Hybrid visualization for white matter tracts using triangle strips and point sprites

Merhof, Dorit; Sonntag, Markus; Enders, Frank; Nimsky, Christopher; Hastreiter, Peter; Greiner, Günther

Hybrid visualization for white matter tracts using triangle strips and point sprites

Dateien

Hybrid_Visualization_2006.pdf(17.35 MB)

Datum

2006

Autor:innen

Merhof, Dorit

Sonntag, Markus

Enders, Frank

Nimsky, Christopher

Hastreiter, Peter

Greiner, Günther

Publikationstyp

Zeitschriftenartikel

Erschienen in

IEEE Transactions on Visualization and Computer Graphics ; 12 (2006), 5. - S. 1181-1188

Zusammenfassung

Diffusion tensor imaging is of high value in neurosurgery, providing information about the location of white matter tracts in the human brain. For their reconstruction, streamline techniques commonly referred to as fiber tracking model the underlying fiber structures and have therefore gained interest. To meet the requirements of surgical planning and to overcome the visual limitations of line representations, a new real-time visualization approach of high visual quality is introduced. For this purpose, textured triangle strips and point sprites are combined in a hybrid strategy employing GPU programming. The triangle strips follow the fiber streamlines and are textured to obtain a tube-like appearance. A vertex program is used to orient the triangle strips towards the camera. In order to avoid triangle flipping in case of fiber segments where the viewing and segment direction are parallel, a correct visual representation is achieved in these areas by chains of point sprites. As a result, a high quality visualization similar to tubes is provided allowing for interactive multimodal inspection. Overall, the presented approach is faster than existing techniques of similar visualization quality and at the same time allows for real-time rendering of dense bundles encompassing a high number of fibers, which is of high importance for diagnosis and surgical planning.

Fachgebiet (DDC)

004 Informatik

Schlagwörter

Diffusion tensor data,fiber tracking,streamline visualization

Zitieren

ISO 690

MERHOF, Dorit, Markus SONNTAG, Frank ENDERS, Christopher NIMSKY, Peter HASTREITER, Günther GREINER, 2006. Hybrid visualization for white matter tracts using triangle strips and point sprites. In: IEEE Transactions on Visualization and Computer Graphics. 12(5), pp. 1181-1188. Available under: doi: 10.1109/TVCG.2006.151

BibTex

@article{Merhof2006Hybri-5851,
  year={2006},
  doi={10.1109/TVCG.2006.151},
  title={Hybrid visualization for white matter tracts using triangle strips and point sprites},
  number={5},
  volume={12},
  journal={IEEE Transactions on Visualization and Computer Graphics},
  pages={1181--1188},
  author={Merhof, Dorit and Sonntag, Markus and Enders, Frank and Nimsky, Christopher and Hastreiter, Peter and Greiner, Günther}
}

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Universitätsbibliographie

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