Dear AFNI experts,

I am interested in getting single coordinates from a template (e.g., MNI) space into individual subject space in approximately the same spatial/anatomical location.

This process will need to take about 20 mins or less.

My idea is to compute a non-linear warp from individual space to the template, and then use the inverse warp from this to convert single coordinates in template space to individual space.

3dQwarp is too slow so I will likely not use it. Is my best option then to simply talairach (e.g., via auto_tlrc), or is there a faster non-linear option?

Once I have used a warping procedure, is there a way to compute an inverse warp and then use that warp to convert single coordinates from the template to the individual? I am most interested in warping single coordinates and not whole-brain images as, if possible, this should be *much* faster.

Any ideas are appreciated,

Matthew