Date of Award
Doctor of Philosophy (PhD)
Heggere S. Ranganath
Mary Ellen Weisskopf
Information visualization., Data compression (Computer science), Computer graphics., High performance computing.
This dissertation focuses on increasing isosurfacing speed through novel compression approaches. The compression occurs on a cell-by-cell basis during isosurface extraction, as opposed to compressing the mesh in a post-processing step. The compression is applied to isosurfacing on cluster computers, and it postpones scalability plateauing of prior parallel isosurfacers by reducing communication on cluster computers (versus the prior state of the art). A novel view-dependent isosurface mesh decompressor and improved isosurface orientation estimator for sparse datasets via quadratic splines fit to tetrahedral decompositions of the datasets are also described. Experimental results for all efforts, which quantify their effectiveness, are also presented.
Wood, Brian, "Improved isosurfacing through compression and sparse grid orientation estimation" (2021). Dissertations. 229.