Image Block Compressive Sensing Reconstruction via Group-Based Sparse Representation and Nonlocal Total Variation.
Jin XuYuansong QiaoZhizhong FuQuan WenPublished in: Circuits Syst. Signal Process. (2019)
Keyphrases
- compressive sensing
- total variation
- sparse representation
- image denoising
- image restoration
- denoising
- dictionary learning
- random projections
- convex optimization
- compressed sensing
- test images
- sparse coding
- natural images
- transform domain
- face recognition
- regularization term
- noisy images
- signal processing
- regularization methods
- image patches
- wavelet domain
- image classification
- image processing
- high dimensional data
- gaussian noise
- image representation
- super resolution
- dimensionality reduction
- structured sparsity
- wavelet coefficients
- regularized least squares
- multiscale
- frequency domain
- wavelet transform
- pattern recognition
- high quality
- decision trees