Semi-automatic crack width measurement using an OrthoBoundary algorithm

Zhe Li, Yi Miao, Mehran Eskandari Torbaghan*, Hongfei Zhang, Jiupeng Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Evaluation of pavements' crack severity levels currently relies heavily on width measurement, which necessitates the development of a rapid, and high-accurate, automatic measurement approach for complex pavement cracks. This paper presents an OrthoBoundary algorithm that leverages the crack boundary and skeleton directions to determine crack propagation. Comparative analysis has been conducted between OrthoBoundary and Area-Length, Skeleton Shortest Distance (SSD), Edge Shortest Distance (ESD), and Orthogonal Projection (OP) methods. Results indicate that the OrthoBoundary algorithm achieves an average accuracy of 90.10%, outperforming the Area-Length (86.60%), SSD (76.01%), ESD (87.24%), and OP (88.07%) methods. Notably, the OrthoBoundary algorithm also exhibits processing speeds approximately 120 times faster than other considered methods while demonstrating improved robustness and user-friendliness. It has significant potential to quantify and assess the severity of pavement cracks, as well as to facilitate maintenance decision-making processes in road infrastructure management systems.
Original languageEnglish
Article number105251
Number of pages17
JournalAutomation in Construction
Volume158
Early online date26 Dec 2023
DOIs
Publication statusPublished - Feb 2024

Bibliographical note

Acknowledgments:
This study was supported by the National Natural Science Foundation of China (No. 51978068), Natural Science Foundation of Shaanxi Province (No. 2020JM-217). The authors gratefully acknowledge their financial support. The first author would also like to acknowledge the China Scholarship Council (CSC) for supporting his visit to University of Birmingham, UK (No. 202106560034).

Keywords

  • Pavement crack
  • Width measurement
  • Orthogonal projection
  • Principal component analysis
  • Skeleton

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