Hi Simon, you should take a look at
http://www.vmtk.org/Main/VmtkIn3DSlicer http://www.slicer.org/slicerWiki/index.php/Modules:VMTKCenterlines This is a GUI for the Centerlines Computation as a 3D Slicer module. It is all open source so you could easily get inspired on how to get the centerlines tree: http://www.nitrc.org/plugins/scmsvn/viewcvs.php/VMTKCenterlines/?root=slicervmtklvlst Cheers, Daniel On Mon, May 23, 2011 at 2:32 AM, Simon Wilson <s.wils...@uq.edu.au> wrote: > Hi all, > > I've just started working with VMTK again after a long hiatus, and have > started integrating the C++ classes into an application. My goal is to obtain > the centreline topology, so that I can build a UI around this to allow for > interactive segmentation. > > I found the method > vtkvmtkCenterlineUtilities::FindAdjacentCenterlineGroupIds(...), which I > thought would give me the full connected tree, but it doesn't seem to work > that way. > > I have a simple structure of a single vessel that branches into two smaller > vessels in a Y-shape. From this, vtkvmtkCenterlineBranchExtractor finds a > total of 6 segments, but after calling FindAdjacentCenterlineGroupIds(), two > of these branches are "orphaned" -- they have no upstream and no downstream > groups. These both correspond to two parts of one branch, distal to the > bifurcation. > > The other oddity I've noticed is that, from the group that has the > bifurcation in it (1 upstream, 2 downstream groups), the branch which has the > two orphaned segments attaches another copy of the proximal part instead of > the orphaned branches. I've noticed there are methods within > vtkvmtkCenterlineUtilities for "unique" group IDs, but I've yet to try this > out. > > In short, how should I go about constructing the topology of the centerline? > Ideally, I just need 3 segments (the common proximal part, and the two distal > branches from the bifurcation), though I can deal with additional > "inter-bifurcation" parts if there's no other way. > > Thanks, > > Simon Wilson > ------------------------------------------------------------------------------ > What Every C/C++ and Fortran developer Should Know! > Read this article and learn how Intel has extended the reach of its > next-generation tools to help Windows* and Linux* C/C++ and Fortran > developers boost performance applications - including clusters. > http://p.sf.net/sfu/intel-dev2devmay > _______________________________________________ > vmtk-users mailing list > vmtk-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/vmtk-users > ------------------------------------------------------------------------------ What Every C/C++ and Fortran developer Should Know! Read this article and learn how Intel has extended the reach of its next-generation tools to help Windows* and Linux* C/C++ and Fortran developers boost performance applications - including clusters. http://p.sf.net/sfu/intel-dev2devmay _______________________________________________ vmtk-users mailing list vmtk-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/vmtk-users
