Optical image encryption based on phase retrieval combined with three-dimensional particle-like distribution

Wen Chen, Xudong Chen, Colin J.R. Sheppard

Research output: Journal article publicationJournal articleAcademic researchpeer-review

35 Citations (Scopus)


We propose a new phase retrieval algorithm for optical image encryption in three-dimensional (3D) space. The two-dimensional (2D) plaintext is considered as a series of particles distributed in 3D space, and an iterative phase retrieval algorithm is developed to encrypt the series of particles into phase-only masks. The feasibility and effectiveness of the proposed method are demonstrated by a numerical experiment, and the advantages and security of the proposed optical cryptosystems are also analyzed and discussed.
Original languageEnglish
Article number075402
JournalJournal of Optics (United Kingdom)
Issue number7
Publication statusPublished - 1 Jul 2012
Externally publishedYes


  • optical decryption
  • optical image encryption
  • particle-like distribution
  • phase retrieval
  • three-dimensional processing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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