Keyphrases
- human faces
- maximum likelihood
- motion estimation
- facial expressions
- lighting conditions
- face recognition
- face detection
- video sequences
- face images
- image sequences
- facial images
- em algorithm
- super resolution
- facial features
- computational complexity
- expectation maximization
- optical flow
- active appearance models
- motion parameters
- human head
- motion model
- computer vision
- gaussian distribution
- human face detection
- facial expression recognition
- texture mapping
- face model
- color images
- facial image analysis