Gradient Hard Thresholding Pursuit for Sparsity-Constrained Optimization.
Xiao-Tong YuanPing LiTong ZhangPublished in: CoRR (2013)
Keyphrases
- constrained optimization
- hard thresholding
- denoising
- constraint handling
- constrained optimization problems
- objective function
- unconstrained optimization
- penalty function
- image denoising
- penalty functions
- wavelet denoising
- sparse representation
- standard deviation
- gaussian noise
- edge detection
- image processing
- noisy images
- iterative methods
- wavelet coefficients
- particle swarm optimization
- object recognition
- multiscale