[Insight-users] Converting dcm files to mesh

[Andriy Fedorov]

Jason,

If you need to create a triangular surface mesh with ITK, you can use
Marching Cubes algorithm implemented in this class:

http://www.itk.org/Doxygen/html/classitk_1_1BinaryMask3DMeshSource.html

You can find an example of how to use this filter in
Testing/Code/Algorithms/itkBinaryMask3DMeshSourceTest.cxx

> The image I'm trying to process it is a CT image. I am not sure what you
> mean by if it is a binary or multi-valued.

Marching cubes filter works from the segmented (binary) image, so the
first step for you will be to segment the image, but that's a
different issue. I am assuming ITK-SNAP which you mention should help
you with the segmentation task.

--
Andrey Fedorov




On Thu, Jul 17, 2008 at 3:20 PM,  <jdetata at comcast.net> wrote:
> Hi,
>
> Sorry  I wasn't very specific but I didn't know what information I needed to
> give and still a little unsure. Well as for what I am doing I am trying to
> use a program that calculates the difference between two different contours
> that are in a mesh form. I contacted the person that programmed the program
> and he said he used in house software to generate triangular meshes from
> contours. He continued to say he wasn't sure how they are generated and sent
> me a link to a paper on Surface and 3D Triangular Meshes from Planar Cross.
>
> The image I'm trying to process it is a CT image. I am not sure what you
> mean by if it is a binary or multi-valued.
>
> Hopefully I am giving a little more information.
>
> Jason
>
> P.S. Dave thanks I will checkout ITK-SNAP.
>
> -------------- Original message --------------
> From: "Andriy Fedorov" <fedorov at bwh.harvard.edu>
>
>> Hi Jason,
>>
>> You would have more chances of getting a meaningful reply, if you
>> explain in more detail what you are trying to do.
>>
>> What kind of mesh do you want to generate (surface or volume mesh, if
>> volume -- what kind of volume mesh: tet, hex etc.)?
>>
>> Do you have a binary image or multi-valued image that you are trying to
>> process?
>>
>> --
>> Andrey Fedorov
>>
>>
>>
>> > Message: 5
>> > Date: Thu, 17 Jul 2008 14:41:39 +0000
>> > From: jdetata at comcast.net
>> > Subject: [Insight-users] Converting dcm files to mesh
>> > To: insight-users at itk.org
>> > Message-ID:
>> >
>>
>> <071720081441.24866.487F5A23000C218C0000612222007348400E9B0E9B0A0B06 at comcast.net
>> >
>> >
>> > Content-Type: text/plain; charset="us-ascii"
>> >
>> > Hello,
>> >
>> > I'm pretty new to ITK and I would like to convert my dcm files to a mesh
>> > for a
>> program I am using? I have read the Software Guide's mesh section but the
>> guide
>> did not clairfy what I should do.
>> >
>> > Jason
>