Fast Nonlocal Means for MRI denoising

This is a fast and robust implementation of the popular Nonlocal Means for MRI-Rician denoising. It works by computing the non-local weights based on distances in a features space comprising the local mean value and gradients of the image.

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:

http://www.nitrc.org/snapshots.php?group...

For diffusion MRI volumes, see also: http://www.nitrc.org/projects/jalmmse_dw...

Key words: nonlocal (non-local) means, NLM, C++, ITK
Download Now Download Now
OR See All Files

Specifications

Category:Artifact Removal, Filtering, Intensity Non-uniformity Correction, Quality Metrics
License:3D Slicer License
Development Status:5 - Production/Stable/Mature
Domain:MR
Environment:Console (Text Based), Other Environment
Intended Audience:End Users
Natural Language:English
Operating System:MacOS, Microsoft, Linux, Other UNIX-like
Programming Language:C++
Supported Data Format:ANALYZE, MINC, NIfTI-1, Nrrd, Other Format

Associations

build requires:
works well with:

Recent Activity

Show: 
Document Activity

PubMed Mentions documentation

Automatic computation of electrode trajectories for Deep Brain Stimulation: a hybrid symbolic and numerical approach. posted by Nina Preuss on Dec 16, 2017

Document Activity

PubMed Mentions documentation

Effect of Bcl-2 rs956572 SNP on regional gray matter volumes and cognitive function in elderly males without dementia. posted by Nina Preuss on Dec 16, 2017

Document Activity

PubMed Mentions documentation

A shape-optimized framework for kidney segmentation in ultrasound images using NLTV denoising and DRLSE. posted by Nina Preuss on Dec 16, 2017

Document Activity

PubMed Mentions documentation

Off-line determination of the optimal number of iterations of the robust anisotropic diffusion filter applied to denoising of brain MR images. posted by Nina Preuss on Dec 16, 2017

Document Activity

PubMed Mentions documentation

Local/non-local regularized image segmentation using graph-cuts: application to dynamic and multispectral MRI. posted by Nina Preuss on Dec 16, 2017

Document Activity

PubMed Mentions documentation

Usability of unbiased nonlocal means for de-noising intraoperative magnetic resonance images in neurosurgery. posted by Nina Preuss on Dec 16, 2017

Document Activity

PubMed Mentions documentation

An iterative tomosynthesis reconstruction using total variation combined with non-local means filtering. posted by Nina Preuss on Dec 16, 2017

Document Activity

PubMed Mentions documentation

Radiation dose reduction with dictionary learning based processing for head CT. posted by Nina Preuss on Dec 16, 2017

File Activity

unlmeans: Whole package with source code, pre-compiled binaries, Matlab/Octave code, and test data release

UnbiasedNonLocalMeans.tar.gz posted by Antonio Tristán-Vega on Oct 24, 2013

File Activity

unlmeans: Beta 1.0 for Windows only (MinGW compilation) release

UnbiasedNonLocalMeans.exe.zip posted by Antonio Tristán-Vega on Oct 24, 2013