A multiresolution data decompositionoffers a fundamentalframework supporting compression, progressive transmission, and level-of-detail (LOD) control for large two or three dimensional data sets discretized on complex meshes. In this paper we extend a previously presented algorithm for 3D mesh reduction for volume data based on multilevel finite element approximations in two ways. First, we present efficient data structures which allow to incrementally construct approximations of the volume data at lower or higher resolutions at interactive rates. An
['Roberto Grosso', 'Thomas Ertl']
Progressive Iso-Surface Extraction from Hierarchical 3D Meshes