Hanli Zhao Xiaogang Jin Jianbing Shen Li Shen Ruifang Pan Fast Shape-Simplifying Image Abstraction Using Graphics Hardware. 390-398 2009 Edutainment http://dx.doi.org/10.1007/978-3-642-03364-3_47 conf/edutainment/2009 db/conf/edutainment/edutainment2009.html#ZhaoJSSP09