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UAV Imagery-based Automatic Classification of Ground Surface Types for Earthworks

  • Construction Management
  • Published:
KSCE Journal of Civil Engineering Aims and scope

Abstract

The construction industry is introducing autonomous heavy equipment to overcome labor shortages and improve productivity. For autonomous heavy equipment to work on earthmoving at sites, the equipment needs to recognize and understand ground surface types. However, the ground surface types are manually inspected in practice, and related studies are lacking. To address this issue, the authors developed and tested models that automatically classify ground surface types from images acquired by an unmanned aerial vehicle using a deep learning-based multi-label classification method that applies Binary Relevance (BR) and Label Powerset (LP) methods with Residual Neural Network (ResNet) and Vision Transformer classification network (VIT). The model performances were comparatively evaluated through experiments conducted on actual construction sites. The results showed that the BR model with ResNet is the best model in terms of automated ground surface type identification during earthmoving. The results are expected to broaden the understanding of complex and expansive construction sites for autonomous vehicles and thus facilitate deployment of autonomous heavy equipment by helping them to understand working areas and any obstacles on construction sites quickly and effectively, which will reduce the cost and time needed for on-site ground surface management.

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Acknowledgments

This work was supported by the National R&D Project for Smart Construction Technology (23SMIP-A158708-04) funded by the Korea Agency of Infrastructure Technology Advancement under the Ministry of Land, Infrastructure, and Transport. This work was also supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. RS-2023-00241758).

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Correspondence to Seokho Chi.

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Won, D., Chi, S. & Choi, J.O. UAV Imagery-based Automatic Classification of Ground Surface Types for Earthworks. KSCE J Civ Eng (2024). https://doi.org/10.1007/s12205-024-1643-x

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  • DOI: https://doi.org/10.1007/s12205-024-1643-x

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