產品規格

DEM Digital Elevation Model

DEM digital elevation model is a 3D representation of the terrain elevations found on surface of the earth. DEMs are generated from variably-spaced Lidar ground points, or they can be created using a raster grid.

Feiyan Technology focus on creation of high quality DEM Digital Elevation Model to support specialized applications such as 3D modeling, volumetric calculations, and powerline as-built surveys. 

Specifications of DEM Digital Elevation Model

Resolution: ≥3 points/m²

Project area: 39,090 km²

Duration: 1 month

Output: DEM, DSM,classified point clouds

Application: forestry planning

Accuracy: ≥98%

Grid spacing: 2m

From: Guangxi Forestry Bureau