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<DIV dir=ltr><FONT face=Verdana color=#000000 size=2>Dear All <BR><BR>We performed affine image registration using the itk image registration pipeline. As result we got the 16 parameters from the itkAffineTransformation. Now, we would like to feed this transformation matrix to vtkTransform and apply the transformation to a polydata model using vtkTransformPolyDataFilter. The 3D-model has been generated using vtkMarchingCubeFilter using exactly the same image volume we used for image registration as the moving volume. Both image volumes feed to the registration pipeline have been centered on global 0,0,0 coordinate in a preprocessing step (before generating the 3D-moving model). <BR><BR>Our current problem is that the 16 parameters copied from itkAffineTransform to vtkTransform do not result into the same transformation of the 3D-modell than of the image volume. <BR><BR>Any help would be appreciated - Peter & Sabine.</FONT></DIV>
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<DIV><FONT face=Arial color=#000000 size=2>------------------------------------</FONT></DIV>
<DIV><FONT face=Arial color=#000000 size=2>Peter Böttcher, Dr med vet habil, DipECVS</FONT></DIV>
<DIV><FONT face=Arial color=#000000 size=2><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">European Veterinary Specialist in Surgery</SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial color=#000000 size=2><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Fachtierarzt für Kleintierchirurgie</SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial color=#000000 size=2><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT></FONT><FONT face=Arial><FONT size=2>Klinik für Kleintiere</FONT> <BR><FONT size=2>Universität Leipzig</FONT> <BR><FONT size=2>An den Tierkliniken 23</FONT> <BR><FONT size=2>D-04103 Leipzig (Germany)</FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2>Tel: +49-341-9738700</FONT> <BR><FONT size=2>Fax: +49-341-9738799</FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2>email: <A href="mailto:boettcher@kleintierklinik.uni-leipzig.de">boettcher@kleintierklinik.uni-leipzig.de</A></FONT><BR></FONT></DIV></DIV></BODY></HTML>