Facial expression classification based on MPEG-4 FAPs: the use of evidence and prior knowledge for uncertainty removal

M. Wallace, A. Raouzaiou, N. Tsapatsoulis, S. Kollias
2004 IEEE International Conference on Fuzzy Systems (IEEE Cat. No.04CH37542)  
As low resolution shots, rotations of the head with respect to the camera, face deformation due to speech and so on inflict a great deal of uncertainty in FAP measurements, uncertainty is also inherent in the process of expression analysis. In this paper we tackle such uncertainty via the observation that user emotions do not typically alter rapidly very often. Thus, possibilistic evidence may be gathered from each frame about the user expression; evidence from the current and recent frames can
more » ... d recent frames can be combined using evidence theory.
doi:10.1109/fuzzy.2004.1375686 dblp:conf/fuzzIEEE/WallaceRTK04 fatcat:r67q2ucktzgrznomasemhhszdm