Visualizing Uncertainty in HARDI Tractography Using Superquadric Streamtubes
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Date
2014
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
Standard streamtubes for the visualization of diffusion MRI data are rendered either with a circular or with anelliptic cross section whose aspect ratio indicates the relative magnitudes of the medium and minor eigenvalues.Inspired by superquadric tensor glyphs, we propose to render streamtubes with a superquadric cross section,which develops sharp edges to more clearly convey the orientation of the second and third eigenvectors where theyare uniquely defined, while maintaining a circular shape when the smaller two eigenvalues are equal. As a secondcontribution, we apply our novel superquadric streamtubes to visualize uncertainty in the tracking direction ofHARDI tractography, which we represent using a novel propagation uncertainty tensor
Description
@inproceedings{:10.2312/eurovisshort.20141154,
booktitle = {EuroVis - Short Papers},
editor = {N. Elmqvist and M. Hlawitschka and J. Kennedy},
title = {{Visualizing Uncertainty in HARDI Tractography Using Superquadric Streamtubes}},
author = {Wiens, Vitalis and Schlaffke, Lara and Schmidt-Wilcke, Tobias and Schultz, Thomas},
year = {2014},
publisher = {The Eurographics Association},
ISBN = {978-3-905674-69-9},
DOI = {/10.2312/eurovisshort.20141154}
}