[Camino-users] newbie question

[Alexandra Badea]

Greetings!

Thank you for sharing the camino tools! I have tried to follow the tutorial for tracking and use the test data provided. I have used itksnap to generate a rather rough ROI and then called track, when I get warnings like these:

1.
Processing seed 502 of 1275optimizers.MarquardtMinimiserException: Infinite objective function in mrqcof.
optimizers.MarquardtMinimiserException: Infinite objective function in mrqcof.
optimizers.MarquardtMinimiserException: Infinite objective function in mrqcof.


And
2.

optimizers.MarquardtMinimiserException: Singular Matrix in gaussj - 2


I would very much appreciate your help in understanding this messages, and if there is something I can do about it!
I have the feeling it might have to do with ROI definition...

With best wishes & Many thanks!

Alexandra

****
PS: attaching the call to track:

rhodos:alexplay alex$ /Applications/SegmentationSoftware/camino-code-163f67cbf550560aa351b3d0a3bbbd7a22863cb4/bin/track -inputfile dwi.Bfloat -inputmodel bayesdirac -schemefile 4Ddwi_b1000_bvector.scheme -iterations 50 -seedfile /Volumes/alex_home/braindata/camino_testdata/example_dwi/brain_mask.nii.gz > bayesianTracts.Bfloat

Dec 11, 2014 2:00:02 PM apps.StreamlineTractography initVariables
INFO: Defining input physical space from seed file
Dec 11, 2014 2:00:07 PM tractography.BayesDiracRandomizer <init>
INFO: Allocating space to cache 56162 likelihood functions
Processing ROI 1 of 1



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