 |
 |
Dear Ying,
If there was a "better" (how ever you define this betterness) measure of the match between a pair of images, this measure should actually be employed to match the images instead of using a "less good one". :-)
Visual check just ensures that the realignment/coregistration did not completely go wrong. You can automatize this by generating CheckReg images and saving them in different pictures or create a movie of them all. This saves the hassle of manually clicking for each image. For the realignment what matters really is the volume-to-volume displacement, i.e. speed, so you could derive a (few) scalar(s) to summarize this over the whole time series. I am sure there are some tools out there already calculating this kind of measure.
HTH,
Chris
Hi SPM experts,
I found the method of checking registration manually with the naked eye (by pressing the 'Check Reg' button on SPM GUI) is very inaccurate and difficult.
Do you know SPM functions or the other functions which can automatically evaluate the quality of the alignment between functional images, or the registration between anatomy and functional images?Or do you know more accurate and easier ways to check registration?
Best Regards,
Ying