Speckle Noise Reduction of Ultrasound Images Based on an Undecimated Wavelet Packet Transform Domain Nonhomomorphic Filtering.
Sheng YanJianping YuanMinggang LiuChaohuan HouPublished in: BMEI (2009)
Keyphrases
- transform domain
- wavelet packet
- speckle noise
- ultrasound images
- spatial domain
- wavelet decomposition
- filter bank
- wavelet domain
- speckle reduction
- sar images
- filtering scheme
- frequency domain
- additive noise
- denoising
- speckle reducing anisotropic diffusion
- discrete wavelet transform
- subband
- synthetic aperture radar
- image coding
- ultrasound imaging
- multiresolution
- medical ultrasound
- multiscale
- wavelet coefficients
- noise reduction
- blurred images
- edge detection
- signal processing
- feature vectors
- denoising algorithm
- wavelet transform
- low contrast
- computationally efficient
- median filter
- anisotropic diffusion
- high frequency
- high quality