An improved redundant dictionary based on sparse representation for face recognition.
Fanrong MengZhenyu TangZhixiao WangPublished in: Multim. Tools Appl. (2017)
Keyphrases
- sparse representation
- face recognition
- dictionary learning
- sparse coding
- compressive sensing
- sparse approximations
- object tracking
- subspace learning
- face images
- joint optimization
- negative matrix factorization
- image patches
- image classification
- face databases
- reconstruction error
- feature extraction
- signal processing
- test images
- sparse reconstruction
- regularized least squares
- random projections
- computer vision
- compressed sensing
- illumination variations
- facial expressions
- nearest neighbor
- face recognition algorithms
- principal component analysis
- dimensionality reduction
- machine learning
- image data
- feature analysis
- piecewise smooth
- face recognition systems