Group-Sparse Representation With Dictionary Learning for Medical Image Denoising and Fusion.
Shutao LiHaitao YinLeyuan FangPublished in: IEEE Trans. Biomed. Eng. (2012)
Keyphrases
- image denoising
- dictionary learning
- sparse representation
- denoising
- sparse coding
- natural images
- noisy images
- total variation
- image processing
- image classification
- face recognition
- wavelet coefficients
- group sparsity
- signal processing
- image patches
- test images
- compressive sensing
- sparse codes
- dimensionality reduction
- higher order
- high dimensional data
- data sets
- sparsity constraints
- principal component analysis
- feature extraction
- image representation