Modelling appearance variations in expressive and neutral face image for automatic facial expression recognition.
H. N. Naveen KumarM. S. Guru PrasadMohd Asif Shah MahadevaswamyJagadeesh BSudheesh Kannur Vasudeva RaoPublished in: IET Image Process. (2024)
Keyphrases
- face images
- illumination variations
- appearance variations
- face recognition
- human faces
- facial expressions
- lighting conditions
- active appearance models
- illumination conditions
- low resolution
- facial features
- high resolution
- principal component analysis
- pose variations
- input image
- feature extraction
- feature vectors
- visual tracking
- object tracking
- facial expression recognition
- feature points
- image set
- image matching
- partial occlusion
- face verification
- expression recognition
- appearance model
- face detection
- training set
- sparse representation
- recognition rate
- three dimensional
- image retrieval