Mammograms Enhancement and Denoising Using Generalized Gaussian Mixture Model in Nonsubsampled Contourlet Transform.
Xinsheng ZhangHua XiePublished in: J. Multim. (2009)
Keyphrases
- gaussian mixture model
- denoising
- nonsubsampled contourlet transform
- contourlet transform
- image processing
- image fusion
- image denoising
- mixture model
- em algorithm
- infrared
- feature vectors
- maximum likelihood
- expectation maximization
- natural images
- background subtraction
- noisy images
- frequency domain
- multiscale
- remote sensing
- gaussian noise
- translation invariant
- wavelet domain
- gaussian mixture modeling
- face detection
- generative model
- edge detection
- principal component analysis
- image features
- probabilistic model
- wavelet packet
- feature space
- pattern recognition