[FieldTrip] BTI to MNI coordination

[Schoffelen, J.M. (Jan Mathijs)]

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<mailto: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<mailto: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<mailto: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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