Noise and Signal Estimation in Magnitude MRI and Rician Distributed Images: A LMMSE Approach.
Santiago Aja-FernándezCarlos Alberola-LópezCarl-Fredrik WestinPublished in: IEEE Trans. Image Process. (2008)
Keyphrases
- low snr
- low signal to noise ratio
- linear minimum mean square error
- image noise
- image data
- noise sensitivity
- noise filtering
- gaussian noise
- phase information
- pixel intensities
- intensity distribution
- image registration
- multiplicative noise
- mri images
- additive noise
- noise model
- input image
- power spectra
- signal subspace
- magnetic resonance imaging
- magnetic resonance images
- slowly varying
- random noise
- noise free
- high pass
- edge detection
- removing noise
- mri data
- brain scans
- phase unwrapping
- band limited
- noise level