Abstract:When machine vision is used to monitor the health of tunnel lining structure, there are errors in measuring the crack length information due to the prevalence of fracture in the detected cracks. This paper proposes a graph theory based crack backbone connection algorithm. First, the morphological principle is used to describe the point characteristics of the crack skeleton line. Then the graph theory principle is employed to establish the tree structure of the crack skeleton line and the mapping relationship b… Show more
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