Pan Lin Chongxun Zheng Yong Yang Jian-Wen Gu Statistical Model Based on Level Set Method for Image Segmentation. 143-148 2004 conf/IEEEcit/2004 CIT http://csdl.computer.org/comp/proceedings/cit/2004/2216/00/22160143abs.htm db/conf/IEEEcit/IEEEcit2004.html#LinZYG04