Hiding binary optical data with orthogonal circular polarizations

Jose Luis Martinez; Ignacio S. Moreno; Felipe Mateos

doi:10.1117/1.2890479

1 March 2008 Hiding binary optical data with orthogonal circular polarizations

Jose Luis Martinez, Ignacio S. Moreno, Felipe Mateos

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Optical Engineering, Vol. 47, Issue 3, 030504 (March 2008). https://doi.org/10.1117/1.2890479

Abstract

We discuss a very simple method to encode binary data as circular polarization states with opposite helicity by means of a standard twisted nematic liquid crystal display (TN-LCD). This idea is applied to produce a steganographic imaging system, where binary data are hidden on a background with the same polarization but opposed helicity. A variant is also proposed that maintains some visible information. Experimental results obtained with a commercial TN-LCD are presented.

©(2008) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Jose Luis Martinez, Ignacio S. Moreno, and Felipe Mateos "Hiding binary optical data with orthogonal circular polarizations," Optical Engineering 47(3), 030504 (1 March 2008). https://doi.org/10.1117/1.2890479

Published: 1 March 2008

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