Hi Charlie,
There is a possibility: select an arbitrary region from the preview list (or
any combination of regions), and save the segmentation from the Binary_Preview
data node which can then be found in the data manager. The segmentation is
updated for changing selections, so you can repeat the process for all regions
of interest.
For increasing numbers of regions, computation time becomes excessive indeed.
For more insight to that, you can have a look at the
itk::OtsuMultipleThresholdsImageFilter implementation.
Best regards, Tobias
Von: Charlotte Debus [mailto:[email protected]]
Gesendet: Dienstag, 31. März 2015 14:21
An: [email protected]
Betreff: [mitk-users] Question concerning Otsu Threshold segmentation
Hi everybody,
I have a question concerning the Otsu threshold tool: Is there a possibility
to save all calculated regions? Currently, if I segment into lets say 4
regions, I can only confirm the segmentation for one region, but the the other
regions are lost. I want to segment a Head&Neck CT into different Tissue types
and then calculate the Mean HU of every segment. But this way, i have to run
the Otsu threshold for each tissue again.
Furthermore, if i choose more than 7 regions, the calculation time goes mad,
after 2 hours its still not finished. Is there something I can do about this?
Cheers Charlie
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