Niemeyer, Joachim; Rottensteiner, Franz; Sörgel, Uwe; Heipke, Christian
(Göttingen : Copernicus GmbH, 2016)
We propose a novel hierarchical approach for the classification of airborne 3D lidar points. Spatial and semantic context is incorporated via a two-layer Conditional Random Field (CRF). The first layer operates on a point ...