[FieldTrip] BTI to MNI coordination

[mehdy dousty]

Thanks for the answer. I am going to volumelookup the predefined
sourcemodel which is provided by HCP, MEG_anatomy_sourcemodel_3d6mm.mat, to
the ROI_MNI_V4, as the atlas has the MNI coordination systema and the
sourcemodel has the bti coordinations system and there is no transform
function in the sourcmodel to convert  bti to mni, what is your suggestion
to do so?
Thanks

On Sun, Nov 6, 2016 at 1:02 PM Schoffelen, J.M. (Jan Mathijs) <
jan.schoffelen at donders.ru.nl> wrote:

> ft_convert_coorsys is not accurate. Don’t use it if you want an accurate
> conversion.
> Best,
> Jan-Mathijs
>
> On 06 Nov 2016, at 19:39, mehdy dousty <mehdy.dousty at gmail.com> wrote:
>
> Thanks for the answer. how accurate to use ft_convert_coordsys (source,
> 'spm'), and if it is not, as there is no explanation on wiki unfortunately,
> how can I make this conversion .
> Thanks
> Mehdy
>
> On Sun, Nov 6, 2016 at 8:22 AM Pelt, S. van (Stan) <
> stan.vanpelt at donders.ru.nl> wrote:
>
> Hi Mehdy,
>
> You should use bti2spm for this. You can find more specific information on
> this on the HCP wiki website.
>
> Hope that helps.
>
> Stan
>
> > Op 6 nov. 2016, om 00:51 heeft mehdy dousty <mehdy.dousty at gmail.com>
> het volgende geschreven:
> >
> > Hello all,
> > The provided head model (MEG_anatomy_sourcemodel_3d6mm.mat) in the HCP
> (Human connectome project) has a 'BTI' coordination system. As I am going
> to parcellate the data by an atlas which has a coordination system of
> "MNI", and could not find any transformation between BTI and MNI, I am
> wondering if anybody knows what are my steps to do so?
> > Thanks
> > Mehdy
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>
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