Removal of correlated speckle noise using sparse and overcomplete representations.
Bhabesh DekaPrabin Kumar BoraPublished in: Biomed. Signal Process. Control. (2013)
Keyphrases
- speckle noise
- ultrasound images
- sparse representation
- low contrast
- noise reduction
- sar images
- sparse coding
- additive noise
- synthetic aperture radar
- multiplicative noise
- speckle reduction
- denoising
- edge preserving
- anisotropic diffusion
- ultrasound imaging
- natural images
- wavelet domain
- texture information
- gray level
- signal to noise ratio
- spatial domain
- image patches
- face detection
- image classification
- multiscale
- fully automatic
- texture features
- probability distribution