Sparse Representation-Based Classification: Orthogonal Least Squares or Orthogonal Matching Pursuit?
Minshan CuiSaurabh PrasadPublished in: CoRR (2016)
Keyphrases
- orthogonal matching pursuit
- orthogonal least squares
- sparse representation
- sparse representation based classification
- dictionary learning
- sparse coding
- radial basis function
- compressed sensing
- face recognition
- compressive sensing
- image classification
- image patches
- dimensionality reduction
- signal processing
- random projections
- image representation
- high dimensional data
- sparse approximation
- test images
- transform domain
- rbf neural network
- neural network
- prior knowledge
- keypoints
- natural images
- active learning
- feature selection