@ARTICLE {Rautek-2008-ISI,
author = "Peter Rautek and Stefan Bruckner and Meister Eduard Gr{\"o}ller",
title = "Interaction-Dependent Semantics for Illustrative Volume Rendering",
journal = "Computer Graphics Forum",
year = "2008",
volume = "27",
number = "3",
pages = "847--854",
month = "may",
abstract = "In traditional illustration the choice of appropriate styles and rendering  techniques is guided by the intention of the artist. For illustrative  volume visualizations it is difficult to specify the mapping between  the 3D data and the visual representation that preserves the intention  of the user. The semantic layers concept establishes this mapping  with a linguistic formulation of rules that directly map data features  to rendering styles. With semantic layers fuzzy logic is used to  evaluate the user defined illustration rules in a preprocessing step.  In this paper we introduce interaction-dependent rules that are evaluated  for each frame and are therefore computationally more expensive.  Enabling interaction-dependent rules, however, allows the use of  a new class of semantics, resulting in more expressive interactive  illustrations. We show that the evaluation of the fuzzy logic can  be done on the graphics hardware enabling the efficient use of interaction-dependent  semantics. Further we introduce the flat rendering mode and discuss  how different rendering parameters are influenced by the rule base.  Our approach provides high quality illustrative volume renderings  at interactive frame rates, guided by the specification of illustration  rules.",
pdf = "pdfs/Rautek-2008-ISI.pdf",
images = "images/Rautek-2008-ISI.jpg",
thumbnails = "images/Rautek-2008-ISI.png",
youtube = "https://www.youtube.com/watch?v=fHIl2A50Ico",
affiliation = "tuwien",
doi = "10.1111/j.1467-8659.2008.01216.x",
event = "Eurographics/ IEEE-VGTC Symposium on Visualization",
keywords = "volume visualization, illustrative visualization, semantics, interaction",
location = "Eindhoven, The Netherlands",
url = "//www.cg.tuwien.ac.at/research/publications/2008/Rautek-2008-IDS/"
}