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).
@inproceedings{Spicker2015DepthawareCoherent, acmid = {2820909}, address = {New York, NY, USA}, articleno = {1}, author = {M. Spicker, J. Kratt, D. Arellano, 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}, url = {http://graphics.uni-konstanz.de/publikationen/Spicker2015DepthawareCoherent}, year = {2015} }