Spontaneous Facial Expression Recognition using Sparse Representation.
Dawood Al ChantiAlice CaplierPublished in: VISIGRAPP (5: VISAPP) (2017)
Keyphrases
- sparse representation
- dictionary learning
- face recognition
- sparse coding
- facial expression recognition
- image classification
- image representation
- compressive sensing
- signal processing
- compressed sensing
- reconstruction error
- joint optimization
- negative matrix factorization
- test images
- image patches
- random projections
- object tracking
- piecewise smooth
- sparse reconstruction
- sparsity constraints
- sparse approximations
- intrinsic image decomposition
- high dimensional data
- dimensionality reduction
- norm minimization
- facial expressions
- data sets
- convex optimization
- missing data
- face images
- database