Multipitch estimation and instrument recognition by exemplar-based sparse representation.
Ikuo DegawaKei SatoMasaaki IkeharaPublished in: ACSSC (2013)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- face recognition
- reconstruction error
- compressive sensing
- image classification
- image patches
- image representation
- signal processing
- random projections
- compressed sensing
- dimensionality reduction
- object recognition
- piecewise smooth
- regularized least squares
- object tracking
- pattern recognition
- sparse coefficients
- sparse approximations
- negative matrix factorization
- high dimensional data
- feature extraction
- image processing
- sparsity constraints
- sparse reconstruction
- neural network
- action recognition
- unsupervised learning
- small number
- machine learning