Optical joint transform encryption using binary phase difference key mask

Chau Jern Cheng*, Li Chien Lin, Chien Ming Wang, Chiung Liang Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


This study describes optical encryption based on joint transform correlator architectures using a binary phase difference key mask, designed by discrete sinc function interpolation. The key mask has the required properties of space-limited and phase-mostly spectrum for accurate image recovery. Gray-level image encryption and decryption performance measures are discussed as well.

Original languageEnglish
Pages (from-to)367-371
Number of pages5
JournalOptical Review
Issue number5
Publication statusPublished - 2005 Sept
Externally publishedYes


  • Joint transform correlator
  • Optical encryption
  • Sinc interpolation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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