help > Incorrect mapping to surface for some nifti files
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May 27, 2020 09:05 AM | makis
Incorrect mapping to surface for some nifti files
Hi all.
I have a nifti file that I want to plot on a surface using brainnet.
For some reason, the mapping is not good and some holes (null color spots) are present in the output.
I am attaching a screenshot showing this problem (upper subplot is using the interpolation method and the lower subplot is using gaussian inter method).
For other nifti files (with similar dimensions) the output is perfect.
Any help?
I have a nifti file that I want to plot on a surface using brainnet.
For some reason, the mapping is not good and some holes (null color spots) are present in the output.
I am attaching a screenshot showing this problem (upper subplot is using the interpolation method and the lower subplot is using gaussian inter method).
For other nifti files (with similar dimensions) the output is perfect.
Any help?
May 29, 2020 01:05 AM | Mingrui Xia
RE: Incorrect mapping to surface for some nifti files
Hi, this might due to the spars
distribution of data in the nifti file. Please try "most neighbor
voxel" method or smooth the nifti file for
visulization.
Best,
Mingrui
Originally posted by makis:
Best,
Mingrui
Originally posted by makis:
Hi all.
I have a nifti file that I want to plot on a surface using brainnet.
For some reason, the mapping is not good and some holes (null color spots) are present in the output.
I am attaching a screenshot showing this problem (upper subplot is using the interpolation method and the lower subplot is using gaussian inter method).
For other nifti files (with similar dimensions) the output is perfect.
Any help?
I have a nifti file that I want to plot on a surface using brainnet.
For some reason, the mapping is not good and some holes (null color spots) are present in the output.
I am attaching a screenshot showing this problem (upper subplot is using the interpolation method and the lower subplot is using gaussian inter method).
For other nifti files (with similar dimensions) the output is perfect.
Any help?
May 29, 2020 07:05 AM | makis
RE: Incorrect mapping to surface for some nifti files
Hi Mingrui,
Using the "most neighbor voxel" I get some weird super saturated maps.
The smoothing for visualization purposes sounds a good idea. I will try that.
Would a Gaussian smoothing with FWHM 4 4 4 be ok? Is it too much?
Cheers,
Makis
Using the "most neighbor voxel" I get some weird super saturated maps.
The smoothing for visualization purposes sounds a good idea. I will try that.
Would a Gaussian smoothing with FWHM 4 4 4 be ok? Is it too much?
Cheers,
Makis