Tianqing Li Yi Zhang Danya Yao Dongcheng Hu FFT Snake: A Robust and Efficient Method for the Segmentation of Arbitrarily Shaped Objects in Image Sequences. 116-119 2004 ICPR (2) http://csdl.computer.org/comp/proceedings/icpr/2004/2128/02/212820116abs.htm db/conf/icpr/icpr2004-2.html#LiZYH04