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Journal of Electronic Imaging

Robust crack detection for unmanned aerial vehicles inspection in an <italic<a-contrario</italic< decision framework
Author(s): Emanuel Aldea; Sylvie Le Hégarat-Mascle
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Paper Abstract

We are interested in the performance of currently available algorithms for the detection of cracks in the specific context of aerial inspection, which is characterized by image quality degradation. We focus on two widely used families of algorithms based on minimal cost path analysis and on image percolation, and we highlight their limitations in this context. Furthermore, we propose an improved strategy based on <italic<a-contrario</italic< modeling which is able to withstand significant motion blur due to the absence of various thresholds which are usually required in order to cope with varying crack appearances and with varying levels of degradation. The experiments are performed on real image datasets to which we applied complex blur, and the results show that the proposed strategy is effective, while other methods which perform well on good quality data experience significant difficulties with degraded images.

Paper Details

Date Published: 30 December 2015
PDF: 16 pages
J. Electron. Imaging. 24(6) 061119 doi: 10.1117/1.JEI.24.6.061119
Published in: Journal of Electronic Imaging Volume 24, Issue 6
Show Author Affiliations
Emanuel Aldea, Univ. Paris-Sud 11 (France)
Sylvie Le Hégarat-Mascle, Univ. Paris-Sud 11 (France)


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