Fractal-Based Spacial Polyhedron Model Deformation Algorithm in Terrain Surface Interpolation
基于分形几何的空间多面体变形法 在三维地表插值中的应用

In constructing Digital Elevation Model (DEM) from image pairs, often the elevation data of point cannot be directly recoverd, due to the limitation of the mapping algorithm adopted and the mutual hiding of the terrain itself. Therefore it is very important to construct a dense terrain model from these sparse data by means of interpolation. In this paper, based on the fractal features of natural terrain, a Spacial Polyhedron Model Deformation algorithm is presented, which can generate realistic dense terrain model from sparse points that are irregularly distributed. The experimental results are satisfactory.