Spontaneous Expression Recognition using Universal Attribute Model

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
Nazil PerveenC Krishna Mohan

Abstract

Spontaneous expression recognition refers to recognizing non-posed human expressions. In literature, most of the existing approaches for expression recognition mainly rely on manual annotations by experts, which is both time-consuming and difficult to obtain. Hence, we propose an unsupervised framework for spontaneous expression recognition that preserves discriminative information for the videos of each expression without using annotations. Initially, a large Gaussian mixture model called universal attribute model (UAM) is trained to learn the attributes of various expressions implicitly. Attributes are the movements of various facial muscles that are combined to form a particular facial expression. Then a concatenated mean vector called the super expression-vector (SEV) is formed by using a maximum a posteriori adaptation of the UAM means for each expression clip. This SEV contains attributes from all the expressions resulting in a high dimensional representation. To retain only the attributes of that particular expression clip, the SEV is decomposed using factor analysis to produce a low-dimensional expression-vector. This procedure does not require any class labels and produces expression-vectors that are distinct for each ...Continue Reading

References

Mar 1, 1981·Psychophysiology·P EkmanW V Friesen
Apr 14, 2007·IEEE Transactions on Pattern Analysis and Machine Intelligence·Guoying Zhao, Matti Pietikäinen
Jun 14, 2008·IEEE Transactions on Pattern Analysis and Machine Intelligence·Florent Perronnin
Nov 26, 2008·IEEE Transactions on Pattern Analysis and Machine Intelligence·Zhihong ZengThomas S Huang
May 12, 2012·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Seyed Mehdi Lajevardi, Hong Ren Wu
Oct 8, 2014·IEEE Transactions on Cybernetics·Lin ZhongDimitris N Metaxas
Mar 18, 2015·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Dong LiKin-Man Lam
Jan 14, 2016·IEEE Transactions on Pattern Analysis and Machine Intelligence·Ciprian Adrian CorneanuSergio Escalera Guerrero

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