Learning and Detecting Activities from Movement Trajectories Using the Hierarchical Hidden Markov Models.

Nam Thanh Nguyen Dinh Q. Phung Svetha Venkatesh Hung Hai Bui Learning and Detecting Activities from Movement Trajectories Using the Hierarchical Hidden Markov Models. 955-960 2005 conf/cvpr/2005 CVPR (2) http://dx.doi.org/10.1109/CVPR.2005.203 db/conf/cvpr/cvpr2005-2.html#NguyenPVB05