Sparse representation utilizing tight frame for phase retrieval.
Baoshun ShiQiusheng LianShuzhen ChenPublished in: EURASIP J. Adv. Signal Process. (2015)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- face recognition
- image classification
- compressed sensing
- random projections
- joint optimization
- compressive sensing
- negative matrix factorization
- image patches
- high dimensional data
- regularized least squares
- signal processing
- sparse approximations
- image representation
- piecewise smooth
- object tracking
- test images
- image reconstruction
- reconstruction error
- dimensionality reduction
- image retrieval
- data analysis
- sparse coefficients
- sparse learning
- data sets
- small number
- higher order
- image segmentation
- decision trees
- machine learning
- sparsity constraints
- sparse reconstruction
- linear combination
- data mining