PCM - Sigmadelta comparison and sparse representation quantization.
John J. BenedettoOnur OktayPublished in: CISS (2008)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- image classification
- face recognition
- image representation
- compressive sensing
- signal processing
- negative matrix factorization
- compressed sensing
- sparse approximations
- image patches
- reconstruction error
- random projections
- piecewise smooth
- high dimensional data
- joint optimization
- regularized least squares
- data analysis
- multiscale
- training data
- basis vectors
- sparsity constraints
- object tracking
- sparse coefficients
- data sets