Quantitative MR Image Reconstruction Using Parameter-Specific Dictionary Learning With Adaptive Dictionary-Size and Sparsity-Level Choice.
Andreas KoflerKirsten Miriam KerkeringLaura GöschelAriane FillmerChristoph KolbitschPublished in: IEEE Trans. Biomed. Eng. (2024)
Keyphrases
- sparse representation
- image reconstruction
- dictionary learning
- compressed sensing
- sparse coding
- random projections
- image super resolution
- reconstructed image
- super resolution
- image classification
- face recognition
- sparsity constraints
- sparse codes
- maximum a posteriori
- image registration
- compressive sensing
- dictionary learning for sparse
- high dimensional data
- image representation
- signal processing
- reconstruction method
- sparse representation based classification
- test images
- dimensionality reduction
- nearest neighbor
- computational complexity
- image reconstruction algorithms
- image patches
- magnetic resonance
- higher order
- feature space
- discriminative dictionary
- multiscale