Line Integral Convolution for Real‐Time Illustration of Molecular Surface Shape and Salient Regions. (12th July 2014)

• Record Type: Journal Article
• Authors: Lawonn, Kai; Krone, Michael; Ertl, Thomas; Preim, Bernhard
• Is Part Of: Computer graphics forum. Volume 33:Number 3(2014)
• Page Start: 181
• Page End: 190
• Publication Date: 2014-07-12
• Subjects: Categories and Subject Descriptors (according to ACM CCS): -- I.3.3 [Computer Graphics]: Picture/Image Generation—Line and curve generation; Computer graphics -- Periodicals; 006.605
• DOI: 10.1111/cgf.12374
• Languages: English
• ISSNs: 0167-7055

Abstract

Abstract: 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.