Computational polarization imaging from a single speckle image

Abstract : We experimentally demonstrate that imaging of the degree of polarization (DOP) can be achieved from a single intensity image acquired under coherent illumination. This computational technique is based on the analysis of the speckle characteristics in a statistically homogeneous neighborhood of the pixel. Over a variety of samples ob- tained experimentally, we show that a simple calibration step allows this method to quickly and simply provide correct estimated values of the DOP, with precision in agreement with theoretical predictions. It is shown that unlike linear polarimetric contrast imaging, this method remains valid on birefringent samples.
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Julien Fade, Muriel Roche, Mehdi Alouini. Computational polarization imaging from a single speckle image. Optics Letters, Optical Society of America, 2012, 37 (3), pp.386-388. ⟨10.1364/OL.37.000386⟩. ⟨hal-00667320⟩



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