Unmanned aerial vehicle (UAV) photogrammetry offers a safe and efficient alternative to manual rock mass characterization in hazardous terrain. This study evaluates quality control measures, compares the discontinuity of accuracy data with and without Ground Control Points (GCPs), and performs kinematic a stability analysis of a sedimentary rock slope. Using a GPS-integrated drone and GNSS coordinates, a high-resolution 3D model was generated in Agisoft Metashape, and discontinuity orientations were extracted using CloudCompare. Results indicate that optimal UAV camera angles and an image overlap of 60%–80% are critical for achieving high model fidelity. Incorporating GCPs significantly improved accuracy; the mean percentage differences in dip direction decreased from 5.21%–22.01% (without GCPs) to 1.66%–10.06% (with GCPs). Comparative analysis with manual scanline surveys demonstrated strong agreement, successfully identifying stable conditions, as well as wedge and planar failures modes. These findings underscore the necessity of GCPs in UAV-based mapping for reliable kinematic rock slope assessment.
Abstract Landslides of mine dump slopes are recognized as high-consequence hazards in surface mining. They occur due to the rapid construction from heterogeneous waste materials, the continuous evolution of their geometry during dumping, and the strong influence of foundation conditions and hydromechanical triggers on...
Stephanos Tsachouridis, Francis Pavloudakis· Mining Revue· 0 citations
Unmanned aerial vehicles are a modern technology for collecting data for aerial surveying to produce high-resolution digital elevation models (DEMs). This accuracy is achieved using ground control points (GCPs), which are specific locations on the ground with known coordinates that help improve the precision of aerial...
Kamal M. Gamal, A. Elshrkawy, Osama M. Moussa et al.· IOP Conference Series: Earth...· 0 citations
High-resolution topographic data are crucial for accurately modeling hydraulic structures, particularly fish passes, where subtle geomorphic features govern flow heterogeneity and fish navigation. Conventional remote sensing approaches often lack the spatial resolution to resolve such microrelief. This study demonstrat...
A. Šoltész, Lea Čubanová, J. Rumann et al.· Applied Geomatics· 0 citations
The findings indicate that UAV photogrammetry combined with GIS provides a cost-effective and reliable approach for developing high-precision three-dimensional cadastral datasets that support modern land administration, urban planning, and digital city management.
Salar Mirzapour, Z. Azizi, H. Zavar et al.· Scientific Reports· 0 citations
Coastal areas are particularly suitable study sites for kite aerial photography (KAP) surveys because of consistent wind and open space. This study uses KAP surveys conducted in January, March, June, August, and October 2025, combined with Structure from Motion photogrammetry and spatially variable error modeling for D...
Julia Sarachik-Epstein, Jerry D. Davis, A. Oliphant· Remote Sensing· 0 citations
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