EEG electrodes coordiantes

maarcc2050 · Post by **maarcc2050** » Fri Oct 29, 2010 12:56 pm

Hi.

Does anyone has the location file for the 64 bit EEG electrodes?
Basically, I need to know the exact coordinates that biosemi use for the headcap. XY coordinate or polar coordinates.

Thanks.
marc

Post by **Coen** » Fri Oct 29, 2010 2:10 pm

http://www.biosemi.com/download/Cap_coords_all.xls

Best regards, Coen (BioSemi)

maarcc2050 · Post by **maarcc2050** » Sat Oct 30, 2010 10:05 am

Thanks. I read it but dont quite get it. How do I translate it into 3D coordinates? For example, FP1 is -92 and -72. What would it be in 3D coordinate? Any pointer?

Post by **Coen** » Sat Oct 30, 2010 10:29 am

http://en.wikipedia.org/wiki/Spherical_ ... ate_system

and

viewtopic.php?t=444&highlight=coordinates

Best regards, Coen (BioSemi)