Wavelets for Sparse Representation of Music.
Line Ørtoft EndeltAnders la Cour-HarboPublished in: WEDELMUSIC (2004)
Keyphrases
- sparse representation
- signal processing
- image representation
- dictionary learning
- sparse coding
- face recognition
- compressive sensing
- image patches
- image classification
- multiresolution
- high dimensional data
- reconstruction error
- image processing
- image compression
- wavelet transform
- compressed sensing
- negative matrix factorization
- sparse reconstruction
- regularized least squares
- feature extraction
- random projections
- piecewise smooth
- multiscale
- sparse approximations
- dimensionality reduction
- sparse codes
- joint optimization
- training data
- pattern recognition
- object recognition
- sparsity constraints
- test images
- bag of words
- data analysis
- training set
- linear combination
- image features