Surflets: a sparse representation for multidimensional functions containing smooth discontinuities.
Venkat ChandrasekaranMichael B. WakinDror BaronRichard G. BaraniukPublished in: ISIT (2004)
Keyphrases
- sparse representation
- piecewise smooth
- dictionary learning
- sparse coding
- compressive sensing
- image patches
- reconstruction error
- face recognition
- image classification
- object tracking
- compressed sensing
- image representation
- signal processing
- joint optimization
- random projections
- high dimensional data
- dimensionality reduction
- sparse approximations
- regularized least squares
- sparse reconstruction
- negative matrix factorization
- image processing
- piecewise constant
- test images
- high dimensional
- neural network