Image decomposition using optimally sparse representations and a variational approach.
Lingling JiangXiangchu FengHaiqing YinPublished in: Signal Image Video Process. (2007)
Keyphrases
- image decomposition
- sparse representation
- multiscale
- dictionary learning
- sparse coding
- image representation
- denoising
- image denoising
- piecewise smooth
- image classification
- face recognition
- negative matrix factorization
- joint optimization
- compressed sensing
- compressive sensing
- random projections
- mumford shah functional
- sparse reconstruction
- regularized least squares
- high dimensional data
- manifold learning
- dimensionality reduction
- image segmentation
- edge preserving
- image patches
- signal processing
- sparse coefficients
- decomposition algorithm
- natural images
- energy functional
- occlusion handling
- mumford shah
- feature selection
- image processing