SGS2Net: deep representation of facial expression by graph-preserving sparse coding.
Ruicong ZhiMing WanXin HuPublished in: J. Electronic Imaging (2020)
Keyphrases
- facial expressions
- sparse coding
- image representation
- facial expression recognition
- dictionary learning
- sparse representation
- natural images
- human faces
- face recognition
- face images
- linear combination
- image classification
- facial images
- generative model
- facial features
- unsupervised learning
- facial actions
- video sequences
- visual words
- multiscale
- subspace learning
- shift invariant
- feature space
- image processing
- image retrieval
- image patches
- computer vision