Local Structure-Based Sparse Representation for Face Recognition.
Fan LiuJinhui TangYan SongLiyan ZhangZhenmin TangPublished in: ACM Trans. Intell. Syst. Technol. (2015)
Keyphrases
- sparse representation
- face recognition
- dictionary learning
- sparse coding
- compressive sensing
- subspace learning
- regularized least squares
- object tracking
- image classification
- signal processing
- random projections
- image representation
- high dimensional data
- image patches
- reconstruction error
- dimensionality reduction
- negative matrix factorization
- illumination variations
- joint optimization
- face images
- facial expressions
- compressed sensing
- sparsity constraints
- sparse coefficients
- natural images
- low dimensional
- feature extraction