Similarity-based image classification via kernelized sparse representation.
Zhi ZengHeping LiWei LiangShuwu ZhangPublished in: ICIP (2010)
Keyphrases
- sparse representation
- image classification
- dictionary learning
- sparse coding
- image representation
- bag of words
- compressed sensing
- object tracking
- joint optimization
- image features
- visual words
- kernel function
- random projections
- reconstruction error
- sparse approximations
- regularized least squares
- image patches
- feature extraction
- negative matrix factorization
- compressive sensing
- sparse codes
- piecewise smooth
- test images
- norm minimization
- sparsity constraints
- sparse reconstruction
- face recognition
- image retrieval
- sparse coefficients