Airborne lidar is when a laser scanner, while attached to an aircraft during flight, creates a 3-D point cloud model of the landscape. This is currently the most detailed and accurate method of creating DEM and DSM, replacing photogrammetry technology.

Over the past two decades, LiDAR data have been widely used for classification and Mapping services.

LiDAR point cloud classification of airborne LiDAR data, multi-class labeling has become familiar for city modeling, land change detection, map updating, vegetation management and etc.