Use satellite images to get 3D structure of buildings and roofs
Use satellite images to get 3D structure of buildings and roofs
Automated LoD-2 Model Reconstruction from Very-HighResolution Satellite-derived Digital Surface Model and Orthophoto
arXiv paper abstract https://arxiv.org/abs/2109.03876
arXiv PDF paper https://arxiv.org/pdf/2109.03876.pdf
… reconstructs LoD-2 building models following a “decomposition-optimization-fitting” paradigm.
… starts … through a deep learning-based detector and vectorizes individual segments into polygons
… decomposes the complex and irregularly shaped building polygons to tightly combined elementary building rectangles
… introduced OpenStreetMap (OSM) and Graph-Cut (GC) labeling to further refine the orientation of 2D building rectangle.
… takes building-specific parameters such as hip lines … to optimize the flexibility for using a minimal set of elementary models.
Finally, roof type of building models s refined and adjacent building models in one building segment are merged
… resulting in practically high-quality results
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