Spontaneous Facial Expression Recognition using Sparse Representation.
Dawood Al ChantiAlice CaplierPublished in: CoRR (2018)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- face recognition
- compressive sensing
- image classification
- negative matrix factorization
- facial expression recognition
- dimensionality reduction
- compressed sensing
- joint optimization
- image patches
- high dimensional data
- signal processing
- reconstruction error
- random projections
- object tracking
- image representation
- sparse approximations
- regularized least squares
- norm minimization
- sparse reconstruction
- piecewise smooth
- pattern recognition
- sparsity constraints
- basis vectors
- higher order
- sparse learning
- machine learning
- database