[vtkusers] about DICOM orientation and vtk orientation

[Jacky Ko]

Hello,

I am using  vtkDICOMImageReader  to  read  dicom  series.  I  need to
 export  the  rendered  surface  in stl format  for  further  analysis.
However,  I  found  that the exported  surface 's  orientation  is
 different  from the  dicom  one  (e.g. loading both  dicom  series and
 STL surfaces in 3D slicer).  But  the  case  doesn't  happen in Paraview.

I noticed that  there are two options for  extracting scanning  positions
and  orientations by  GetImagePositionPatient() and
 GetImageOrientationPatient() under  vtkDICOMImageReader class.

I also  read  the  code  in  vtk-dicom  as an extension.  However,  some
problem occurs  when I am  using the package (I am developing in python).
I need to write  my  own transformation matrix and apply  to the image
volume to get a spatial corrected surfaces. The problem is ,  how to get
 the correct transformation matrix ?

Thanks.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/vtkusers/attachments/20151117/0769dafd/attachment.html>