Improving sparsity of coefficients for robust sparse and collaborative representation-based image classification.
Shaoning ZengJianping GouXiong YangPublished in: Neural Comput. Appl. (2018)
Keyphrases
- sparsity constraints
- image classification
- sparse representation
- sparse coding
- image representation
- dictionary learning
- negative matrix factorization
- low rank
- nonnegative matrix factorization
- sparse coefficients
- visual features
- high dimensional
- bag of words
- visual words
- natural images
- computationally efficient
- sparse representation based classification
- image features
- feature extraction
- face recognition
- compressive sensing
- linear combination
- bag of features
- collaborative learning
- sparse approximations
- spatial pyramid
- computer vision
- class specific
- random projections
- signal processing
- principal component analysis
- image processing