Optimal key mask design for optical encryption based on joint transform correlator architecture

Li Chien Lin, Chau Jern Cheng*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

15 引文 斯高帕斯(Scopus)

摘要

We examine perfect recovery in the optical encryption system based on joint transform correlator architecture, which requires the key mask to be space-limited and phase-only in the frequency domain. Accordingly, a discrete sinc function interpolation is used to generate a binary phase difference mask for image encryption and decryption. Furthermore, the optimal binary phase difference mask is derived from the interpolation process best approximating the ideal sinc function interpolation. The simulation results confirm better recovery of the decrypted image for applying the proposed key masks to the optical encryption system. Especially, the optimal binary phase difference mask significantly enhances the recovery performance.

原文英語
頁(從 - 到)144-154
頁數11
期刊Optics Communications
258
發行號2
DOIs
出版狀態已發佈 - 2006 二月 15
對外發佈

ASJC Scopus subject areas

  • 電子、光磁材料
  • 原子與分子物理與光學
  • 物理與理論化學
  • 電氣與電子工程

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