Enhancing sparsity using gradients for compressive sensing.
Vishal M. PatelGlenn R. EasleyRama ChellappaDennis M. HealyPublished in: ICIP (2009)
Keyphrases
- compressive sensing
- compressive sampling
- sparse representation
- sparse reconstruction
- random projections
- image recovery
- compressed sensing
- signal reconstruction
- signal processing
- dictionary learning
- structured sparsity
- face recognition
- image representation
- orthogonal matching pursuit
- sparse coding
- distributed source coding
- data sets
- image retrieval
- neural network