Adaptive Cube Tessellation for Topologically Correct Isosurfaces

Journal of virtual reality and broadcasting

Juan Carlos Torres¹  Alejandro Léon¹  Francisco Soler¹  Francisco Velasco¹ 

[1] University of Granada$$

关键词: Isosurfaces;    Marching Cubes;    Marching Tetrahedra;    Volume Visualization;   

DOI  :  10.20385/1860-2037/5.2008.3

学科分类：计算机科学（综合）

来源: Di P P - N R W

【 摘 要 】

Three dimensional datasets representing scalar fields are frequently rendered using isosurfaces. For datasets arranged as a cubic lattice, the marching cubes algorithm is the most used isosurface extraction method. However, the marching cubes algorithm produces some ambiguities which have been solved using different approaches that normally imply a more complex process. One of them is to tessellate the cubes into tetrahedra, and by using a similar method (marching tetrahedra), to build the isosurface. The main drawback of other tessellations is that they do not produce the same isosurface topologies as those generated by improved marching cubes algorithms. We propose an adaptive tessellation that, being independent of the isovalue, preserves the topology. Moreover the tessellationallows the isosurface to evolve continuously when the isovalue is changed continuously.

【 授权许可】

Unknown