[Insight-users] A new version of InsightApplications/ImageRegistration2D

Lino Ramirez ramirez at ece.ualberta.ca
Sun Dec 26 14:53:05 EST 2004


Good Afternoon,

I was looking for an application for doing tutorials for High School and
undergraduate students. I decided to go with ImageRegistration2D but this
application has the same problems that Luis Ibanez pointed out for the
ImageRegistration application

"This application is unfortunately quite missleading. (we should probably
remove it from the repository). It is only illustrating how to put
together all the components of the registration framework.  They are not
fine tunned for working together, so it will be useless to attempt to
perform a real registration with this application."

http://public.kitware.com/pipermail/insight-users/2004-May/008516.html

So, I decided to make a couple of changes:
* I added the possibility of applying a rigid transformation and additive
noise to the moving image (it is for tutorials, so you could have the same
fixed and moving image, then you apply a rigid transformation to the
moving image and try to recover the transformation using image
registration).

* I decided to use only 2 types of similarity metrics (Normalized Mutual
Information and Mean Squares)

* I added the option of setting the parameters of the optimizer
(RegularStepGradientDescent)

* I added the mixed channel view to display the registration results

The new version is available at
http://www.ece.ualberta.ca/~ramirez/itk/InsightApplications/NewImageRegistration2D/

If you think it could be useful to new ITK users, I would like to
contribute it to the Toolkit.

Have a nice day,

Lino



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