LDPoly jointly generates road masks and vertex heatmaps with a dual-latent diffusion model, then polygonizes them into compact road outlines that beat prior methods on Dutch topographic benchmark Map2ImLas.
Oude Elberink, Acquisition of 3d topgraphy: automated 3d road and building reconstruction using airborne laser scanner data and topo- graphic maps (2010)
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LDPoly: Latent Diffusion for Polygonal Road Outline Extraction in Large-Scale Topographic Mapping
LDPoly jointly generates road masks and vertex heatmaps with a dual-latent diffusion model, then polygonizes them into compact road outlines that beat prior methods on Dutch topographic benchmark Map2ImLas.