Time varying linear prediction using sparsity constraints.
Srikanth Raj ChetupallyThippur V. SreenivasPublished in: ICASSP (2014)
Keyphrases
- linear prediction
- sparsity constraints
- image coding
- sparse representation
- sparse coding
- lossless compression
- low rank
- negative matrix factorization
- dictionary learning
- nonnegative matrix factorization
- prediction error
- speech signal
- global constraints
- subband
- autoregressive
- unsupervised learning
- high quality
- multiresolution
- speech recognition
- linear combination
- compression ratio
- image processing
- image patches
- dimensionality reduction
- high dimensional data
- feature space