Ambient Occlusion Effects for Combined Volumes and Tubular Geometry

Handle URI:
http://hdl.handle.net/10754/597495
Title:
Ambient Occlusion Effects for Combined Volumes and Tubular Geometry
Authors:
Schott, M.; Martin, T.; Grosset, A. V. P.; Smith, S. T.; Hansen, C. D.
Abstract:
This paper details a method for interactive direct volume rendering that computes ambient occlusion effects for visualizations that combine both volumetric and geometric primitives, specifically tube-shaped geometric objects representing streamlines, magnetic field lines or DTI fiber tracts. The algorithm extends the recently presented the directional occlusion shading model to allow the rendering of those geometric shapes in combination with a context providing 3D volume, considering mutual occlusion between structures represented by a volume or geometry. Stream tube geometries are computed using an effective spline-based interpolation and approximation scheme that avoids self-intersection and maintains coherent orientation of the stream tube segments to avoid surface deforming twists. Furthermore, strategies to reduce the geometric and specular aliasing of the stream tubes are discussed.
Citation:
Schott M, Martin T, Grosset AVP, Smith ST, Hansen CD (2013) Ambient Occlusion Effects for Combined Volumes and Tubular Geometry. IEEE Transactions on Visualization and Computer Graphics 19: 913–926. Available: http://dx.doi.org/10.1109/TVCG.2012.306.
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Transactions on Visualization and Computer Graphics
Issue Date:
Jun-2013
DOI:
10.1109/TVCG.2012.306
PubMed ID:
23559506
PubMed Central ID:
PMC3987773
Type:
Article
ISSN:
1077-2626
Sponsors:
This research was sponsored by the National Nuclear Security Administration under the Advanced Simulation and Computing program through US Department of Energy (DOE) Cooperative Agreement #DE-NA0000740, and by Award No. KUS-C1-016-04, made by King Abdullah University of Science and Technology (KAUST), and DOE SciDAC-2:SDAV, US National Science Foundation (NSF) OCI-0906379.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorSchott, M.en
dc.contributor.authorMartin, T.en
dc.contributor.authorGrosset, A. V. P.en
dc.contributor.authorSmith, S. T.en
dc.contributor.authorHansen, C. D.en
dc.date.accessioned2016-02-25T12:40:51Zen
dc.date.available2016-02-25T12:40:51Zen
dc.date.issued2013-06en
dc.identifier.citationSchott M, Martin T, Grosset AVP, Smith ST, Hansen CD (2013) Ambient Occlusion Effects for Combined Volumes and Tubular Geometry. IEEE Transactions on Visualization and Computer Graphics 19: 913–926. Available: http://dx.doi.org/10.1109/TVCG.2012.306.en
dc.identifier.issn1077-2626en
dc.identifier.pmid23559506en
dc.identifier.doi10.1109/TVCG.2012.306en
dc.identifier.urihttp://hdl.handle.net/10754/597495en
dc.description.abstractThis paper details a method for interactive direct volume rendering that computes ambient occlusion effects for visualizations that combine both volumetric and geometric primitives, specifically tube-shaped geometric objects representing streamlines, magnetic field lines or DTI fiber tracts. The algorithm extends the recently presented the directional occlusion shading model to allow the rendering of those geometric shapes in combination with a context providing 3D volume, considering mutual occlusion between structures represented by a volume or geometry. Stream tube geometries are computed using an effective spline-based interpolation and approximation scheme that avoids self-intersection and maintains coherent orientation of the stream tube segments to avoid surface deforming twists. Furthermore, strategies to reduce the geometric and specular aliasing of the stream tubes are discussed.en
dc.description.sponsorshipThis research was sponsored by the National Nuclear Security Administration under the Advanced Simulation and Computing program through US Department of Energy (DOE) Cooperative Agreement #DE-NA0000740, and by Award No. KUS-C1-016-04, made by King Abdullah University of Science and Technology (KAUST), and DOE SciDAC-2:SDAV, US National Science Foundation (NSF) OCI-0906379.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectambient occlusionen
dc.subjectstream tubesen
dc.subjectVolume renderingen
dc.titleAmbient Occlusion Effects for Combined Volumes and Tubular Geometryen
dc.typeArticleen
dc.identifier.journalIEEE Transactions on Visualization and Computer Graphicsen
dc.identifier.pmcidPMC3987773en
dc.contributor.institutionNVIDIA corporation, 2701 San Tomas Expressway, Santa Clara, CA 95050, USA. mschott@nvidia.comen

Related articles on PubMed

All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.