[Insight-users] Registration problem.

[Luis Ibanez]

Hi Hbk,

Your email doesn't provide enough information
for us to be able to help you.


Some very basic information is missing:


  1) Are your images of the same modality ?
  2) Do your images have rotations ?
  3) Do your images have scaling changes ?
  4) What is the size of your images ?




Please do the following:



A) Read the registration Chapter on the
    ITK Softwawre Guide

   http://www.itk.org/ItkSoftwareGuide.pdf

    Chapter 8, pdf-page 339.


B) Use ImageRegistration3.cxx that will
    print out the information of the Metric
    and the transform as the iterations of
    the optimizer progress.


C) Plot curves of the Metric versus the
    iteration number,

    and translations as the iteration progress
    such as the ones illustrated in the ITK
    Software Guide in pdf-page 352.



These plots will give you clear indications
of what parameters of the registration must
be modified in order to improve the mapping
of the images.


Please let us know if you still have difficulties
after doing (A), (B) and (C).



    Regards,


      Luis



============================================

hbk wrote:

> Hi,
> I try to register lots of image.
> The images move a little distance at each time. 
> My method is the first image as fixed image, else image are moving image.
> I use example from ITK example (ImageRegistration1.cxx). 
> So I execute command line such as ImageRegistration1 image1.png
> image2.png result1.png, ImageRegistration1 image1.png image3.png
> result2.png...
> But the result images are not alignment.
> How to solve it?
> Thanks.
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