Mitra, SushmitaAcharya, Tinku2011-08-052011-08-052007IEEE Transactions on Systems, Man, and Cybernetics, Part C (Applications and Reviews), v.37, p.311-324http://hdl.handle.net/10263/2344enFace recognitionFacial expressionHand guesturesHidden Markov modelSoft computingOptical flowGesture recognition : a surveyArticle