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Open access Aug 2026

A Low-Altitude Data Space Framework Based on China’s National 3D Mapping Program

A comprehensive low-altitude three-dimensional data space framework grounded in China's National 3D Realistic Geospatial Landscape Model (3dRGLM) is proposed, establishing a spatiotemporally integrated digital environment supporting critical applications in low-altitude airspace planning, intelligent 3D navigation, and...

Yin Gao, Jun Chen, Dehu Yang et al. · 0 citations
Review Open access Aug 2026

Dual-Module Bench-Line Extraction and Surface-Object Segmentation from UAV LiDAR Point Clouds in Open-Pit Mines Using Neighborhood Geometric Analysis and an Enhanced PointNet++ Network

Open-pit mines contain rapidly changing terrain, discontinuous bench structures, and mixed artificial–natural objects, which complicate automated three-dimensional mapping. This study presents a dual-module workflow for UAV LiDAR point clouds. Module A characterizes local geometry using normal and curvature descriptors...

Shanfeng Ge, Ni-Jia Qian, Jing-Xiang Gao et al. · 0 citations

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