Variable patch size sparse representation over learned dictionaries.
Mahmoud NazzalHüseyin ÖzkaramanliPublished in: SIU (2014)
Keyphrases
- sparse representation
- image patches
- dictionary learning
- sparse coding
- learned dictionary
- image classification
- face recognition
- joint optimization
- object tracking
- compressed sensing
- compressive sensing
- random projections
- signal processing
- sparse approximations
- negative matrix factorization
- dimensionality reduction
- high dimensional data
- regularized least squares
- image processing
- reconstruction error
- decision trees
- test images
- data analysis
- computer vision
- piecewise smooth
- image segmentation
- norm minimization
- single image super resolution
- sparse coefficients
- natural images