Skip to ContentSkip to Navigation
About us Latest news News News articles

Visualization of dense line data

09 December 2011

PhD ceremony: Mr. M.H. Everts, 12.45 uur, Aula Academiegebouw, Broerstraat 5, Groningen

Dissertation: Visualization of dense line data

Promotor(s): prof. J.B.T.M. Roerdink

Facultey: Mathematics and Natural Sciences

This thesis addresses the visualization of dense lines. Such collections of dense lines present themselves in various domains, two of which we describe in this thesis. The first domain is medical science where dense lines in the form of DTI fiber tracts are used to provide insight into the structure of the white matter of the brain. The other domain is numerical mathematics, where streamlines are used to provide information about the structure and behavior of fluids and gases in flow simulations. Naïvely visualizing such collections of dense lines typically results in a cluttered, uninformative view. To address this problem, this thesis provides four contributions for the visualization of dense lines.

The first is a fast new method for extracting fiber tracts from DTI data. The main idea is to convert the underlying data to a large graph and to apply Dijkstra's shortest path algorithm to that graph. In the next chapter we introduce a new visualization method for dense lines that is based on traditional illustrative techniques. The resulting visualizations resemble hand-drawn black-and-white illustrations. In the chapter that follows we describe a method for creating abstract representations of dense lines that can help in understanding the global structure. In the last chapter we introduce a flexible line style model for visualizing streamlines.

Last modified:13 March 2020 01.11 a.m.
printView this page in: Nederlands

More news

  • 10 July 2020

    ENLIGHT recognized as a European University

    The ENLIGHT consortium of nine European universities, including the University of Groningen, was selected within the framework of the second call for ‘European Universities’, the European Commission's pilot program for new multilateral networks....

  • 08 July 2020

    Piekopvang in Groningen voorbereid voor internationale studenten

    Aan het einde van de zomer komen er naast veel Nederlandse studenten ook internationale studenten naar Groningen om voor kortere of langere tijd te studeren aan de Hanzehogeschool Groningen (HG) of de Rijksuniversiteit Groningen (RUG). Vanwege de...

  • 08 July 2020

    Nano-Crystal Schroedinger Cats for Detecting Gravitational Waves

    Anupam Mazumdar en Steven Hoekstra and foreign colleagues present new work suggesting that a compact nano-crystal interferometer could be used as an incredibly sensitive gravitational detector called MIMAC.