Line Integral Convolution for Real-Time Illustration of Molecular Surface Shape and Salient Regions

We present a novel line drawing algorithm that illustrates surfaces in real‐time to convey their shape. We use line integral convolution (LIC) and employ ambient occlusion for illustrative surface rendering. Furthermore, our method depicts salient regions based on the illumination gradient. Our meth...

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Veröffentlicht in:Computer graphics forum Jg. 33; H. 3; S. 181 - 190
Hauptverfasser: Lawonn, Kai, Krone, Michael, Ertl, Thomas, Preim, Bernhard
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Oxford Blackwell Publishing Ltd 01.06.2014
Schlagworte:
Algorithms
Analysis
Categories and Subject Descriptors (according to ACM CCS)
Channels
Computer graphics
Convolution
I.3.3 [Computer Graphics]: Picture/Image Generation-Line and curve generation
Illumination
Image processing systems
Integrals
Medical imaging
Molecular structure
Real time
Rendering
Studies
ISSN:0167-7055, 1467-8659
Online-Zugang:Volltext
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Beschreibung
Zusammenfassung:We present a novel line drawing algorithm that illustrates surfaces in real‐time to convey their shape. We use line integral convolution (LIC) and employ ambient occlusion for illustrative surface rendering. Furthermore, our method depicts salient regions based on the illumination gradient. Our method works on animated surfaces in a frame‐coherent manner. Therefore, it yields an illustrative representation of time‐dependent surfaces as no preprocessing step is needed. In this paper, the method is used to highlight the structure of molecular surfaces and to illustrate important surface features like cavities, channels, and pockets. The benefit of our method was evaluated with domain experts. We also demonstrate the applicability of our method to medical visualization.
Bibliographie:Supporting InformationSupporting Information
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ArticleID:CGF12374
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SourceType-Scholarly Journals-1
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ISSN:0167-7055
1467-8659
DOI:10.1111/cgf.12374