Multiscale Bases for the Sparse Representation of Boundary Integral Operators on Complex Geometry.
Johannes TauschJacob WhitePublished in: SIAM J. Sci. Comput. (2003)
Keyphrases
- sparse representation
- multiscale
- dictionary learning
- sparse coefficients
- image representation
- sparse coding
- compressed sensing
- image classification
- face recognition
- joint optimization
- compressive sensing
- image patches
- negative matrix factorization
- reconstruction error
- piecewise smooth
- high dimensional data
- random projections
- scale space
- regularized least squares
- three dimensional
- image processing
- neural network
- norm minimization
- dimensionality reduction
- sparse approximations
- coarse scale
- fine scale
- signal processing
- machine learning