A fast variational on-line learning technique for training a transformed hidden Markov model. A simplified general model and an associated estimation algorithm is provided for modeling visual data such as a video sequence. Specifically, once the model has been initialized, an expectation-maximization...http://www.google.com/patents/US7657102?utm_source=gb-gplus-sharePatent US7657102 - System and method for fast on-line learning of transformed hidden Markov models
