Retinal vessel enhancement via sparse coding and dictionary learning.
Bangzhong GuBin ChenLimin LuoPublished in: MVA (2017)
Keyphrases
- dictionary learning
- sparse coding
- sparse representation
- natural images
- image classification
- linear combination
- sparse codes
- image representation
- object category recognition
- group sparsity
- discriminative power
- generative model
- unsupervised learning
- single image super resolution
- feature space
- image processing
- sparsity constraints
- pattern recognition
- image patches
- object recognition
- input image
- bag of words
- test images
- visual words
- pairwise
- high quality