Acta Physica Sinica, Volume. 68, Issue 24, 240503-1(2019)

Multiple-image encryption method based on spatial angle multiplexing and double random phase encoding

Xue-Guang Wang1,2, Ming Li1, Na-Na Yu2, Si-Xing Xi2、*, Xiao-Lei Wang3, and Li-Ying Lang4
Author Affiliations
  • 1School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China
  • 2School of Mathematics and Physics, Hebei University of Engineering, Handan 056038, China
  • 3Institute of Modern Optics, Nankai University, Tianjin 300350, China
  • 4Hebei University of Technology, Tianjin 300401, China
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    Figures & Tables(11)
    Optical setup of multiple-image encryption process. SLM is spatial light modulator, is focal length, is the distance of Fresnel diffraction, is the rotation angle of CCD, is angle between object light O and reference light R.多图像光学加密系统(SLM是空间光调制器, 是透镜焦距, 是菲涅耳衍射距离, 表示CCD旋转后与x轴的夹角, 是物光O与参考光R的夹角)
    (a)−(h) Multiple-image to be encrypted.(a)−(h) 8幅待加密图像
    (a)-(h) Encrypted interference fringes corresponding to 8 original images.(a)—(h)8幅原始图像对应的加密干涉条纹
    Encrypted image.加密结果图
    Decryption system of multiple-image.多图像解密系统
    (a) Decrypted spectrum with right key , where F1-F8 are filters; (b) decrypted spectrum with key .(a) 为解密密钥时频谱图, 其中F1—F8为相应的滤波器; (b) 为解密密钥时频谱图
    (a)-(h) 8 Decrypted images with all right keys.(a)—(h) 8个图像的正确密钥解密结果
    Decrypted results with wrong key : (a) For original image “A”; (a') for original image “A” without filter; (b) for original image “光”; (b') for original image “光” without filter.(a)随机相位密钥错误时原始图“A”解密结果; (a')随机相位密钥错误且无滤波器时原始图“A”解密结果; (b)随机相位密钥错误时原始图“光”解密结果; (b')随机相位密钥错误且无滤波器时原始图“光”解密结果
    Decrypted results with wrong key nm: (a) For original image “B”; (b) for original image “学”.(a)波长nm其他密钥正确时原始图“B”的解密图像; (b)原始图“学”的解密图像
    The dependence on when the dynamic range of is 0-π.当的动态范围为时原始图“息”的CC随菲涅耳衍射距离的变化
    The dependence on when the dynamic range of is 0-1.5π.当的动态范围为时原始图“息”的随菲涅耳衍射距离的变化
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    Xue-Guang Wang, Ming Li, Na-Na Yu, Si-Xing Xi, Xiao-Lei Wang, Li-Ying Lang. Multiple-image encryption method based on spatial angle multiplexing and double random phase encoding[J]. Acta Physica Sinica, 2019, 68(24): 240503-1

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    Paper Information

    Received: Sep. 8, 2019

    Accepted: --

    Published Online: Sep. 17, 2020

    The Author Email:

    DOI:10.7498/aps.68.20191362

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