Simplicial Isosurface Compression
Thomas Lewiner, Luiz Carlos Pacheco Rodrigues Velho, Hélio Lopes, Vinícius M. Mello · 2004
Abstract. In this work, we introduce a new algorithm for direct and progressive encoding of isosurfaces extracted from volumetric data. A binary multi–triangulation is used to represent and adapt the 3D scalar grid. This simplicial scheme provides geometrical and topological control on the decoded isosurface. The resulting algorithm is an efficient and flexible isosurface compression scheme. Keywords: Isosurfaces. Data Compression. Simplicial Methods. Progressive Transmission. Figure 1: Decompression of the Horse model as a 257 3 regular sampled data. The first images corresponds to the binary multi– triangulation refinement, followed by the geometric refinements. 1