Airborne Laser Scanning (ALS) Primary 3D Laser Scan Data

This ALS data is a classified 3D point cloud in the las1.4 format. The dot density is about 9.8 points/m². The following classes are included in the dataset: Ground (class 2), depth (class 3), middle (class 4) and high-vegetation (class 5), outliers (class low-points class 7) and default (class 0). All objects above the ground are basically located in the three above-mentioned vegetation classes. The blade cut is 1 km x 1 km. A buffer of about 250 m is enough to reach the state of Brandenburg.本数据集为采用LAS 1.4格式存储的分类机载激光雷达扫描（Airborne Laser Scanning，ALS）三维点云数据，点密度约为9.8点/平方米。数据集包含以下类别：地面点（类别2）、矮生植被（类别3）、中生植被（类别4）与高植被（类别5）、异常低点（类别7）以及默认类别（类别0）。所有地面以上的地物基本均属于上述三类植被类别。本次扫描测区幅面为1千米×1千米，设置约250米的缓冲区域即可覆盖至德国勃兰登堡州。