Add multi-origin SSS method to Maxwell Filtering #13417
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Reference issue #13339 Add multi-origin SSS method to Maxwell Filtering
Begin implementation of mSSS basis calculation.
Added function
preprocessing/fit_spheres_to_mri.pyto calculate optimized spheres based on MRI, returns centers of spheresAdded preliminary function in
preprocessing/maxwell.pycalledcombine_sss_basiswhich takes in two internal SSS matrices and combines into one internal basis.What does this implement?
Adds functionality for using SSS with on-scalp MEG sensor systems (eg OPM)
Additional information
This is a draft and need to add functionality to accept multiple origins in
maxwell.pyand add functionality to calculate multiple SSS matrices using these origins, entered from userobtained from
preprocessing/fit_spheres_to_mri.pyor otherwise. These multiple SSS matrices can then be used incombine_sss_basis. @larsoner any suggestions/comments for implementing this part would be awesome! Thanks!EDIT by @larsoner: Ref to https://iopscience.iop.org/article/10.1088/1361-6560/ade6ba