Abstract
In recent years, plane type and ground type laser scanners have become to be widely used for constructing three-dimensional terrain data. However, when occlusion is occurred and lasers are not fully returned, lost of data happens and measurement noises contaminate terrain data. Terrain data are commonly represented with DEM (Digital Elevation Model) or TIN (Triangulated Irregular Network) . We propose, in this letter, an interpolation method for filling in lost DEM data. Through the experiments using sample data of lost DEM, we demonstrate the effectiveness of our interpolation method.
