LPGF fuses Sentinel-2 imagery, UAV telemetry, vehicle GPS, and OSM data into building height priors via a three-tier hierarchy and optional quality-gated shadow estimation, reporting MAE of 3.07 m on Milan validation.
Building height esti- mation using shadow length in satellite imagery,
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Location Prior Generation via Multi-Source Urban Data Fusion for Low-Altitude Air Mobility
LPGF fuses Sentinel-2 imagery, UAV telemetry, vehicle GPS, and OSM data into building height priors via a three-tier hierarchy and optional quality-gated shadow estimation, reporting MAE of 3.07 m on Milan validation.