Hello,
Firstly I found that I got a better segmentation with the .35mm
isotropic voxels relative to the same volume resampled to .5mm
isotropic. Secondly I am having a bit of trouble registering an
individual hemisphere to any of the new 73700 node-standard-mesh
representations of the three atlases. I am using the
Macaque.F99UA1.REGISTER-with-INDIVIDUAL.73730.spec to spherically
deform to. I have had trouble get any of the .borderproj from this
.spec file to deform to similiar (same type, number, and orientation of
landmarks) .borderproj files I create with my indivual hemisphere. I
am not sure at which level my mistakes are happening but I am getting
very high numbers of crossovers which stop me from completing
deformation. When I have the ATLAS and the individual open in separate
windows I have the same number(also confirmed by .spec file), type and
orientation(denoted by red point) in the individual as with the atlas.
I then go to deform spherical in the individual and choose the
apropriate files but I am a bit confused on which fiducial and which
.borderproj to pick for the atlas:
Fiducial Coord(choose one of following):
Macaque.ATLAS.sphere.6.ForFIDUCIAL.73730.coord
Macaque.F99UA1.RIGHT.FIDUCIAL.Std-MESH.73730.coord(I use this one)
.borderproj(I normall use a modified version of Surfs with only 14 borders)
Macaque.F99UA1.LR.AVERAGE.LANDMARKS_for_FULL-HEMISPHERE_RegWith-F6.73730.borderproj
Macaque.F99UA1.LR.AVERAGE.LANDMARKS_for_FULL-HEMISPHERE_RegWithPHT00.73730.borderproj
Macaque.F99UA1.LR.AVERAGE.LANDMARKS_Surfs-29407_29830_for_FULL-HEMISPHERE.73730.borderproj
As well I know the new landmarks are averages of left and right hemisphere
but can I use the right flat or right fiducial to deform to left
individual hemispheres. Not sure if any of this is causing all of the
crossovers I am experiencing. Thank you for your help,
John
Arsenault
