Title :
Optical image encryption using interferometry-based phase masks
Author :
Kim, Jong-Yun ; Park, Se-Joon ; Kim, Cheol-Su ; Bae, Jang-Geun ; Kim, Soo-Joong
Author_Institution :
Dept. of Electron. Eng., Kyungpook Nat. Univ., Taegu, South Korea
fDate :
5/11/2000 12:00:00 AM
Abstract :
A new and simple image encryption scheme and optical decoding technique are presented based on the principle of interference. An original image is encoded into two phase-valued images. The interference image between the two images produces a binary image, which has a two-level intensity value. The performance of the proposed technique is evaluated using computer simulations and optical experiments
Keywords :
cryptography; image coding; light interferometry; optical images; phase shifting masks; interferometry; optical decoding; optical image encryption; phase mask;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000674
