[Neuroimaging] Aligning low and high resolution images in voxel space

Greg Kiar gkiar07 at gmail.com
Tue Dec 1 12:55:30 EST 2015


I'm working with various parcellations of the brain which have been defined
at a 3mm resolution, though my data exists in a 1mm space (the MNI152
space). When opening these images with a nifti viewer it is fine as the
affine transform maps them properly to scale. However, when I'm working
with data in python I would like my labels defined at 3mm to be in the
MNI152 space (that they also overlap in voxel space, as well). I would like
to write a script that "ingests" a low resolution (3mm) atlas into the 1mm
MNI152 space, and nearest-neighbor interpolates values not defined, if you
will. Do you know how I can easily do this?

Thanks so much,
Greg Kiar <gkiar07 at gmail.com>
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