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NCUEIR > College of Science > Graduate Institute of Photonics Technologies > Proceedings > Item 987654321/18236

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/18236

Title:	Improvement of the Shift Tolerance in the Double Random Phase Encoding Encryption System
Authors:	Wang, Bor;Sun, Ching-Cherng;Su, Wei-Chia
Contributors:	光電科技研究所
Date:	1999
Issue Date:	2014-04-01T03:57:19Z
Publisher:	SPIE--The International Society for Optical Engineering.
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.
Relation:	Algorithms, Devices, and Systems for Optical Information Processing III, Proc. SPIE., 3804: 215-221
Appears in Collections:	[Graduate Institute of Photonics Technologies] Proceedings

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