UrbanMapper 3D (Digital Surface Model and Digital Terrain Model) Dataset

Competitors will receive an orthorectified color image, Digital Surface Model (DSM), and Digital Terrain Model (DTM) for each geographic area of interest (AOI). The DSM indicates the height of the earth, with objects such as buildings and trees included. The DTM indicates only the height of the ground. Both should be expected to include some errors, and errors may be expected to be similar in the provisional and sequestered data sets. The difference in the DSM and DTM indicates height of objects above ground. All input files provided are raster GeoTIFF images. Ground truth building labels will also be provided for a subset of the data to be used for training ![]() ![]()

参赛者将收到针对每个感兴趣地理区域（AOI）的正射校正彩色图像、数字表面模型（DSM）和数字地形模型（DTM）。DSM反映了地球的高度，其中包含建筑物和树木等物体。DTM仅指示地面的高度。两者均可能包含一定的误差，且误差在预备数据和封存数据集中可能相似。DSM与DTM之间的差异表示地面以上物体的高度。所有提供的输入文件均为栅格GeoTIFF图像。此外，还将为数据集的子集提供地面真实建筑物标签，以便用于训练。