EM algorithm-based adaptive custom thresholding for image denoising in wavelet domain.
S. Selvakumar RajaMala JohnPublished in: Int. J. Imaging Syst. Technol. (2009)
Keyphrases
- em algorithm
- image denoising
- wavelet domain
- denoising
- wavelet denoising
- expectation maximization
- wavelet thresholding
- noisy images
- spatially adaptive
- image processing
- mixture model
- natural images
- wavelet coefficients
- total variation
- maximum likelihood
- discrete wavelet transform
- shift invariant
- wavelet domain hidden markov tree
- gaussian mixture model
- parameter estimation
- generative model
- denoising algorithm
- soft thresholding
- sar images
- frequency domain
- denoising methods
- wavelet shrinkage
- wavelet transform
- noise suppression
- gaussian noise
- noise removal
- multiresolution
- maximum a posteriori
- multiscale
- image segmentation
- nonlinear diffusion
- edge detection
- wavelet basis
- machine learning
- translation invariant
- object recognition
- gray level
- probability density function