Research on 3D Surveying Method of Open-pit Mine Based on Digital Oblique Photogrammetry
Abstract：In order to improve the accuracy and efficiency of 3D surveying in open-pit mines, this study proposes a method based on digital oblique photogrammetry. The article introduces the general situation of a mining area and details the process of constructing point cloud data through UAV oblique photogrammetry, including terrain-following flight and aerial survey data acquisition. It analyzes the processing and denoising methods of point cloud data, as well as the extraction technology of open-pit mine bench lines based on the geometric characteristics of point cloud neighborhoods. On this basis, an improved point cloud slicing method based on Euclidean clustering is proposed for accurate calculation of open-pit mine stripping. The results of point cloud volume survey are verified. The results show that this method can efficiently obtain 3D information of open-pit mines, achieve high-precision surveying and calculation, provide technical support for mining and management of open-pit mines, and help improve the efficiency and safety of open-pit mining.
Keywords：DigitalOblique PhotogrammetryOpen-pit Mine3D Surveying
Publication Date：2025-05-25
Pages：3( 55-57 )