Classifying spatiotemporal object trajectories using unsupervised learning in the coefficient feature space.

Andrew Naftel Shehzad Khalid Classifying spatiotemporal object trajectories using unsupervised learning in the coefficient feature space. 227-238 2006 12 Multimedia Syst. 3 http://dx.doi.org/10.1007/s00530-006-0058-5 db/journals/mms/mms12.html#NaftelK06