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Proceedings Article

Phase-retrieval algorithms applied in a 4-f system for optical image encryption: a comparison

[+] Author Affiliations
Guohai Situ, Jingjuan Zhang

College of Physical Science, CAS (China)

Proc. SPIE 5642, Information Optics and Photonics Technology, 108 (January 18, 2005); doi:10.1117/12.570836
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From Conference Volume 5642

  • Information Optics and Photonics Technology
  • Guoguang Mu; Francis T. S. Yu; Suganda Jutamulia
  • Beijing, China | November 08, 2004

abstract

Phase retrieval algorithms based on 4-f system for optical image encryption are compared in respect of the image retrieval quality and the convergence. Simulation results show that enlarging the searching space can decrypt the image with extremely high quality, while employing the searching strategy of modifying both the phase-distributions in the input and the frequency planes can result in much faster convergence for the algorithm.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Guohai Situ and Jingjuan Zhang
"Phase-retrieval algorithms applied in a 4-f system for optical image encryption: a comparison", Proc. SPIE 5642, Information Optics and Photonics Technology, 108 (January 18, 2005); doi:10.1117/12.570836; http://dx.doi.org/10.1117/12.570836


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