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Dear AFNI users-
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Sincerely, AFNI HQ
We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:
https://discuss.afni.nimh.nih.gov
Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.
The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.
Sincerely, AFNI HQ
| August 05, 2019 09:10AM | |
Hey Peter--
Still looking interpolation-y.
I ran:
where:
anat_ns.nii = high res whole-brain anatomical without skull
t1_dyn_contrast_volreg_ave_zp_ns.nii = low res T1, zeropadded, sans skull
Results represented in attached picture. You can see that the resolution has, indeed, been defined by the low-res T1 but we still get lots of interpolation (e.g., where the zero-pad area is not zero).
Advice appreciated.
Still looking interpolation-y.
I ran:
3dAllineate -base anat_ns.nii -input t1_dyn_contrast_volreg_ave_zp_ns.nii -master t1_dyn_contrast_volreg_ave_zp_ns.nii \ -prefix t1_dyn_contrast_volreg_ave_zp_ns_al.nii -1Dmatrix_save t1_dyn_2_spgr.1D -cost mi -final wsinc5 -source_automask \ -autoweight -twopass -warp shift_rotate -verb -overwrite
where:
anat_ns.nii = high res whole-brain anatomical without skull
t1_dyn_contrast_volreg_ave_zp_ns.nii = low res T1, zeropadded, sans skull
Results represented in attached picture. You can see that the resolution has, indeed, been defined by the low-res T1 but we still get lots of interpolation (e.g., where the zero-pad area is not zero).
Advice appreciated.
