Hi
A 2012 NeuroImage paper by Bandettini et al titled "Effects of image
contrast on functional MRI image registration" states the following:
"Intensity inhomogeneity corrected datasets (both EPI and MPRAGE) were
computed using the segmentation function available in SPM8
(www.fil.ion.ucl.ac.uk/spm/software). For steady-state EPI data, intensity
correction was computed based on the bias maps computed for the sixth volume
of each angle and each subject separately."
The authors are trying to correct for image inhomogeneity due primarily to
receive field and transmit field inhomogeneity.
Does anybody know which SPM function in particular the authors used and what
the algorithm is for it?
Thank you,
Daniel
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