Reconstructive and Discriminative Sparse Representation for Visual Object Categorization.
Huanzhang FuEmmanuel DellandréaLiming ChenPublished in: BMVC (2011)
Keyphrases
- sparse representation
- visual object categorization
- sparse coding
- dictionary learning
- sparse codes
- discriminative power
- image classification
- face recognition
- reconstruction error
- image patches
- joint optimization
- subspace learning
- signal processing
- random projections
- high dimensional data
- sparse approximations
- compressed sensing
- image representation
- negative matrix factorization
- unsupervised learning
- compressive sensing
- dimensionality reduction
- natural images
- object tracking
- feature extraction
- sparsity constraints
- sparse reconstruction
- high dimensional
- neural network
- test images
- norm minimization
- small number