Conversion of coordinates using cs_convert

Discussions
1

Dear BrainStorm support team,

When I compare the result of the cs_convert command line and the online display of coordinates.
In this example, I used Colin27 template brain and 10-20 (19 positions) montage.
I guess I missed a step while using the Matlab command but I fail to find out which one. since the coordinates are pretty different.

Any input would be helpful, I'm sure.
Sorry for the replication of this topic.

Best,
Gaëlle.

57
571246×868 71.9 KB

38
382464×1249 392 KB

2

When using cs_convert directly, the coordinates in input must be in meters, not in millimeters.
You should use something like this:
cs_convert(sMri, ‘mni’, ‘scs’, [-53 -87 44] ./ 1000) .* 1000

See the corresponding documentation here:
http://neuroimage.usc.edu/brainstorm/CoordinateSystems#Converting_between_coordinate_systems

3

Thanks a lot.

Gaëlle.