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Proceedings Paper

Phase-retrieval algorithms applied in a 4-f system for optical image encryption - a comparison
Author(s): Guohai Situ; Jingjuan Zhang
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Paper 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.

Paper Details

Date Published: 11 January 2005
PDF: 8 pages
Proc. SPIE 5642, Information Optics and Photonics Technology, (11 January 2005); doi: 10.1117/12.570836
Show Author Affiliations
Guohai Situ, College of Physical Science, CAS (China)
Jingjuan Zhang, College of Physical Science, CAS (China)

Published in SPIE Proceedings Vol. 5642:
Information Optics and Photonics Technology
Guoguang Mu; Francis T. S. Yu; Suganda Jutamulia, Editor(s)

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