Advances in Civil Engineering

Research Article

Image-Based Framework for Concrete Surface Crack Monitoring and Quantification

Figure 15

Plots of the extracted crack widths at times , and (a)–(c) using the proposed level set-based approximate method and (d)–(f) using the explicit exact method.
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(a) 1
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(b) 2
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(c) 3
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(d) 1
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(e) 2
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(f) 3