TY - JOUR A1 - Niemeyer, J. A1 - Rottensteiner, F. A1 - Soergel, U. A1 - Heipke, C. T1 - CONTEXTUAL CLASSIFICATION OF POINT CLOUDS USING A TWO-STAGE CRF JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XL-3/W2 SP - 141 EP - 148 Y1 - 2015/03/10 PB - Copernicus Publications SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XL-3-W2/141/2015/ L1 - https://isprs-archives.copernicus.org/articles/XL-3-W2/141/2015/isprsarchives-XL-3-W2-141-2015.pdf DO - 10.5194/isprsarchives-XL-3-W2-141-2015 ER -