Robust Structured Dictionary Learning For Block Sparse Representations Using α-Divergence.
Abd-Krim SeghouanePublished in: ICIP (2020)
Keyphrases
- dictionary learning
- sparse representation
- sparse coding
- image super resolution
- sparsity constraints
- face recognition
- image classification
- group sparsity
- signal processing
- sparse representation based classification
- compressive sensing
- dimensionality reduction
- random projections
- negative matrix factorization
- image data
- image patches
- sparse codes
- linear combination
- high dimensional data
- data sets
- image representation
- generative model
- natural images
- co occurrence
- similarity measure
- image processing
- feature selection
- machine learning