Improvement of the shift tolerance to the double random phase encoding encryption system

Bor Wang, Ching Cherng Sun, Wei Chia Su

Research output: Contribution to journalConference articlepeer-review

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.

Original languageEnglish
Pages (from-to)215-221
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3804
StatePublished - 1999
EventProceedings of the 1999 ALgorithms, Devices, and Systems for Optical Information Processing III - Denver, CO, USA
Duration: 20 Jul 199921 Jul 1999

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