Using mixture covariance matrices to improve face and facial expression recognitions.
Carlos E. ThomazDuncan Fyfe GilliesRaul Queiroz FeitosaPublished in: Pattern Recognit. Lett. (2003)
Keyphrases
- facial expressions
- covariance matrices
- human faces
- facial expression recognition
- face images
- expression recognition
- facial features
- covariance matrix
- facial images
- gaussian distribution
- face recognition
- gaussian mixture model
- video sequences
- face model
- facial actions
- facial expression analysis
- maximum likelihood
- gaussian mixture
- face detection
- distance measure
- vector space
- feature vectors
- head motion
- expression classification
- facial gestures
- facial motion
- expectation maximization
- facial action units
- recognition of facial expressions
- data points
- active appearance models
- lighting conditions
- image segmentation
- recognizing facial expressions