Hossam E. Abd El Munim Aly A. Farag A Shape-Based Segmentation Approach: An Improved Technique Using Level Sets. 930-935 2005 conf/iccv/2005 ICCV http://doi.ieeecomputersociety.org/10.1109/ICCV.2005.19 db/conf/iccv/iccv2005-2.html#MunimF05