[vtkusers] Re:vtkusers digest, Vol 1 #2371 - 6 msgs

Long ZHANG zhanglong99 at tsinghua.org.cn
Tue Feb 10 19:57:13 EST 2004


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>Today's Topics:
>
>   1. Why I can't add another Actor in the Medical1.cxx(Medical Example)
(S.Joung)
>   2. visualization of MRI dicom images (=?iso-8859-1?q?s=20y?=)
>   3. (no subject) (=?iso-8859-1?q?megha=20agarwal?=)
>   4. using MultiThreader , more info (reyes mauricio)
>   5. Re: Genarating Multiple Streamlines on 2-D Plane. (Jean M. Favre)
>   6. RE: Pick point on the surface (de Boer Ingo)
>
>--__--__--
>
>Message: 1
>Date: Tue, 10 Feb 2004 15:37:43 +0900 (KST)
>To: vtkusers at vtk.org
>From: "S.Joung" <shjoung at miki.pe.u-tokyo.ac.jp>
>Subject: [vtkusers] Why I can't add another Actor in the Medical1.cxx(Medical
Example)
>
>I try add a vtkSphereSource actor to render in the Medical example.
>But I couln't see a vtkSphereSource actor.
>What is problem?
>
>--__--__--
>
>Message: 2
>Date: Tue, 10 Feb 2004 15:12:26 +0800 (CST)
>From: =?iso-8859-1?q?s=20y?= <superhashbrown at yahoo.com.sg>
>To: vtkusers at vtk.org
>Subject: [vtkusers] visualization of MRI dicom images
>
>Hi to all,
> 
>i have a dataset of cardiac MR images in dicom format (with MR tagging) which
consists of short and long axis slices for the whole of the cardiac cycle
>my objective is to reconstruct the volume of the heart (or a FEM model of it) so
as to view and analyse the deformation of the heart during the cycle.  
> 
>i've built vtk, itk and fltk. However, i'm not sure what are the tools to use and
how to go about it.
> 
>should i use itk to segment and registrate the images slice by slice for each
instance first, then use vtk to render it, or are there any better ways to do it
with vtk and itk?
>
There are both 2D and 3D approaches on registration and segmentation of medical
imaging implemented in ITK. To begin with, follow the instruction in
ItkSoftwareGuide.pdf on how to registrate and segment. The ITK use a registration
framework to registrate images, and there are many choices on each step. To
segement, ITK implements both region based and edge base algorithms. 

The VTK provides both volume rendering and surface rendering for volume data. But
VTK only implements Ray Casting and Marching Cube algorithms. If you want to use
other algorithms, as I know, there is implementation of ShearWarp algorithms and
will soon be ShellSplatter algorithms on VTK.

Hope it helps!
>any suggestions or advices are welcome
>Thanks
> 
>regards
>jason
> 
> 
>
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