Denoising and Enhancement of Mammographic Images under the Assumption of heteroscedastic Additive Noise by an Optimal subband Thresholding.
Arianna MencattiniGiulia RabottinoMarcello SalmeriRoberto LojaconoBerardino SciunziPublished in: Int. J. Wavelets Multiresolution Inf. Process. (2010)
Keyphrases
- additive noise
- denoising
- noisy images
- synthesis filters
- subband
- wavelet domain
- wavelet packet
- image denoising
- mammographic images
- image processing
- frequency domain
- filter bank
- wavelet coefficients
- spatial domain
- wavelet decomposition
- image compression
- multiresolution
- edge detection
- wavelet transform
- discrete wavelet transform
- denoising algorithm
- bit rate
- maximum likelihood
- feature vectors
- natural images
- high frequency
- perfect reconstruction
- image enhancement
- speckle noise
- low contrast
- low pass
- denoising methods
- shift invariant
- multiscale
- random variables
- computational complexity
- pattern recognition
- image segmentation