On Thu, 2009-06-25 at 14:51 +0200, Chiara Riccobene wrote: > Hi mitk-users! > > In my lab we're planning to implement a manual segmentation on reoriented > slices, we would like to know if you're are also developing something similar > or if you plan to do it in the future. > > We think that we could implement something similar to mitk::Seg2dTool where > instead of looking for the pixel in the current slice we will look for the > pixel in the working volume image (working data), the most complicated part I > think would be the filling of this 3d contour in the volume image. > > Do you have any idea of how to do that? Did you already implement something > similar? > > thank you very much in advance for your attention > regards > > Chiara Riccobene
Dear Chiara, the tool you describe would be very valuable indeed. Especially colleagues working with MR images are asking for something like that. About the implementation idea, I would prefer to change mitk::SegTool2D in a way that it can cope with reoriented slices. I know that the current implementation is missing a concept for this, but we could change that. The simple part in implementation would be to extract a 2D slice from the 3D volume -- the 2D rendering does that and VTK provides a flexible filter for reslicing. The harder part will be to "write back" 2D slices to a 3D volume. When this is done for a single slice, I see no problem (only a minor definition problem of how thick the slice is). However, if you do that for consecutive (reoriented) slices, I an not really sure how you can guarantee that you do not generate single pixel holes in structures that you wanted to segment as a block. One solution could be to define slice thickness larger than slice offset. To answer your question clearly: nobody here is currently working on this issue and I am not aware of plans to do so. But as I mentioned, there is definitely a demand for this feature, so I would support integrating changes towards this direction. If you have suggestions for required changes, please feel free to send them in and start a discussion. Would you be willing and able to contribute these changes to MITK? Kind regards Daniel -- Dipl.-Inform. Med. Daniel Maleike Phone: +49 6221 42 2326 Deutsches Krebsforschungszentrum Im Neuenheimer Feld 280 Medical and Biological Informatics (E130) 69120 Heidelberg ------------------------------------------------------------------------------ _______________________________________________ mitk-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mitk-users
