An Efficient Dictionary Learning Algorithm and Its Application to 3-D Medical Image Denoising.
Shutao LiLeyuan FangHaitao YinPublished in: IEEE Trans. Biomed. Eng. (2012)
Keyphrases
- image denoising
- dictionary learning
- natural images
- sparse coding
- denoising
- sparse representation
- noisy images
- total variation
- partial differential equations
- image processing
- bilateral filtering
- denoising algorithm
- wavelet coefficients
- augmented lagrangian
- denoising methods
- multiscale
- higher order
- input image
- image patches
- linear combination
- image classification
- test images
- convex optimization
- nearest neighbor