Sparse coding-based representation of LBP difference for 3D/4D facial expression recognition.
Hela BejaouiHaythem GhazouaniWalid BarhoumiPublished in: Multim. Tools Appl. (2019)
Keyphrases
- facial expression recognition
- sparse coding
- image representation
- local binary pattern
- facial expressions
- sparse representation
- dictionary learning
- human computer interaction
- natural images
- image classification
- face recognition
- linear combination
- unsupervised learning
- feature extraction
- multiscale
- generative model
- human faces
- visual words
- high dimensional
- spatial information
- face detection
- feature space
- facial features
- facial images
- object recognition
- bag of words
- pattern recognition
- data sets
- feature descriptors
- decision trees