Long-range polarimetric imaging through fog

Julien Fade; Swapnesh Panigrahi; Anthony Carré; Ludovic Frein; Cyril Hamel; Fabien Bretenaker; Hema Ramachandran; Mehdi Alouini

doi:10.1364/AO.53.003854

Long-range polarimetric imaging through fog

Julien Fade, Swapnesh Panigrahi, Anthony Carré, Ludovic Frein, Cyril Hamel, Fabien Bretenaker, Hema Ramachandran, Mehdi Alouini

Research output: Contribution to journal › Article › peer-review

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, polari-metric contrast, etc.). With the limited-dynamics detector used, a maximum fourfold increase in contrast was demonstrated under bright background illumination using polarimetric difference image.

Original language	English
Pages (from-to)	3854-3865
Number of pages	12
Journal	Applied Optics
Issue number	18
DOIs	https://doi.org/10.1364/AO.53.003854
Publication status	Published - 20 Jun 2014
Externally published	Yes

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10.1364/AO.53.003854

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title = "Long-range polarimetric imaging through fog",

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, polari-metric contrast, etc.). With the limited-dynamics detector used, a maximum fourfold increase in contrast was demonstrated under bright background illumination using polarimetric difference image.",

author = "Julien Fade and Swapnesh Panigrahi and Anthony Carr{\'e} and Ludovic Frein and Cyril Hamel and Fabien Bretenaker and Hema Ramachandran and Mehdi Alouini",

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AU - Fade, Julien

AU - Panigrahi, Swapnesh

AU - Carré, Anthony

AU - Frein, Ludovic

AU - Hamel, Cyril

AU - Bretenaker, Fabien

AU - Ramachandran, Hema

AU - Alouini, Mehdi

PY - 2014/6/20

Y1 - 2014/6/20

N2 - 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, polari-metric contrast, etc.). With the limited-dynamics detector used, a maximum fourfold increase in contrast was demonstrated under bright background illumination using polarimetric difference image.

AB - 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, polari-metric contrast, etc.). With the limited-dynamics detector used, a maximum fourfold increase in contrast was demonstrated under bright background illumination using polarimetric difference image.

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DO - 10.1364/AO.53.003854

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EP - 3865

JO - Applied Optics

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Long-range polarimetric imaging through fog

Abstract

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