Image denoising via group sparse eigenvectors of Graph Laplacian.
Yibin TangYing ChenNing XuAimin JiangLin ZhouPublished in: EUSIPCO (2016)
Keyphrases
- image denoising
- graph laplacian
- denoising
- random walk
- spectral clustering
- natural images
- spectral analysis
- laplacian matrix
- total variation
- noisy images
- basis functions
- manifold structure
- sparse coding
- euclidean space
- kernel machines
- wavelet coefficients
- pointwise
- image processing
- weighted graph
- wavelet domain
- semi supervised learning
- high dimensional
- sparse regression
- neighborhood graph
- convex optimization
- labeled and unlabeled data
- linear combination
- semi supervised
- data points
- contourlet transform
- pairwise
- multiscale