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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.6
- 수록면
- 358 - 362 (5page)
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초록· 키워드
오류제보하기
We present a new scheme for optical encryption of a binary image. In our method, the original binarydata page is first divided into two identical pages. In each data page, the “on” and “off” pixels arerepresented by two discrete phases that are 90° apart. The first page corresponds to the phase conjugationof the second page, and vice versa. In addition, the wavefront of the two data pages is changedsimultaneously from planar to spherical, for better encryption. The wavefront modification is representedby an extra phase shift, which is a function of position on the wavefront. In this way the two separatepages are both encrypted, and therefore the pages cannot be distinguished in a CCD. If the first pageis used as an encrypted data page, then the second page is used as the decryption key, and vice versa.
The decryption can be done by simply combining the two encrypted data pages. It is shown in ourexperiment that encryption and decryption can be fully accomplished in the optical domain.
목차
등록된 정보가 없습니다.
참고문헌 (15)
참고문헌 신청
Jiecai Zheng / 2015 / Image Authentication Using Only Partial Phase Information from a Double-Random-Phase-Encrypted Image in the Fresnel Domain / Current Optics and Photonics 19(3):241~247
이인호 / 2014 / Accumulation Encoding Technique Based on Double Random Phase Encryption for Transmission of Multiple Images / Current Optics and Photonics 18(4):401~405
P. Refregier / 1995 / Optical image encryption based on input plane and Fourier plane random encoding / Opt. Lett 20:767~769
B. Javidi / 1997 / Encrypted optical memory using double-random phase encoding / Appl. Opt 36:1054~1058
O. Matoba / 1999 / Encrypted optical memory system using three-dimensional keys in the Fresnel domain / Opt. Lett 24:762~764
이인호 / 2014 / Accumulation Encoding Technique Based on Double Random Phase Encryption for Transmission of Multiple Images / Current Optics and Photonics 18(4):401~405
P. Refregier / 1995 / Optical image encryption based on input plane and Fourier plane random encoding / Opt. Lett 20:767~769
B. Javidi / 1997 / Encrypted optical memory using double-random phase encoding / Appl. Opt 36:1054~1058
O. Matoba / 1999 / Encrypted optical memory system using three-dimensional keys in the Fresnel domain / Opt. Lett 24:762~764
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