The aliasing effect is completely as expected. Images are normally
blurred prior to doing VBM, so the effect is no longer visible. It
results from pushing voxels in the original image, to their new location
(see the manual for more info). This exactly preserves the original
amount of signal, but leaves slight aliasing effects - especially if the
resolution of the original images is lower.
Best regards,
-John
Hello all,
While using the New Segment, I received odd lines appearing in the
modulated images. The image below, warped (l) and modulated warped (r),
shows what I'm receiving with SPM8 revision 3408. I've used all default
options, except for enabling the extra images types. Is this something
known that was fixed in the most recent update, a problem with using
modulation, or a bug? Any ideas appreciated.
Thanks,
Ben Wagner
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John Ashburner <[log in to unmask]>
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