Recognizing Multiple Persons' Facial Expressions Using HMM Based on Automatic Extraction of Significant Frames from Image Sequences.
Takahiro OtsukaJun OhyaPublished in: ICIP (2) (1997)
Keyphrases
- automatic extraction
- facial expressions
- image sequences
- recognition of facial expressions
- video sequences
- facial expression recognition
- human faces
- expression recognition
- facial images
- face recognition
- human movements
- facial features
- face images
- moving objects
- action units
- spatio temporal
- motion analysis
- hidden markov models
- multi frame
- video frames
- optical flow
- expression classification
- head motion
- head movements
- facial animation
- facial actions
- facial feature points
- facial expression analysis
- facial action units
- moving camera
- human computer interaction
- feature points
- motion patterns
- motion parameters
- cohn kanade
- camera motion