Dictionary Learning with Statistical Sparsity in the Presence of Noise.
Shayan AziznejadEmmanuel SoubiesMichael UnserPublished in: EUSIPCO (2020)
Keyphrases
- dictionary learning
- sparse representation
- sparse coding
- sparsity constraints
- image transformations
- image super resolution
- image classification
- group sparsity
- object category recognition
- sparse codes
- face recognition
- image patches
- high dimensional data
- high dimensional
- dimensionality reduction
- compressive sensing
- missing data
- dictionary learning for sparse
- natural images
- test images
- negative matrix factorization
- clustering algorithm
- image representation
- unsupervised learning
- em algorithm
- signal processing
- k means
- image segmentation