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Title: Long-range polarimetric imaging through fog.
Authors: Fade, Julien
Panigrahi, Swapnesh
Carre, Anthony
Frein, Ludovic
Ramachandran, Hema
+3 Co-authors
Keywords: Imaging through turbid media
Polarimetric imaging
Noise in imaging systems
Issue Date: 20-Jun-2014
Publisher: Optical Society of America
Citation: Applied Optics, 2014, Vol. 53, p3854
Abstract: We report an experimental implementation of long-range polarimetric imaging through fog over kilometric distance in real field atmospheric conditions. An incoherent polarized light source settled on a telecommunication tower is imaged at a distance of 1.3 km with a snapshot polarimetric camera including a birefringent Wollaston prism, allowing simultaneous acquisition of two images along orthogonal polarization directions. From a large number of acquisitions datasets and under various environmental conditions (clear sky/fog/haze, day/night), we compare the efficiency of using polarized light for source contrast increase with different signal representations (intensity, polarimetric difference, polarimetric contrast, etc.). With the limited-dynamics detector used, a maximum fourfold increase in contrast was demonstrated under bright background illumination using polarimetric difference image.
Description: Restricted Access.
ISSN: 2155-3165
2155-3165 (online)
Alternative Location:
Copyright: 2014 Optical Society of America
Appears in Collections:Research Papers (LAMP)

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