Tensor splats

Werner Benger, Hans-Christian Hege, Robert F. Erbacher, Philip C. Chen, Jonathan C. Roberts, Matti T. Gr÷hn, Katy B÷rner
2004 Visualization and Data Analysis 2004  
A new general-purpose technique for the visualization of time-dependent symmetric positive definite tensor fields of rank two is described. It is based on a splatting technique that is built from tiny transparent glyph primitives which are capable of incorporating the full orientational information content of a tensor. The result is an information-rich image that allows to read off the preferred orientations in a tensor field. It is useful for analyzing slices or volumes of a three-dimensional
more » ... ensor field and can be overlaid with standard volume rendering or color mapping. The application of the rendering technique is demonstrated on numerically simulated general relativistic data and a measured diffusion tensor field of a human brain. A problem common to all visualization techniques using icons is visual clutter, an experience which is tackled in vector field visualization by displaying low dimensional field characteristics like critical points and integral lines, e.g. stream lines, streak lines and path lines. Hyperstream lines 4 are stream lines of the maximum (or minimum) eigenvector "field" and is made available as an electronic reprint with permission of SPIE and IS&T. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. ] J J J J J J J J Ĵ
doi:10.1117/12.549300 dblp:conf/vda/BengerH04 fatcat:fzhxwjdhzvacdbrlk2nqk7q37a