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Article

Polarimetric Imaging vs. Conventional Imaging: Evaluation of Image Contrast in Fog

Centre for Sensor, Instrumentation and Systems Development, Universitat Politècnica de Catalunya (CD6-UPC), Rambla Sant Nebridi 10, E08222 Terrassa, Spain
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Academic Editors: Frédéric Bernardin, Jean-Philippe Tarel and Pierre Duthon
Atmosphere 2021, 12(7), 813; https://doi.org/10.3390/atmos12070813
Received: 30 April 2021 / Revised: 8 June 2021 / Accepted: 21 June 2021 / Published: 24 June 2021
(This article belongs to the Special Issue Vision under Adverse Weather Conditions)
We compare conventional intensity imaging against different modes of polarimetric imaging by evaluating the image contrast of images taken in a controlled foggy environment. A small-scale fog chamber has been designed and constructed to create the necessary controlled foggy environment. A division-of-focal-plane camera of linear polarization and a linearly polarized light source has been used for performing the experiments with polarized light. In order to evaluate the image contrast of the different imaging modes, the Michelson contrast of samples of different materials relative to their background has been calculated. The higher the image contrast, the easier it is to detect and segment the targets of interest that are surrounded by fog. It has been quantitatively demonstrated that polarimetric images present an improvement in contrast compared to conventional intensity images in the situations studied. View Full-Text
Keywords: turbid media; fog; polarimetry; memory effect; polarimetric imaging; image processing; contrast; detection turbid media; fog; polarimetry; memory effect; polarimetric imaging; image processing; contrast; detection
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MDPI and ACS Style

Ballesta-Garcia, M.; Peña-Gutiérrez, S.; Val-Martí, A.; Royo, S. Polarimetric Imaging vs. Conventional Imaging: Evaluation of Image Contrast in Fog. Atmosphere 2021, 12, 813. https://doi.org/10.3390/atmos12070813

AMA Style

Ballesta-Garcia M, Peña-Gutiérrez S, Val-Martí A, Royo S. Polarimetric Imaging vs. Conventional Imaging: Evaluation of Image Contrast in Fog. Atmosphere. 2021; 12(7):813. https://doi.org/10.3390/atmos12070813

Chicago/Turabian Style

Ballesta-Garcia, Maria, Sara Peña-Gutiérrez, Aina Val-Martí, and Santiago Royo. 2021. "Polarimetric Imaging vs. Conventional Imaging: Evaluation of Image Contrast in Fog" Atmosphere 12, no. 7: 813. https://doi.org/10.3390/atmos12070813

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