[Insight-developers] MR Segmentation

Stephen R. Aylward aylward@unc.edu
Tue, 08 Jan 2002 09:43:37 -0500


Hi,

It looks like Nils wants to segment the pelvis from CT and MR.

This should be do-able with itk now...

1) Region grow (itkRegionGrowImageFilter or
itkFuzzyConnectednessImageFilter.h)
2) morphological erosion (2cm - remove ribs)
3) morphological dilate (3cm - restore to original size + fill in marrow
holes)
4) morphological erosion (1cm - restore to original size)

The problem with abdominal MR are the intensity inhomogeneities.

Try the MRBiasFieldCorrection method and then do the above for MR (bones
being dark).

Stephen



-- 
===============================================
Dr. Stephen R. Aylward
Assistant Professor of Radiology
Adjunct Assistant Professor of Computer Science
http://caddlab.rad.unc.edu
aylward@unc.edu
(919) 966-9695