Re: [Freesurfer] local intensity inhomogeneity

2016-09-20 Thread Bruce Fischl
Hi Jason

this is what control points are designed to fix. Why don't they help?
Bruce
On 
Tue, 20 Sep 2016, Jason Tourville wrote:

> Hello freesurfers,We've seen some poor surface reconstructions due to local
> inhomogeneities that remain in the brainmask volume. We see omission of
> significant portions of brain tissue due to signal fall off (both gray and
> white voxels are darker than in surrounding area) that we are unable to
> current through control points or other manual interventions. Can anyone
> suggest a tool for correcting latent local inhomogeneities? Is anyone aware
> of a manual tool that allows one to "brighten" the voxels from some point
> outward at some falloff rate?
> 
> Any help would be greatly appreciated.
> 
> Best,
> Jason
> 
> 
> 
>
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[Freesurfer] local intensity inhomogeneity

2016-09-20 Thread Jason Tourville
Hello freesurfers,
We've seen some poor surface reconstructions due to local inhomogeneities
that remain in the brainmask volume. We see omission of significant
portions of brain tissue due to signal fall off (both gray and white voxels
are darker than in surrounding area) that we are unable to current through
control points or other manual interventions. Can anyone suggest a tool for
correcting latent local inhomogeneities? Is anyone aware of a manual tool
that allows one to "brighten" the voxels from some point outward at some
falloff rate?

Any help would be greatly appreciated.

Best,
Jason
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The information in this e-mail is intended only for the person to whom it is
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dispose of the e-mail.