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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October 24, 2014 01:41PM
Hi Rick,

> Censoring outliers is done in afni_proc.py using the -censor_outliers option.
I have done this. I used the output of 3dvolreg to make a censor file.

> But if it is just one part of the brain that shows the outliers,
My question is: Is volreg able determine misalignments in part of the brain? That's what my "diff map" is showing.

> what would you want to do?
Perhaps I can use the the mean values across the entie "diff map" at each volume to determine if that TR has a neighboring, mis-aligned parital volume. I can create a censor motion file for these volumes and one or perhaps two volumes on either side.

Essentially, I want to create a censor file to use with -censor_outliers, but create that file from scanning for partial volume mis-alignments.

I think it's possible, but would be a waste of time if volreg is picking up this kind of partial volume mis-alignment.

Thanks, Peter
Subject Author Posted

partial image motion and corrections

PeterK October 23, 2014 08:37PM

Re: partial image motion and corrections

rick reynolds October 24, 2014 12:11PM

Re: partial image motion and corrections

PeterK October 24, 2014 01:41PM

Re: partial image motion and corrections

rick reynolds October 24, 2014 02:20PM