METHOD AND SYSTEM FOR ADAPTIVE REFINEMENT OF PROGRESSIVE MESHES

摘要

A general method and system for adaptively refining an arbitrary progressive mesh representation for a graphical geometric model is presented. A real-time method for adaptively refining and coarsening the mesh according to a set of selective refinement criteria method is presented. The adaptive refinement method uses a constrained set of mesh transformations, and a set of selective refinement criteria to approximate a graphical object. The adaptive refinement method can be used to exploit view coherence, and can be used with non-view dependent parameters. For continuous changes in the parameters used in the set of selective refinement criteria, the adaptive refinement method can be amortized over consecutive frames, and smooth visual transitions (geomorphs) can be constructed between any two adaptively refined meshes used to represent a graphical object or image.