Dongxiang Xu Jenq-Neng Hwang Chun Yuan Segmentation of Multi-Channel Image with Markov Random Field Based Active Contour Model. 45-55 2002 31 VLSI Signal Processing 1 http://dx.doi.org/10.1023/A:1014493104976 db/journals/vlsisp/vlsisp31.html#XuHY02