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Semantic Layers for Illustrative Volume Rendering

Peter Rautek, Stefan Bruckner, M. Eduard Gröller

JOURNAL ARTICLE: IEEE Transactions on Visualization and Computer Graphics, vol. 13, no. 6, pp. 1336–1343, 2007. DOI: 10.1109/TVCG.2007.70591

Abstract

Direct volume rendering techniques map volumetric attributes (e.g., density, gradient magnitude, etc.) to visual styles. Commonly this mapping is specified by a transfer function. The specification of transfer functions is a complex task and requires expert knowledge about the underlying rendering technique. In the case of multiple volumetric attributes and multiple visual styles the specification of the multi-dimensional transfer function becomes more challenging and non-intuitive. We present a novel methodology for the specification of a mapping from several volumetric attributes to multiple illustrative visual styles. We introduce semantic layers that allow a domain expert to specify the mapping in the natural language of the domain. A semantic layer defines the mapping of volumetric attributes to one visual style. Volumetric attributes and visual styles are represented as fuzzy sets. The mapping is specified by rules that are evaluated with fuzzy logic arithmetics. The user specifies the fuzzy sets and the rules without special knowledge about the underlying rendering technique. Semantic layers allow for a linguistic specification of the mapping from attributes to visual styles replacing the traditional transfer function specification.

Published

IEEE Transactions on Visualization and Computer Graphics

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BibTeX

@ARTICLE{Rautek-2007-SLI,
  author = {Peter Rautek and Stefan Bruckner and M. Eduard Gr{\"o}ller},
  title = {Semantic Layers for Illustrative Volume Rendering},
  journal = {IEEE Transactions on Visualization and Computer Graphics},
  year = {2007},
  volume = {13},
  pages = {1336--1343},
  number = {6},
  month = oct,
  abstract = {Direct volume rendering techniques map volumetric attributes (e.g.,
	density, gradient magnitude, etc.) to visual styles. Commonly this
	mapping is specified by a transfer function. The specification of
	transfer functions is a complex task and requires expert knowledge
	about the underlying rendering technique. In the case of multiple
	volumetric attributes and multiple visual styles the specification
	of the multi-dimensional transfer function becomes more challenging
	and non-intuitive. We present a novel methodology for the specification
	of a mapping from several volumetric attributes to multiple illustrative
	visual styles. We introduce semantic layers that allow a domain expert
	to specify the mapping in the natural language of the domain. A semantic
	layer defines the mapping of volumetric attributes to one visual
	style. Volumetric attributes and visual styles are represented as
	fuzzy sets. The mapping is specified by rules that are evaluated
	with fuzzy logic arithmetics. The user specifies the fuzzy sets and
	the rules without special knowledge about the underlying rendering
	technique. Semantic layers allow for a linguistic specification of
	the mapping from attributes to visual styles replacing the traditional
	transfer function specification.},
  doi = {10.1109/TVCG.2007.70591},
  event = {IEEE Visualization 2007},
  keywords = {focus+context techniques, volume visualization, illustrative visualization},
  location = {Sacramento, California, USA},
  url = {http://www.cg.tuwien.ac.at/research/publications/2007/Rautek-2007-SLI/}
}






 Last Modified: Stefan Bruckner, 2014-09-22