-Norm Wavelet Frame-Based Speckle Noise Reduction.
Xinwu LiuWenhui LianPublished in: IEEE Trans. Circuits Syst. II Express Briefs (2022)
Keyphrases
- speckle noise
- speckle reduction
- ultrasound images
- denoising
- wavelet domain
- low contrast
- sar images
- noise reduction
- additive noise
- synthetic aperture radar
- anisotropic diffusion
- wavelet coefficients
- median filter
- multiscale
- edge preserving
- wavelet transform
- texture information
- gray level
- medical ultrasound
- image denoising
- ultrasound imaging
- multiresolution
- natural images
- discrete wavelet transform
- edge detection
- maximum likelihood
- image processing
- laplacian pyramid
- spatial domain
- noisy images
- signal to noise ratio
- least squares
- subband
- motion estimation
- frequency domain
- total variation
- image reconstruction