Bathymetric Terrain Model Simplification Based on Key Points
Aiming at the question that the visualization of low-resolution bathymetric terrain by regular grid neglected the key information of bathymetric terrain easily,a method based on key points to build bathymetric terrain model is presented in this paper.It is the method that the character points of water depth chosen as key points from high-resolution terrain model are used to render low-resolution bathymetric terrain model.The experimental results show that the method for rendering low-resolution bathymetric terrain shows more information than by regular grid terrain model.In order to show the intuitionist information of bathymetric bottom and water depth the paper used bathymetric texture and the result is very good.