Hyung-Soo Lee Daijin Kim 0001 Sang-Youn Lee Robust Face-Tracking Using Skin Color and Facial Shape. 302-309 https://doi.org/10.1007/3-540-44887-X_36 2003 conf/avbpa/2003 AVBPA db/conf/avbpa/avbpa2003.html#LeeKL03