Keyphrases
- gaussian mixture
- wiener filtering
- image reconstruction
- minimum variance
- em algorithm
- denoising
- wiener filter
- gaussian mixture model
- multiresolution
- closed form
- expectation maximization
- probability density function
- blurred images
- signal processing
- image compression
- covariance matrix
- mixture model
- image deconvolution
- restoration method
- wavelet transform
- density estimation
- image processing
- filtering method
- image representation
- maximum likelihood
- multiscale
- feature extraction
- image restoration
- noisy images
- frequency domain
- probability distribution
- face recognition
- clustering algorithm