Re: [Freesurfer] mri_convert downsample then resample shifts image upward one voxel

what are your exact mri_convert commands? doug

On 08/09/2012 06:05 PM, Joshua Lee wrote:

I used mri_convert to resample my norm.mgz to 0.25 mm iso nii.gz, and then again back up to 1mm isotropic space. The resultant image shifted up a voxel from the original converted straght to nii.gz. This points to the resampling procedure, and not the conversion to different file format. Suggestions?

Note: I wanted to hand trace the hippocampus in the norm.mgz, and upsampled the norm.mgz to trace on. I traced it, and then downsampled to 1mm to compare with Freesurfer segmentation, but found it shifted. Josh

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