Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2002.07a
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- Pages.631-634
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- 2002
Image encryption using phase-based virtual image and interferometer
- Seo, Dong-Hoan (Department of Electronic Eng., Kyungpook Nat′l University) ;
- Shin, Chang-Mok (Department of Electronic Eng., Kyungpook Nat′l University) ;
- Kim, Jong-Yun (School of Information Technology Eng., Kyungdong University) ;
- Bae, Jang-Keun (Department of electronic Information, Kumi College) ;
- Kim, Jeong-Woo (Department of Electronic, Dongyang University) ;
- Kim, Soo-Joong (Department of Electronic Eng., Kyungpook Nat′l University)
- Published : 2002.07.01
Abstract
In this paper, we propose an improved optical security system using three phase-encoded images and the principle of interference. This optical system based on a Mach-Zehnder interferometer consists of one phase-encoded virtual image to be encrypted and two phase-encoded images, encrypting image and decrypting image, where every pixel in the three images has a phase value of '0' and '