6Mumford D. Shah J. Optimal approximation by piecewise smooth functions and associated variational problems[ J]. Communication on Pure and Applied. Math matics,1989,42(9) :577-685.
7Chan T,Vese L. Active contour without edges[ J]. IEEE Transactions on Image Processing, 2001,10 ( 2 ) : 266 - 277.
8Chan T, Vese L. Active contours without edges for vector- valued Images [ J ]. Journal of Visual Communication and Image Representation,2001,11(2). 130-141.
9Choi H, Bindschadler R. Cloud detection in Landsat imagery of ice sheetsusing shadow matching technique and automatic normalized differencesnow index threshold value decision[J]. Remote Sensing of Environment,2004,91(2).: 237-242.
