On an Efficient Sparse Representation of Objects of General Shape via Continuous Extension and Wavelet Approximation.
Naoki SaitoZhihua ZhangPublished in: Int. J. Wavelets Multiresolution Inf. Process. (2010)
Keyphrases
- sparse representation
- dictionary learning
- sparse approximations
- face recognition
- compressive sensing
- image classification
- sparse coding
- image representation
- compressed sensing
- random projections
- image patches
- wavelet transform
- reconstruction error
- denoising
- object tracking
- multiresolution
- signal processing
- d objects
- norm minimization
- data sets
- high dimensional data
- negative matrix factorization
- piecewise smooth
- joint optimization
- test images
- pattern recognition
- piecewise constant
- sparse coefficients