Adaptive sparse coding on PCA dictionary for image denoising.
Qian LiuCaiming ZhangQiang GuoHui XuYuanfeng ZhouPublished in: Vis. Comput. (2016)
Keyphrases
- image denoising
- sparse coding
- natural images
- sparse codes
- sparse representation
- denoising
- dictionary learning
- total variation
- discriminative dictionary
- noisy images
- multiscale
- principal component analysis
- higher order
- face recognition
- object recognition
- image patches
- shift invariant
- dimensionality reduction
- wavelet domain
- input image
- image processing
- denoising algorithm
- feature space
- test images
- linear combination
- sparse representation based classification
- generative model
- image classification
- high dimensional
- unsupervised learning
- wavelet coefficients
- face images
- image representation
- bayesian networks
- low dimensional
- image deblurring
- feature extraction
- signal processing