AFNI Message Board

Dear AFNI users-

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

History of AFNI updates  

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July 18, 2019 03:47PM
Hi Paul-

I think much of the problem is caused by how you Z-padded the image. It looks like you were taking out slices instead of adding. My final commands to get pretty decent alignment are below. I did skull strip both anatomicals.

#strip anatomical
3dSkullStrip -input anat.nii -prefix anat_ns.nii
#z-pad low-res image
3dZeropad -I 20 -P 20 -A 20 -S 20 -L 20 -R 20 -prefix T1_ZP.nii t1_dyn_contrast_acq4.nii
#now skull strip that low-res image
3dSkullStrip -prefix T1_ZP_ss.nii -input T1_ZP.nii
#move low-res image center back
3drefit -dzorigin 20 T1_ZP_ss.nii

#perform alignment with MutualInfo because of low contrast in image
3dAllineate -base anat_ns.nii -input T1_ZP_ss.nii -master anat_ns.nii -prefix spgr_al.nii \
-1Dmatrix_save spgr_to_t1_dyn.1D -cost mi -final wsinc5 -source_automask \
-autoweight -twopass -warp shift_rotate -verb -overwrite





Edited 3 time(s). Last edit at 07/18/2019 04:02PM by Peter Molfese.
Subject Author Posted

partial coverage alignment Attachments

ruyuanzhang June 17, 2019 12:29PM

Re: partial coverage alignment

ptaylor June 17, 2019 01:33PM

Re: partial coverage alignment

ruyuanzhang June 17, 2019 03:07PM

Re: partial coverage alignment

ptaylor June 17, 2019 07:39PM

Re: partial coverage alignment

Peter Molfese June 20, 2019 05:11PM

Re: partial coverage alignment

ruyuanzhang June 21, 2019 01:29PM

Re: partial coverage alignment

ptaylor June 21, 2019 01:51PM

Re: partial coverage alignment

Peter Molfese June 21, 2019 02:05PM

Re: partial coverage alignment

ruyuanzhang June 21, 2019 03:11PM

Re: partial coverage alignment

ruyuanzhang June 27, 2019 03:40PM

Re: partial coverage alignment

Peter Molfese June 27, 2019 04:07PM

Re: partial coverage alignment

ruyuanzhang June 27, 2019 04:57PM

Re: partial coverage alignment

Peter Molfese July 01, 2019 10:20AM

Re: partial coverage alignment

ruyuanzhang July 08, 2019 03:36PM

Re: partial coverage alignment

paul.hamilton July 03, 2019 03:40PM

Re: partial coverage alignment

Peter Molfese July 04, 2019 10:29AM

Re: partial coverage alignment

paul.hamilton July 13, 2019 08:27AM

Re: partial coverage alignment

Peter Molfese July 15, 2019 02:42PM

Re: partial coverage alignment

paul.hamilton July 17, 2019 11:31AM

Re: partial coverage alignment

Peter Molfese July 18, 2019 03:47PM

Re: partial coverage alignment

paul.hamilton July 23, 2019 09:34AM

Re: partial coverage alignment

paul.hamilton July 23, 2019 10:31AM

Re: partial coverage alignment

Peter Molfese July 23, 2019 10:46AM

Re: partial coverage alignment

paul.hamilton July 24, 2019 03:39PM

Re: partial coverage alignment Attachments

paul.hamilton August 05, 2019 09:10AM