Analysis of edge-detection techniques for crack identification in bridges
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...…with realworld situations using pre- and postprocessing methods to detect one specific type of structural damage, such as concrete cracks (Abdel-Qader et al., 2003; Nishikawa et al., 2012), concrete spalling (German et al., 2012), steel cracks (Yeum and Dyke, 2015), loosened bolts (Park…...
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...Most studies have focused on image-processing techniques (IPTs) and testing their compatibility with realworld situations using pre- and postprocessing methods to detect one specific type of structural damage, such as concrete cracks (Abdel-Qader et al., 2003; Nishikawa et al., 2012), concrete spalling (German et al....
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652 citations
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...Low-level processing Intermediate-level processing High-level processing...
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Cites background from "Analysis of edge-detection techniqu..."
...They perform well for concrete or pavement surfaces while the cracks have stronger edges than noisy patterns [5]–[7]....
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500 citations
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"Analysis of edge-detection techniqu..." refers background in this paper
...The Fourier transform~FT! is a frequency-based, discrete trans form that is optimized for machine calculation~Cooley and Tukey 1965!....
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