Hi,

i want to create a lookup table for the vertex correspondence between the subjects A & B (pial files). e.g verticesA(100) corresponds to verticesB(122)

Of course the number of vertices is different between the subjects, e.g one vertex of A can correspond to several vertices from B.

Currently, I am reading in the pial files of subject A using 'read_surf' and create two label files (lh/rh) containing all vertices. In order to get the corresponding vertices of Subject B, i use "label2label".

label file A:

#!ascii label, from subject  
142350
0 -7.814680 -88.725967 9.598738 1.000000
1 -8.505306 -88.835274 9.457685 2.000000
2 -9.234029 -89.900490 9.420641 3.000000

resulting label file:

#!ascii label  , from subject cvs_avg35_inMNI152/Segmentation vox2ras=TkReg
137427
888  -7.179  -84.047  -28.333 1.0000000000
642  -7.533  -84.272  -28.382 2.0000000000
637  -7.717  -84.612  -28.118 3.0000000000

But how can I interpret the result?

Can I assume that verticesA(0) corresponds to verticesB(888)?

Or verticesA(0) corresponds to verticesB(888)?

Or is there another way to create such a lookup table?

Thank you in advance!