ACM Siggraph Asia, 2015, Proceedings

Depth-Aware Coherent Line Drawings

Marc Spicker1       Julian Kratt1       Diana Arellano2       Oliver Deussen1

1University of Konstanz, Germany
2Filmakademie Baden-Württemberg, Germany


In this paper we utilize depth information to extend a line drawing algorithm, improving depth perception and object differentiation in large and spatially complex scenes. We consider different scales of features and apply a flow-based morphological filter to the scenes. Based on this two line drawing styles are defined. The proposed algorithm works in real-time and enables users to manipulate the parameter space through instant visual feedback. We evaluated the effectiveness of our method by performing a user study.


For each image:
Top left input, top right result from Kang et al. 2007 - Coherent Line Drawing.
Bottom left: Ours style 1, bottom right: Ours, style 2.

Input images top right and bottom left copyright Jaime Vives Piqueres (jaime-at-ignorancia-dot-org).


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 author = {Spicker, Marc and Kratt, Julian and Arellano, Diana and Deussen, Oliver},
 title = {Depth-aware Coherent Line Drawings},
 booktitle = {SIGGRAPH Asia 2015 Technical Briefs},
 series = {SA '15},
 year = {2015},
 isbn = {978-1-4503-3930-8},
 location = {Kobe, Japan},
 pages = {1:1--1:5},
 articleno = {1},
 numpages = {5},
 url = {},
 doi = {10.1145/2820903.2820909},
 acmid = {2820909},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {2.5D technique, edge detection, flow-based filtering, line drawing, non-photorealistic rendering},