Medical Ultrasonography Denoising Using Sparse Coding Shrinkage.
Xi ChenNong SangHaitao GanZhiping DanYanfei ChenHexing RenPublished in: ICIG (2013)
Keyphrases
- sparse coding
- denoising
- natural images
- image denoising
- dictionary learning
- image patches
- image processing
- wavelet domain
- total variation
- image classification
- linear combination
- sparse representation
- shift invariant
- object category recognition
- denoising algorithm
- sparse codes
- generative model
- unsupervised learning
- nonlinear diffusion
- wavelet packet
- data sets
- test images
- image representation
- visual words
- discriminative dictionary
- feature space
- pattern recognition
- partial differential equations
- probabilistic model
- high dimensional
- feature vectors
- dimensionality reduction