Volume 29, Issue 8 e2965
RESEARCH ARTICLE

Concrete crack segmentation based on convolution–deconvolution feature fusion with holistically nested networks

Shengjun Xu

Shengjun Xu

School of Information and Control Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an, Shaanxi, 710055 China

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Ming Hao

Corresponding Author

Ming Hao

School of Information and Control Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an, Shaanxi, 710055 China

Correspondence

Ming Hao, School of Information and Control Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an, Shaanxi 710055, China.

Email: [email protected]

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Guanghui Liu

Guanghui Liu

School of Information and Control Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an, Shaanxi, 710055 China

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Yuebo Meng

Yuebo Meng

School of Information and Control Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an, Shaanxi, 710055 China

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Jiuqiang Han

Jiuqiang Han

School of Information and Control Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an, Shaanxi, 710055 China

AI & DE Guangdong Province Lab (GZ), No.70 Yuean Road, Guangzhou, Guangdong, 510335 China

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Ya Shi

Ya Shi

School of Information and Control Engineering, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an, Shaanxi, 710055 China

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First published: 23 March 2022
Citations: 21

Funding information: Basic Research Foundation of Xi'an University of Architecture and Technology, Grant/Award Numbers: JC1706, JC1703; Special Research Project of Education Department of Shaanxi Province, Grant/Award Number: 18JK0477; Natural Science Foundation of Shaan Xi, Grant/Award Numbers: 2015JM6276, 2017JM6106, 2019JQ-760, 2020JM-473, 2020JM-472; General Projects of Key Research and Development Program of Shaanxi Province, Grant/Award Number: 2021SF-429; National Natural Science Foundation of P. R. China, Grant/Award Numbers: 61803293, 51678470

Summary

Automatic crack detection on concrete surfaces has become increasingly important for the health diagnosis of concrete structures to prevent possible malfunctions or accidents. In this paper, a concrete crack segmentation network based on convolution–deconvolution feature fusion with holistically nested networks is proposed. The proposed network adopts an encoder–decoder structure and uses VGG-16 as the basic feature extraction network. First, considering the problem that the VGG-16 network can extract redundant features in the encoding stage, based on the channel attention mechanism, the channel spatial correlation and global information are used to emphasize crack features to remove redundant features. Second, through the convolution–deconvolution feature fusion module, the deep semantic information of the deconvolution is effectively fused with the shallow features of convolution, which effectively improves the semantic crack feature information extracted at each stage of the VGG-16 network. Finally, based on a multiscale supervised learning mechanism, holistically nested networks are used to fuse the prediction results from different scales, which enhances the network's ability to express linear topological structures and improves the accuracy of crack segmentation. Through a large number of experiments on the Bridge_Crack_Image_Data dataset and CFD dataset, we demonstrate that compared with other deep networks, the proposed network not only achieves better segmentation results for cracks of different widths but is also more robust.

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