New inexact explicit thresholding/shrinkage formulas for inverse problems with overlapping group sparsity.
Gang LiuTing-Zhu HuangXiao-Guang LvJun LiuPublished in: EURASIP J. Image Video Process. (2016)
Keyphrases
- inverse problems
- group sparsity
- structured sparsity
- regularization methods
- convex optimization
- low rank
- denoising
- image reconstruction
- global optimization
- sparse coding
- dictionary learning
- regularization method
- optimization methods
- image denoising
- total variation
- optimization problems
- partial differential equations
- natural images
- sparse representation
- early vision
- edge detection
- image processing
- pattern recognition
- image segmentation
- linear combination
- parameter space
- compressive sensing
- evolutionary algorithm
- dimensionality reduction
- face recognition
- cost function
- image features
- gray level