タケシマ　ユリコ   竹島　由里子    所属   メディア学部 メディア学科    職種   教授
言語種別	英語
発行・発表の年月	2005/01
形態種別	国際会議論文
査読	査読あり
標題	Interval Volume Decomposer: A Topological Approach to Volume Traversal
執筆形態	共著
掲載誌名	Proc. Visualization and Data Analysis 2005
掲載区分	国外
出版社・発行元	SPIE
巻・号・頁	pp.103-114
著者・共著者	Shigeo Takahashi, Issei Fujishiro, Yruiko Takeshima
概要	The Interval Volume Decomposer (IVD) is an interface for decomposing an entire volume into interval volumes each of which characterizes a distinctive volume feature. The advantage of the IVD is that it allows us to look inside the volume by peeling interval volumes from outside to inside not only interactively but also automatically. This is achieved due to the rigorous analysis of nested structures of the decomposed interval volumes by constructing a level-set graph that delineates isosurface transitions according to the scalar field. A robust algorithm for computing such level-set graphs is introduced in order to extract significant structures in the volume by putting together local interval volumes into a finite number of global groups. Several decomposition examples of medical and simulated datasets are demonstrated so that the present interface effectively traverses the underlying structures of the volume.