@Article{freedman:tip04, author = {D.\ Freedman and T.\ Zhang}, title = {Active Contours for Tracking Distributions}, journal = {Image Processing, IEEE Transactions on}, volume = 13, number = 4, pages = {518-526}, year = 2004, month = {April}, keywords = {active contours, tracking, bhattacharyya measure, Kullback-Leibler, level set method, partial differential equations}, annote = {}, abstract = {}, url = {} }