<div class="csl-bib-body">
<div class="csl-entry">Csebfalvi, B., Tóth, B., Bruckner, S., & Gröller, E. (2012). Illumination-Driven Opacity Modulation for Expressive Volume Rendering. In M. Goesele, T. Grosch, H. Theisel, K. Toennis, & B. Preim (Eds.), <i>Workshop on Vision, Modeling, and Visualization Conference 2012 (VMV 2012)</i> (pp. 103–109). Proceedings of Vision, Modeling & Visualization 2012. https://doi.org/10.2312/PE/VMV/VMV12/103-109</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/54459
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dc.description.abstract
Using classical volume visualization, typically a couple of isosurface layers are rendered semi-transparently to show the internal structures contained in the data. However, the opacity transfer function is often difficult to specify such that all the isosurfaces are of high contrast and sufficiently perceivable. In this paper, we propose a volumerendering technique which ensures that the different layers contribute to fairly different regions of the image space. Since the overlapping between the effected regions is reduced, an outer translucent isosurface does not decrease significantly the contrast of a partially hidden inner isosurface. Therefore, the layers of the data become visually well separated. Traditional transfer functions assign color and opacity values to the voxels depending on the density and the gradient. In contrast, we assign also different illumination directions to different materials, and modulate the opacities view-dependently based on the surface normals and the directions of the light sources, which are fixed to the viewing angle. We will demonstrate that this model allows an expressive visualization of volumetric data.
en
dc.publisher
Proceedings of Vision, Modeling & Visualization 2012
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dc.subject
volume rendering
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dc.subject
illumination
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dc.subject
illustrative visualization
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dc.title
Illumination-Driven Opacity Modulation for Expressive Volume Rendering
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dc.type
Konferenzbeitrag
de
dc.type
Inproceedings
en
dc.relation.publication
Workshop on Vision, Modeling, and Visualization Conference 2012 (VMV 2012)
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dc.relation.isbn
978-3-905673-95-1
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dc.description.startpage
103
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dc.description.endpage
109
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dc.type.category
Full-Paper Contribution
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tuw.booktitle
Workshop on Vision, Modeling, and Visualization Conference 2012 (VMV 2012)
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tuw.peerreviewed
true
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tuw.relation.publisher
The Eurographics Association
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tuw.researchTopic.id
I5
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tuw.researchTopic.name
Visual Computing and Human-Centered Technology
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tuw.researchTopic.value
100
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tuw.publication.orgunit
E193-02 - Forschungsbereich Computer Graphics
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tuw.publisher.doi
10.2312/PE/VMV/VMV12/103-109
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dc.description.numberOfPages
7
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tuw.author.orcid
0000-0002-8569-4149
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tuw.event.name
Workshop on Vision, Modeling, and Visualization Conference (VMV 2012)
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tuw.event.startdate
12-11-2012
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tuw.event.enddate
14-11-2012
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Magdeburg, Germany
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tuw.event.country
EU
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tuw.event.presenter
Csebfalvi, Balazs
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wb.sciencebranch
Mathematik, Informatik
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wb.sciencebranch.oefos
11
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wb.facultyfocus
Visual Computing and Human-Centered Technology (VC + HCT)
de
wb.facultyfocus
Visual Computing and Human-Centered Technology (VC + HCT)
en
wb.facultyfocus.faculty
E180
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wb.presentation.type
science to science/art to art
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item.fulltext
no Fulltext
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item.cerifentitytype
Publications
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item.openairecristype
http://purl.org/coar/resource_type/c_5794
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item.openairetype
conference paper
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item.grantfulltext
restricted
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crisitem.author.dept
TU Wien
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crisitem.author.dept
E193-02 - Forschungsbereich Computer Graphics
-
crisitem.author.dept
E193-02 - Forschungsbereich Computer Graphics
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crisitem.author.orcid
0000-0002-8569-4149
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crisitem.author.parentorg
E193 - Institut für Visual Computing and Human-Centered Technology
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crisitem.author.parentorg
E193 - Institut für Visual Computing and Human-Centered Technology