Ringing Artifact Suppression Using Sparse Representation.
Alexey V. UmnovAndrey S. KrylovAndrey V. NasonovPublished in: ACIVS (2015)
Keyphrases
- sparse representation
- dictionary learning
- face recognition
- sparse coding
- image classification
- compressive sensing
- compressed sensing
- image patches
- random projections
- signal processing
- reconstruction error
- sparse approximations
- regularized least squares
- high dimensional data
- image representation
- total variation
- norm minimization
- sparse reconstruction
- negative matrix factorization
- dimensionality reduction
- piecewise smooth
- image denoising
- face images
- data mining
- sparsity constraints
- edge detection
- feature vectors
- neural network