Noise reduction by joint maximum a posteriori spectral amplitude and phase estimation with super-Gaussian speech modelling.
Thomas LotterPeter VaryPublished in: EUSIPCO (2004)
Keyphrases
- noise reduction
- maximum a posteriori
- map estimation
- edge preserving
- maximum likelihood
- speech enhancement
- noisy environments
- generalized gaussian
- image prior
- markov random field
- signal to noise ratio
- image reconstruction
- label field
- parameter estimation
- median filter
- noise level
- em algorithm
- prior model
- edge detection
- expectation maximization
- noise free
- wiener filter
- energy function
- speech signal
- linear prediction
- phase unwrapping
- single channel
- graph cuts
- denoising algorithm
- nonlinear diffusion
- gaussian noise
- high quality