TY - CONF T1 - Recognition of head gestures using hidden markov models T2 - Pattern Recognition, 1996., Proceedings of the 13th International Conference on Y1 - 1996 A1 - Morimoto,C. A1 - Yacoob,Yaser A1 - Davis, Larry S. JA - Pattern Recognition, 1996., Proceedings of the 13th International Conference on VL - 3 ER -