# transform file register.lta # created by nmrclass on Fri Feb 10 18:37:21 2017 type = 0 # LINEAR_VOX_TO_VOX nxforms = 1 mean = 0.0000 0.0000 0.0000 sigma = 10000.0000 1 4 4 3.431372642517090e+00 -2.051215618848801e-01 -4.745870828628540e-03 2.7534584045 41016e+01 4.565358161926270e-03 1.446578502655029e-01 -3.996454238891602e+00 1.58296142578 1250e+02 -2.051111757755280e-01 -3.428324222564697e+00 -1.683440804481506e-01 2.647823486 328125e+02 0.000000000000000e+00 0.000000000000000e+00 0.000000000000000e+00 1.000000000000 000e+00 src volume info valid = 1 # volume info valid filename = /home/nmrclass/tutorial_data/buckner_data/tutorial_subjs/multimodal/f mri/fbirn-101/template.nii volume = 64 64 35 voxelsize = 3.437500000000000e+00 3.437499761581421e+00 4.000000000000000e+00 xras = -9.972996711730957e-01 -7.120382040739059e-02 1.798351481556892e-02 yras = 6.254287064075470e-02 -9.518167972564697e-01 -3.002218902111053e-01 zras = 3.849399834871292e-02 -2.982859909534454e-01 9.537000060081482e-01 cras = 1.612358093261719e+00 1.616348266601562e+00 4.727973937988281e+00 dst volume info valid = 1 # volume info valid filename = /home/nmrclass/tutorial_data/buckner_data/tutorial_subjs/fbirn-anat-1 01.v4/mri/orig.mgz volume = 256 256 256 voxelsize = 1.000000000000000e+00 1.000000000000000e+00 1.000000000000000e+00 xras = -1.000000000000000e+00 0.000000000000000e+00 0.000000000000000e+00 yras = 0.000000000000000e+00 0.000000000000000e+00 -1.000000000000000e+00 zras = 0.000000000000000e+00 1.000000000000000e+00 0.000000000000000e+00 cras = 0.000000000000000e+00 0.000000000000000e+00 0.000000000000000e+00 subject fbirn-anat-101.v4 fscale 0.100000
The matrix (starting with 3.4375 ...) is the registration matrix. xras is the direction cosines for the column direction (in scanner RAS coordinates). yras and zras are the direction cosines for the row and slice directions. cras is the center of the volume in RAS coordinates. The first set of parameters is for the source volume. The second set is for the target volume.