[Camino-users] RESTORE question

[Philip A Cook]

Hi,

It can be a bad sign if it happens often. Are you using a brain mask? If not then adding that will likely cut down the number of errors.


On Jul 11, 2014, at 11:52 AM, Ryan Muetzel <muet0005 at gmail.com> wrote:

> Hello,
> 
> I'm interested in using the camino software to process some of our DTI data, specifically to compute the tensor using the restore method.
> 
> I've followed the tutorial on the website for using the restore method.  The algorithm completes and writes out the proper data.  I am using the 2nd method for estimating sigma (from estimatesnr, sigma_mult from the b=0 images).
> 
> However, I see this message:
> 
> "inverters.RestoreDT_Inversion invert"
> "Maximum iterations reached without convergence. Final tensor:"
> 
> Is this message a problem?  I was initially worried the algorithm was falling back on the OLS/WLS method, but that doesn't appear to be the case (I see that warning message when I reduce the sigma substantially).  The FA maps look very reasonable, and quite similar to the output from FSLs dtifit/wls method.
> 
> Thanks in advance for any information! 
> 
> All the best,
> 
> Ryan
> 
> 
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