Keyphrases
- human faces
- facial expressions
- lighting conditions
- face recognition
- face detection
- facial feature points
- facial animation
- facial features
- facial images
- head motion
- human face detection
- face images
- facial actions
- object tracking
- particle filter
- facial expression recognition
- human head
- facial image analysis
- active appearance models
- motion model
- mean shift
- computer vision
- motion tracking
- face region
- visual tracking
- human computer interaction
- data sets