Hello openvibe community,
I have a question to the toppgraphic-map.xml file.
The algorithm displays the EEG-Signals of the bci-motor-imagery.ov file. I can understand that you can calculate the biopotential between two of the ten+1 electrodes(marked area). But how is it possible to calculate the potential outside of the red area? I mean, there is no recorded data for it.
best regards
Bob
box tutorial topographic-map
box tutorial topographic-map
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Re: box tutorial topographic-map
Hi bob,
The topographic maps use interpolation to compute a value for each area of the map.
Different interpolation methods exist, here we use Spline interpolation.
Laurent
The topographic maps use interpolation to compute a value for each area of the map.
Different interpolation methods exist, here we use Spline interpolation.
Laurent
Re: box tutorial topographic-map
Thank you, Laurent.
But do you mean extrapolation?
But do you mean extrapolation?
Re: box tutorial topographic-map
Dear Bob,
This is indeed extrapolation and should be considered with care, but I believe you already know that.
Hoep this helps,
Yann
This is indeed extrapolation and should be considered with care, but I believe you already know that.
Hoep this helps,
Yann