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Abstract

In view of problems such as low efficiency, poor accuracy, and imprecise three-dimensional (3D) location of defects in apparent defect inspection of bridges, this paper proposed a method for apparent defect inspection of bridges based on a 3D reconstruction model. By taking the indoor rectangular beam as the object, a three-dimensional bridge model was established, and its accuracy was verified. Then, based on the point cloud data derived from the model, a program was written in Python to realize the identification, measurement, and parameter derivation of apparent defects of bridges. Dade Bridge in Kunming, Yunnan Province was set as the background, and the whole-process project application was carried out. The results show that the method can focus on the automatic detection and location of apparent defects of bridges, significantly improve the inspection efficiency, visualization, and automation degree, and have a good application prospect.

Publication Date

7-14-2023

DOI

10.14048/j.issn.1671-2579.2023.03.027

First Page

171

Last Page

177

Submission Date

March 2025

Reference

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