Journal of information and communication convergence engineering

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Three-Dimensional Optical Encryption of Quick Response Code

  • Kim, Youngjun (Department of Electrical, Electronic, and Control Engineering, IITC, Hankyong National University) ;
  • Yun, Hui (Department of Electrical, Electronic, and Control Engineering, IITC, Hankyong National University) ;
  • Cho, Myungjin (Department of Electrical, Electronic, and Control Engineering, IITC, Hankyong National University)
  • Received : 2018.05.16
  • Accepted : 2018.06.11
  • Published : 2018.09.30
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Abstract

In this paper, we present a three-dimensional (3D) optical encryption technique for quick response (QR) code using computational synthesized integral imaging, computational volumetric reconstruction, and double random phase encryption. Two-dimensional (2D) QR code has many advantages, such as enormous storage capacity and high reading speed. However, it does not protect primary information. Therefore, we present 3D optical encryption of QR code using double random phase encryption (DRPE) and an integral imaging technique for security enhancement. We divide 2D QR code into four parts with different depths. Then, 2D elemental images for each part of 2D QR code are generated by computer synthesized integral imaging. Generated 2D elemental images are encrypted using DRPE, and our method increases the level of security. To validate our method, we report simulations of 3D optical encryption of QR code. In addition, we calculated the peak side-lobe ratio (PSR) for performance evaluation.

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