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Proceedings Paper

Improvement of the shift tolerance in the double random phase encoding encryption system
Author(s): Bor Wang; Ching-Cherng Sun; Wei-Chia Su
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Paper Abstract

Double random phase encoding technique is a valuable and effective method for optical image encryption. However, a precise alignment is required when optical setup is performed. In this paper, we investigate the shift tolerance property of the technique. The theory of the robustness to data loss of the encrypted image is proposed. According to the theory, we propose a simple and novel method to improve the shift tolerance of the decrypting phase mask. Both theory and computer simulation are presented.

Paper Details

Date Published: 1 October 1999
PDF: 7 pages
Proc. SPIE 3804, Algorithms, Devices, and Systems for Optical Information Processing III, (1 October 1999); doi: 10.1117/12.363967
Show Author Affiliations
Bor Wang, National Central Univ. (Taiwan)
Ching-Cherng Sun, National Central Univ. (Taiwan)
Wei-Chia Su, National Central Univ. (Taiwan)

Published in SPIE Proceedings Vol. 3804:
Algorithms, Devices, and Systems for Optical Information Processing III
Bahram Javidi; Demetri Psaltis, Editor(s)

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