Tel-Aviv University - Computer Science Colloquium
Sunday, December 13, 14:15-15:15
at 14:00 Exploratory scientific visualization is a valuable paradigm for understanding complex physical phenomena. When these phenomena have associated volumetric (3D) scalar fields, isosurface extraction is a critical tool. An isosurface is the set of points where the scalar field has a particular value, the "isovalue." The position of an isosurface, as well as its relation to other neighboring isosurfaces, can yield clues to the underlying structure of the scalar field. The ability to interactively change the isovalue provides insight into structure and underlying physical meaning of the scalar field. This talk will focus on the work being done at Utah for rapid isosurface extraction algorithms that enable exploration of large datasets for both local and remote visualization. Two classes of algorithms are described in detail: fast isosurface search technique (NOISE) and view dependent techniques applicable to remote visualization (WISE/SAGE). These algorithms provide fast localization of an isosurface within very large datasets, as well as giving scientists prompt feedback during exploratory sessions.
For colloquium schedule, see http://www.math.tau.ac.il/~matias/colloq.html