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http://dx.doi.org/10.9711/KTAJ.2022.24.6.513

An evaluation methodology for cement concrete lining crack segmentation deep learning model  

Ham, Sangwoo (Dept. of Geoinformatics, University of Seoul)
Bae, Soohyeon (Dept. of Geoinformatics, University of Seoul)
Lee, Impyeong (Dept. of Geoinformatics, University of Seoul)
Lee, Gyu-Phil (Dept. of Geotechnical Engineering Research, Korea Institute of Civil Engineering and Building Technology)
Kim, Donggyou (Dept. of Geotechnical Engineering Research, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.24, no.6, 2022 , pp. 513-524 More about this Journal
Abstract
Recently, detecting damages of civil infrastructures from digital images using deep learning technology became a very popular research topic. In order to adapt those methodologies to the field, it is essential to explain robustness of deep learning models. Our research points out that the existing pixel-based deep learning model evaluation metrics are not sufficient for detecting cracks since cracks have linear appearance, and proposes a new evaluation methodology to explain crack segmentation deep learning model more rationally. Specifically, we design, implement and validate a methodology to generate tolerance buffer alongside skeletonized ground truth data and prediction results to consider overall similarity of topology of the ground truth and the prediction rather than pixel-wise accuracy. We could overcome over-estimation or under-estimation problem of crack segmentation model evaluation through using our methodology, and we expect that our methodology can explain crack segmentation deep learning models better.
Keywords
Deep learning; Semantic segmentation; Performance evaluation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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