Dear MITK developers,
it would be nice if you could give me a little update about the status
of my patch. Unfortunately I didn't get any feedback so far.
Best regards,
Matthias
Matthias Keil schrieb:
Dear MITK developers,
I am working quite a lot with the QmitkRigidRegistration widget. I was
playing around a bit with the different metrics and optimizers
included in the functionality. I did so by decomposing a given
translation into its x, y and z component. Registration worked out
quite well for these easy given tasks (translating by 2 mm along each
axis).
Unfortunately there seems to be an error in displaying the
registration results and optimization steps. I attached a .zip file to
visualize this error. The calculations done for the registration are
correct, as you can see from the output windows (amount of translation
is exact and mean squares metric has value 0). The error that occurs
is that a translation in x direction results in a translation in z
direction in the visualization and vice versa.
I think that the error must be somewhere in the following function:
QmitkRigidRegistrationSelector::SetOptimizerValue
which is called for each optimizer step. I do not think that this
error is limited to the translation transform case only, but is more
systematically. Therefore I think that something might be wrong in the
last part of the function, where the m_movingGeometry member is
calculated.
Unfortunately I am not that experienced with the given transformations
and changes between ITK and VTK yet.
I am looking forward to hearing from you!
Best wishes,
Matthias Keil
--
| Dipl.-Ing. Matthias Keil
|
| Fraunhofer Institute for Computer Graphics (IGD)
| Cognitive Computing & Medical Imaging
| Fraunhoferstraße 5, 64283 Darmstadt, Germany
|
| phone : +49.6151.155.212
| fax : +49.6151.155.480
| e-mail : [EMAIL PROTECTED]
| skype : matthias.keil.office
| web : http://www.igd.fraunhofer.de/~makeil
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--
| Dipl.-Ing. Matthias Keil
|
| Fraunhofer Institute for Computer Graphics (IGD)
| Cognitive Computing & Medical Imaging
| Fraunhoferstraße 5, 64283 Darmstadt, Germany
|
| phone : +49.6151.155.212
| fax : +49.6151.155.480
| e-mail : [EMAIL PROTECTED]
| skype : matthias.keil.office
| web : http://www.igd.fraunhofer.de/~makeil
-------------------------------------------------------------------------
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Build the coolest Linux based applications with Moblin SDK & win great prizes
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http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
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