics and Photonics

  • 제2권4호
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  • Pages.315-323
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  • 2018
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  • 2508-7266(pISSN)
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  • 2508-7274(eISSN)
한국광학회 (Optical Society of Korea)
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Research on Multiple-image Encryption Scheme Based on Fourier Transform and Ghost Imaging Algorithm

  • Zhang, Leihong (University of Shanghai for Science and Technology) ;
  • Yuan, Xiao (University of Shanghai for Science and Technology) ;
  • Zhang, Dawei (University of Shanghai for Science and Technology) ;
  • Chen, Jian (Anhui Province Key Laboratory of Nondestructive Evaluation)
  • 투고 : 2018.04.26
  • 심사 : 2018.07.11
  • 발행 : 2018.08.25
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초록

A new multiple-image encryption scheme that is based on a compressive ghost imaging concept along with a Fourier transform sampling principle has been proposed. This further improves the security of the scheme. The scheme adopts a Fourier transform to sample the original multiple-image information respectively, utilizing the centrosymmetric conjugation property of the spatial spectrum of the images to obtain each Fourier coefficient in the most abundant spatial frequency band. Based on this sampling principle, the multiple images to be encrypted are grouped into a combined image, and then the compressive ghost imaging algorithm is used to improve the security, which reduces the amount of information transmission and improves the information transmission rate. Due to the presence of the compressive sensing algorithm, the scheme improves the accuracy of image reconstruction.

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참고문헌

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