Fast Sublinear Sparse Representation using Shallow Tree Matching Pursuit.
Ali AyremlouThomas A. GoldsteinAshok VeeraraghavanRichard G. BaraniukPublished in: CoRR (2014)
Keyphrases
- sparse representation
- matching pursuit
- image coding
- dictionary learning
- basis functions
- sparse coding
- compressed sensing
- compressive sensing
- face recognition
- image classification
- random projections
- signal processing
- wavelet transform
- face identification
- image reconstruction
- joint optimization
- filter bank
- linear combination
- image representation
- machine learning
- high dimensional data
- image quality
- dimensionality reduction
- sparsity constraints