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January 17, 2019 04:07AM
Dear,

There are two terms called grid and grid spacing, which makes me confused. I found it when using adwarp command with -dxyz option. Here are the situation:

anat+tlrc: voxel size=2x2x2, grid=91x109x91
epi+orig: voxel size=3.312x3.312x3.312, grid=64x64x48
epi+tlrc: voxel size=3.312x3.312x3.312, grid=64x64x48

As far as i know, grid spacing should be the spacing between grid lines in voxels, am i right?
However, it makes no difference on the grid of epi after using -dxyz=3 in adwarp command, would you mind giving me some idea?

Yours,
Peng
Subject Author Posted

Where's grid spacing information in header of NIFTI image file?

Peng Ren January 17, 2019 04:07AM

Re: Where's grid spacing information in header of NIFTI image file?

rick reynolds January 17, 2019 09:10AM

Re: Where's grid spacing information in header of NIFTI image file?

Peng Ren January 18, 2019 01:39AM

Re: Where's grid spacing information in header of NIFTI image file?

rick reynolds January 18, 2019 09:04AM

Re: Where's grid spacing information in header of NIFTI image file?

Peng Ren January 18, 2019 09:26PM

Re: Where's grid spacing information in header of NIFTI image file?

rick reynolds January 22, 2019 09:04AM



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