A Machine Learning Scheme For Estimating The Diameter of Reinforcing Bars Using Ground Penetrating Radar

Giannakis, Iraklis, Giannopoulos, Antonios and Warren, Craig (2021) A Machine Learning Scheme For Estimating The Diameter of Reinforcing Bars Using Ground Penetrating Radar. IEEE Geoscience and Remote Sensing Letters, 18 (3). pp. 461-465. ISSN 1545-598X

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Official URL: https://doi.org/10.1109/LGRS.2020.2977505


Ground Penetrating Radar (GPR) is a well- established tool for detecting and locating reinforcing bars (rebars) in concrete structures. However, using GPR to quantify the diameter of rebars is a challenging problem that current processing approaches fail to tackle. To that extent, we have developed a novel machine learning framework that can estimate the diameter of the investigated rebar within the resolution range of the employed antenna. The suggested approach combines neural networks and a random forest regression, and has been trained entirely using synthetic data. Although the training process relied only on numerical training sets, nonetheless, the suggested scheme is successfully evaluated in real data indicating the generalization capabilities of the resulting regression. The only required input of the proposed technique is a single A-scan, avoiding laborious measurement configurations and multi-sensor approaches. Additionally, the results are provided in real-time making this method practical and commercially appealing.

Item Type: Article
Uncontrolled Keywords: Concrete, diameter, ground penetrating radar (GPR), machine learning (ML), nondestructive technique (NDT), nondestructive testing, random forest (RF), rebar, regression.
Subjects: G500 Information Systems
H300 Mechanical Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
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Depositing User: Elena Carlaw
Date Deposited: 05 Mar 2020 15:25
Last Modified: 31 Jul 2021 15:20
URI: http://nrl.northumbria.ac.uk/id/eprint/42378

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