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Title |
Estimation of Image-based Damage Location and Generation of Exterior Damage Map for Port Structures
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Authors |
김방현(Banghyeon Kim) ; 소상윤(Sangyoon So) ; 조수진(Soojin Cho) |
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DOI |
https://doi.org/10.11112/jksmi.2023.27.5.49 |
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Keywords |
손상 위치; 특징 탐지; 호모그래피; 항만 구조물; 외관조사망도 Damage location; Feature detection; Homography; Port structures; Exterior damage map |
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Abstract |
This study proposed a damage location estimation method for automated image-based port infrastructure inspection. Memory efficiency was improved by calculating the homography matrix using feature detection technology and outlier removal technology, without going through the 3D modeling process and storing only damage information. To develop an algorithm specialized for port infrastructure, the algorithm was optimized through ground-truth coordinate pairs created using images of port infrastructure. The location errors obtained by applying this to the sample and concrete wall were (X: 6.5cm, Y: 1.3cm) and (X: 12.7cm, Y: 6.4cm), respectively. In addition, by applying the algorithm to the concrete wall and displaying it in the form of an exterior damage map, the possibility of field application was demonstrated.
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