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Sensors 2009, 9(11), 8863-8883; doi:10.3390/s91108863

Asphalted Road Temperature Variations Due to Wind Turbine Cast Shadows

Department of Systems Engineering and Automatics, University of La Laguna, Avda. Francisco Sánchez S/N, 38204 La Laguna, Canary Islands, Spain
Author to whom correspondence should be addressed.
Received: 6 July 2009 / Revised: 9 October 2009 / Accepted: 31 October 2009 / Published: 5 November 2009
(This article belongs to the Special Issue Image Sensors 2009)


The contribution of this paper is a technique that in certain circumstances allows one to avoid the removal of dynamic shadows in the visible spectrum making use of images in the infrared spectrum. This technique emerged from a real problem concerning the autonomous navigation of a vehicle in a wind farm. In this environment, the dynamic shadows cast by the wind turbines’ blades make it necessary to include a shadows removal stage in the preprocessing of the visible spectrum images in order to avoid the shadows being misclassified as obstacles. In the thermal images, dynamic shadows completely disappear, something that does not always occur in the visible spectrum, even when the preprocessing is executed. Thus, a fusion on thermal and visible bands is performed. View Full-Text
Keywords: shadow removal; road detection; thermal spectrum images shadow removal; road detection; thermal spectrum images

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Arnay, R.; Acosta, L.; Sigut, M.; Toledo, J. Asphalted Road Temperature Variations Due to Wind Turbine Cast Shadows. Sensors 2009, 9, 8863-8883.

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