TY - JOUR AU - Marti“nez, Jose“ Luis AB - 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. TI - Hiding binary optical data with orthogonal circular polarizations JF - Optical Engineering DO - 10.1117/1.2890479 DA - 2008-03-01 UR - https://www.deepdyve.com/lp/spie/hiding-binary-optical-data-with-orthogonal-circular-polarizations-6JiCwbTCtn SP - 030504 EP - 030504-3 VL - 47 IS - 3 DP - DeepDyve ER -