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Achievements and challenges in machine vision-based inspection of large concrete structures

Accepted version
Peer-reviewed

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Type

Article

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Authors

Koch, C 
Paal, S 
Rashidi, A 
Zhu, Z 
König, M 

Abstract

jats:p Large concrete structures need to be inspected in order to assess their current physical and functional state, to predict future conditions, to support investment planning and decision making, and to allocate limited maintenance and rehabilitation resources. Current procedures in condition and safety assessment of large concrete structures are performed manually leading to subjective and unreliable results, costly and time-consuming data collection, and safety issues. To address these limitations, automated machine vision-based inspection procedures have increasingly been proposed by the research community. This paper presents current achievements and open challenges in vision-based inspection of large concrete structures. First, the general concept of Building Information Modeling is introduced. Then, vision-based 3D reconstruction and as-built spatial modeling of concrete civil infrastructure are presented. Following that, the focus is set on structural member recognition as well as on concrete damage detection and assessment exemplified for concrete columns. Although some challenges are still under investigation, it can be concluded that vision-based inspection methods have significantly improved over the last 10 years, and now, as-built spatial modeling as well as damage detection and assessment of large concrete structures have the potential to be fully automated. </jats:p>

Description

Keywords

building information modeling, BIM, 3D reconstruction, as-built modeling, machine vision, image processing, damage detection, inspection

Journal Title

Advances in Structural Engineering

Conference Name

Journal ISSN

1369-4332
2048-4011

Volume Title

17

Publisher

SAGE Publications
Sponsorship
Engineering and Physical Sciences Research Council (EP/I019308/1)
Engineering and Physical Sciences Research Council (EP/K000314/1)
Engineering and Physical Sciences Research Council (EP/L010917/1)
National Science Foundation (NSF) (via Georgia Institute of Technology) (RB116-S1)