LAFTER: a real-time face and lips tracker with facial expression recognition

@article{Oliver2000LAFTERAR,
  title={LAFTER: a real-time face and lips tracker with facial expression recognition},
  author={Nuria Oliver and Alex Pentland and François B{\'e}rard},
  journal={Pattern Recognition},
  year={2000},
  volume={33},
  pages={1369-1382}
}
This paper describes an active camera real time system for tracking shape description and classi cation of the human face and mouth expressions using only a PC or equivalent computer The system is based on use of D blob features which are spatially compact clusters of pixels that are similar in terms of low level image properties Patterns of behavior e g facial expressions and head movements can be classi ed in real time using Hidden Markov Models HMMs The system has been tested on hundreds of… CONTINUE READING
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