TY - JOUR A1 - Oliveira, H. C. A1 - Galo, M. T1 - OCCLUSION DETECTION BY HEIGHT GRADIENT FOR TRUE ORTHOPHOTO GENERATION, USING LIDAR DATA JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XL-1/W1 SP - 275 EP - 280 Y1 - 2013/05/02 PB - Copernicus Publications SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XL-1-W1/275/2013/ L1 - https://isprs-archives.copernicus.org/articles/XL-1-W1/275/2013/isprsarchives-XL-1-W1-275-2013.pdf DO - 10.5194/isprsarchives-XL-1-W1-275-2013 ER -