Liviu Coconu, Oliver Deussen, Hans-Christian Hege. Real-time pen-and-ink illustration of landscapes. In Douglas DeCarlo, Lee Markosian, editors, Proceedings of the 4th International Symposium on Non-Photorealistic Animation and Rendering 2006, Annecy, France, June 5-7, 2006. pages 27-35, ACM, 2006. [doi]
Abstract is missing.