关键词: 体视化, 结构关系, 拓扑, 映射, 描述

Abstract: Different structural relationships exist between various objects in a volume data set such as inclusion and topology. These structural relationships also affect understanding the features of the data set. Through analyzing the relationships between objects, this paper proposed that an effective volume rendering should define a mapping from data to rendering so that each relationship between objects in the data space was mapped to the rendering space. Then different rendering methods were presented to depict typical structural relationships in the data set. The depiction of various structural relationships between objects in rendering space enhances the understanding of the data set, and extends roles of volume rendering in volume data analysis.

Key words: volume rendering, structural relationship, topology, mapping, depiction