A novel grouped sparse representation for face recognition.
Jingcheng KeYali PengShigang LiuZengguo SunXili WangPublished in: Multim. Tools Appl. (2019)
Keyphrases
- sparse representation
- face recognition
- dictionary learning
- sparse coding
- joint optimization
- compressive sensing
- negative matrix factorization
- object tracking
- random projections
- reconstruction error
- image classification
- compressed sensing
- test images
- face images
- linear discriminant analysis
- sparse approximations
- piecewise smooth
- regularized least squares
- image patches
- image representation
- signal processing
- principal component analysis
- neural network
- sparse reconstruction
- computer vision
- feature extraction
- facial expressions
- illumination variations
- dimensionality reduction
- subspace learning
- multiscale
- norm minimization
- high dimensional data
- face databases
- linear subspace
- robust face recognition
- sparse codes