A Novel Wavelet Threshold Optimization Via PSO for Image Denoising.
Xuejie WangYi LiuYanjun LiPublished in: ISCID (1) (2011)
Keyphrases
- image denoising
- denoising
- wavelet coefficients
- wavelet domain
- soft thresholding
- noisy images
- denoising methods
- total variation
- wavelet based image denoising
- denoising algorithm
- natural images
- wavelet shrinkage
- optimization algorithm
- hard thresholding
- wavelet denoising
- image processing
- global optimization
- wavelet transform
- multiresolution
- wavelet decomposition
- subband
- bilateral filtering
- multiscale
- singularity detection
- additive gaussian noise
- contourlet transform
- frequency domain
- wavelet domain hidden markov tree
- optimization problems
- particle swarm optimization
- optimization method
- feature vectors
- total variation regularization
- discrete wavelet transform
- undecimated wavelet transform
- higher peak signal to noise ratio
- feature extraction
- computer vision
- nonlinear diffusion
- computational complexity
- wavelet packet transform
- penalty function
- shift invariant
- gaussian noise
- constrained optimization
- differential evolution