Fine-Scale Assessment of Urban Canopy and Green-Cover Composition Across Functional–Morphological Scene Types Using UAV Orthophotos and SAM3
Coarse urban green-space assessments often merge tree canopy, low-lying vegetation, and impervious surfaces within large spatial units, failing to resolve fine-scale greening composition in heterogeneous built environments. To address this gap, we evaluated whether centimetre-scale unmanned aerial vehicle (UAV) imagery...