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

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Daniel Glen
November 01, 2021 03:17PM
I will note that I don't really know what others do with this information. Bob had posted this previous information on the computation.

https://afni.nimh.nih.gov/afni/community/board/read.php?1,165536,165558#msg-165558

It may be that it's good enough to just get an affine warp and nonlinear warp together. One way to remove effects of rotation and translation might be to do a rigid_equiv transformation separately. Then use that rigid_equiv output as input to another animal_warper. The first will remove effects from both rotation and translation. Scaling and shearing would be applied in the second iteration and the nonlinear warping. You could compare the results as one or two steps.



Edited 1 time(s). Last edit at 11/01/2021 03:24PM by Daniel Glen.
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Subject Author Posted

transformation to use for Jacobian 3dNwarpFuncs

Doughboys November 01, 2021 09:34AM

Re: transformation to use for Jacobian 3dNwarpFuncs

Daniel Glen November 01, 2021 03:17PM

Re: transformation to use for Jacobian 3dNwarpFuncs

Doughboys November 02, 2021 11:44AM

Re: transformation to use for Jacobian 3dNwarpFuncs

ptaylor November 12, 2021 09:46AM

Re: transformation to use for Jacobian 3dNwarpFuncs

Doughboys November 12, 2021 01:31PM

Re: transformation to use for Jacobian 3dNwarpFuncs

ptaylor November 12, 2021 02:40PM

Re: transformation to use for Jacobian 3dNwarpFuncs

Daniel Glen November 12, 2021 04:26PM