[Camino-users] Diffusion tenor 3 x 3

[Philip A Cook]

Hi,

To compute the eigen system you'd do something like:

  cat data.Bfloat | dtfit - scheme.file | dteig > eig.Bdouble

eig.Bdouble contains the full eigen system (values and vectors) in the format specified in the man page for dteig. They can be converted to nifti images with voxel2image, or you can extract individual bits with shredder, eg

  cat eig.Bdouble | shredder 8 24 72 | axialdistfit <options>

You might also want to look at mfrstats, which can compute statistics on ODF principal directions.



On Jul 8, 2013, at 10:15 AM, ClaireMarie Barnes wrote:

> Hi there,
>  
> I am very new to using the camino software for this purpose but basically I am testing the accuracy of my ODF reconstructions with various noise realisations. I am going to construct a scatter matrix to test for precision and accuracy and so I need the eigenvectors of my data. I have used camino to simulate the data and now need to estimate diffusion tensor and get estimates for the eigenvalues and eigenvectors. I don't want to create and image based on these. How do I go about this
>  
> Many thanks in advance as I know this is prob very straight forward
> Claire
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