Image denoising via sparse coding using eigenvectors of graph Laplacian.
Yibin TangYing ChenNing XuAimin JiangLin ZhouPublished in: Digit. Signal Process. (2016)
Keyphrases
- graph laplacian
- sparse coding
- image denoising
- manifold structure
- natural images
- denoising
- total variation
- higher order
- input image
- image patches
- object recognition
- spectral clustering
- multiscale
- unsupervised learning
- linear combination
- sparse representation
- image classification
- image processing
- basis functions
- generative model
- kernel machines
- euclidean space
- multiresolution
- test images
- learning tasks
- active learning
- convex optimization