Group sparse representation of adaptive sub-domain selection for image classification.
Xian-Hua HanXu QiaoYen-Wei ChenPublished in: ICPR (2012)
Keyphrases
- sparse representation
- image classification
- dictionary learning
- sparse coding
- image representation
- image patches
- compressive sensing
- random projections
- reconstruction error
- object tracking
- compressed sensing
- regularized least squares
- bag of words
- image features
- sparse codes
- joint optimization
- sparse approximations
- feature extraction
- signal processing
- test images
- negative matrix factorization
- subspace learning
- piecewise smooth
- data sets
- neural network
- sparsity constraints
- norm minimization
- face recognition
- computer vision
- multiscale
- principal component analysis
- sparse reconstruction
- dimensionality reduction
- low resolution