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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



... 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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