Visual Computing

University of Konstanz
SIGGRAPH Asia 2015 Technical Briefs

Depth-aware Coherent Line Drawings

M. Spicker, J. Kratt, D. Arellano, O. Deussen
Teaser of Depth-aware Coherent Line Drawings


Paper (.pdf, 6.6 MB)


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).


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