Image Variational Denoising Using Gradient Fidelity on Curvelet Shrinkage.
Liang XiaoLili HuangBadrinath RoysamPublished in: EURASIP J. Adv. Signal Process. (2010)
Keyphrases
- denoising
- denoising algorithm
- total variation regularization
- image denoising
- denoising methods
- total variation
- gaussian noise
- image data
- noisy images
- input image
- image processing
- image segmentation
- natural images
- wavelet based denoising
- edge detection
- wavelet domain
- image features
- hard thresholding
- enhanced image
- multiscale
- basis pursuit
- noise suppression
- fidelity term
- gradient direction
- wavelet shrinkage
- soft thresholding
- image fidelity
- evolution equation
- wavelet denoising
- translation invariant
- image gradient
- noise removal
- image structure
- vector field
- image deblurring
- image retrieval
- smoothness term
- wavelet packet
- gradient orientation
- energy function
- shrinkage functions
- image regions