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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 26 — Sep. 10, 2000
  • pp: 4788–4793

Shift-tolerance property of an optical double-random phase-encoding encryption system

Bor Wang, Ching-Cherng Sun, Wei-Chia Su, and Arthur E. T. Chiou  »View Author Affiliations


Applied Optics, Vol. 39, Issue 26, pp. 4788-4793 (2000)
http://dx.doi.org/10.1364/AO.39.004788


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Abstract

We investigate the shift-tolerance property of the decrypting phase mask in an optical double-random phase-encoding encryption system. A simple method for improving the shift tolerance of the phase mask is proposed. We demonstrate how the robustness to data loss of the encrypted image extends the shift tolerance of the decrypting phase mask. The signal-to-noise ratio is calculated. Both a computer simulation and an experiment are presented.

© 2000 Optical Society of America

OCIS Codes
(070.4560) Fourier optics and signal processing : Data processing by optical means
(070.6110) Fourier optics and signal processing : Spatial filtering

History
Original Manuscript: November 8, 1999
Revised Manuscript: June 5, 2000
Published: September 10, 2000

Citation
Bor Wang, Ching-Cherng Sun, Wei-Chia Su, and Arthur E. T. Chiou, "Shift-tolerance property of an optical double-random phase-encoding encryption system," Appl. Opt. 39, 4788-4793 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-26-4788

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