Research on High Steep Slope Survey Based on UAV Aerial Photogrammetry
Abstract：To improve the efficiency and accuracy of high steep slope survey, this paper introduces a project case based on UAV aerial photogrammetry, and deeply analyzes the design of the UAV system and its application methods in high steep slope survey. The content includes the engineering overview, the basic structure design of the multi-rotor UAV photogrammetry system, and the relationship between ground resolution and flight altitude. It discusses the coordinate system conversion technology in UAV surveying, efficient processing of high steep slope images, precise feature extraction of 3D coordinate points, and slope stability assessment based on joint density calculation. The results show that UAV aerial photogrammetry technology significantly improves the automation level and data accuracy of high steep slope survey, providing technical support for slope stability analysis and treatment plan design, while reducing costs and accelerating progress, which has important application value.
Keywords：UAVAerialPhotogrammetryHigh Steep Slope Survey
Publication Date：2025-05-25
Pages：3( 46-48 )