Fast Nonlocal Means for MRI denoising
It can reach an acceleration factor of 20x over the original implementation, with an improved performance for medium-low SNR images.
We use a bias correction step for Rician noise based on the well-known Conventional Approach.
This software can be compiled either as a Slicer module or a stand-alone:
For diffusion MRI volumes, see also: http://www.nitrc.org/projects/jalmmse_dw...
Key words: nonlocal (non-local) means, NLM, C++, ITK