Liu Xin-hong, Su Cheng-yue, Chen Jing, et al. Real Time Detection of High Resolution Bridge Crack Image[J]. 2022, 39(6): 73-79.DOI: 10.12052/gdutxb.210038.
Real Time Detection of High Resolution Bridge Crack Image
The problem of current algorithms is lack of timeliness and reliability in bridge crack detection. In this paper
a real-time algorithm on embedded platform is proposed. Firstly
moving average method is used to segment the image coarsely. Then
candidate crack fragments are selected by region growing method using the geometric features of their contours. Finally
a crack merging model with two criteria is built to merge the crack fragments recursively and suppress interference
based on the prior condition of bridge cracks. Experimental results show that the proposed method performs better than several existing methods by 115% at least
especially on extracting hairline cracks and complex cases with uneven illumination and dirty mark. Dealing with an image with 15 megapixel on embedded platform
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