Unified Approach to Pavement Crack and Sealed Crack Detection Using Preclassification Based on Transfer Learning
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- 1 March 2018
- journal article
- research article
- Published by American Society of Civil Engineers (ASCE) in Journal of Computing in Civil Engineering
Abstract
This work focuses on solving two challenging problems in pavement crack detection: (1) noises caused by complicated pavement textures and intensity inhomogeneity cannot be removed effectively, which makes crack extraction difficult; and (2) sealed cracks and cracks with similar intensity and width cannot be separated correctly, which makes data analysis and budgeting inaccurate. Here, a unified crack and sealed crack detection approach is proposed that can detect and separate both cracks and sealed cracks under the same framework. It trains a deep convolutional neural network to preclassify a pavement image into crack, sealed crack, and background regions. A blockwise thresholding method is developed to segment the crack/sealed crack pixels efficiently and effectively. Finally, tensor voting–based curve detection is applied to extract the crack/sealed crack. The proposed approach is validated using 800 images (each ); the experimental results demonstrate that this approach accurately distinguishes cracks from sealed cracks and achieves very good detection performance ( ; ).
Keywords
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