2004 Volume 48 Pages 727-732
3D laser scanner used on this study can not measure the landform under the water. However, the absence of data shows existence of the water in the other. It is important for the elucidation of the deformation mechanism of the riverbed to grasp the landform of the riverbed in detail. In this study, we tried to discriminate the water route from the measured data by using the trimming algorism and reflectivity. The shoal and water route was elucidated by an analysis of the trimming algorism and reflectivity. Some important characteristics of the waters area in measurement data of the landform of the riverbed by the 3D laser scanner were showed
