抄録
Currently, DEM (Digital Elevation Model) of high density and wide range has been able to be created by spread of airborne laser scanner data. Because the DEM has a large amount of data, real-time communication becomes impossible. In order to reduce the amount of data of the DEM, we propose a method to compress the DEM with joint singular value decomposition. The proposed method is a lossy compression, and assume that a terrain has similar relief. We prove the effectiveness of the proposed method through the experiments using the DEM of 5m mesh.
