TY - JOUR T1 - Online updating appearance generative mixture model for meanshift tracking JF - Mach. Vision Appl. Y1 - 2009 A1 - Tu, Jilin A1 - Tao, H. A1 - Huang, T.S. PB - Springer-Verlag New York, Inc. CY - Secaucus, NJ, USA VL - 20 ER -