[Mrtrix-discussion] tracks2prob failed

[Andrew Bock]

Hi Rob,

I found the source of the error, there was an issue with the orientation of
the diffusion gradients in the DW scheme.

Andrew

On Thu, May 31, 2012 at 7:15 PM, Robert Smith <r.smith at brain.org.au> wrote:

> Hi Andrew
>
> That's a strange error to be getting 1/3 of the way through your data set.
> Essentially what it's telling me is that the streamline's position in the
> TDI image is *not* a finite number (e.g. infinite or something weird like
> that).
>
> Firstly, have you tested the reproducibility of the error? Can you run the
> same tracking command, making a new .tck file with the same number of
> streamlines, and get the same error from tracks2prob?
> There's a chance that if streamtrack was terminated abruptly, or if
> another program you had running at the time had a memory leak, your
> streamlines data is corrupt.
>
> If you're still getting the same error, could you please re-run the
> tracks2prob command with the -debug option enabled, and copy & paste what
> the console output gives you.
>
> Cheers
> Rob
>
> --
>
> Robert Smith
> Melbourne Brain Centre
> 245 Burgundy Street
> Heidelberg VIC 3084
> Telephone: (+61 3) 9035 7128
> Fax: (+61 3) 9035 7301
> Email:  r.smith at brain.org.au
> www.florey.edu.au <http://www.fni.edu.au>        www.brain.org.au
>
>
>
> On Fri, Jun 1, 2012 at 7:50 AM, Andrew Bock <abock at u.washington.edu>wrote:
>
>> Hello,
>>
>> I am attempting to generate a high-resolution track density image, and
>> have run the following commands:
>>
>> streamtrack SD_PROB con1.CSD8.mif -seed con1.DTI.mask.mif -mask
>> con1.DTI.mask.mif -grad con1.DWscheme.b -step 0.1 con1.whole_brain.tck -num
>> 1000000
>>
>> tracks2prob con1.whole_brain.tck -vox 0.5 con1.tdi.mif
>>
>>
>> However, I receive the following error when running tracks2prob:
>>
>> tracks2prob: creating new template image...   - ok
>> tracks2prob: mapping tracks to image...   33%tracks2prob:
>> cmd/tracks2prob.cpp:132: Voxel::Voxel(const MR::Point&): Assertion `finite
>> (p[0]) && finite (p[1]) && finite (p[2])' failed.
>> Aborted
>>
>> Any suggestions?
>>
>> Andrew
>>
>>
>>
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>>
>>
>
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