Denoising and fast diffusion imaging with physically constrained sparse dictionary learning.
Alexandre GramfortCyril PouponMaxime DescoteauxPublished in: Medical Image Anal. (2014)
Keyphrases
- dictionary learning
- denoising
- diffusion imaging
- sparse coding
- sparse representation
- natural images
- image denoising
- white matter
- sparse codes
- image patches
- image processing
- group sparsity
- sparsity constraints
- total variation
- computer vision
- wavelet domain
- face recognition
- nonlinear diffusion
- diffusion tensor
- nearest neighbor
- generative model
- dictionary learning for sparse
- image classification