[vtkusers] Construct mesh from unorganized points

[Erte Pan]

So the InputVolume means the input 3D Meta Image, Starlabel and Endlabel
are both 255?

2013/3/18 Bill Lorensen <bill.lorensen at gmail.com>

> So your label is 255.
>
> You will have to modify the example to read your tiff images.
>
>
> On Mon, Mar 18, 2013 at 4:21 PM, Erte Pan <panerte at gmail.com> wrote:
>
>> Sure. Here is one small patch I obtained from segmentation. It is a 3D
>> 8-bit gray level image of 300x300x200 voxels, with 255 represent vessel
>> signals and 0 represent background.
>>
>>
>> 2013/3/18 Bill Lorensen <bill.lorensen at gmail.com>
>>
>>> Erte,
>>>
>>> Please keep the vtk users list on the replies.
>>>
>>> You said your data was segmented. That usually means the structures of
>>> interest have numeric labels. Can you post one of your tiff images?
>>>
>>> Bill
>>>
>>>
>>> On Mon, Mar 18, 2013 at 3:59 PM, Erte Pan <panerte at gmail.com> wrote:
>>>
>>>> What are the labels in the GenerateModelsFromLabels ? Does it mean that
>>>> I have to figure out the connectivity of the tiff image before I import
>>>> them to the algorithm? In the algorithm, it says InputVolume is a meta file
>>>> containing a 3 volumes of discrete labels, do these labels mean the x,y,z
>>>> coords or something else?
>>>>
>>>>
>>>> 2013/3/18 Erte Pan <panerte at gmail.com>
>>>>
>>>>> Thanks a lot! I'll give it a try.
>>>>>
>>>>>
>>>>> 2013/3/18 Bill Lorensen <bill.lorensen at gmail.com>
>>>>>
>>>>>> You should use DiscreteMarchingCubes
>>>>>>
>>>>>> See this example:
>>>>>> http://vtk.org/Wiki/VTK/Examples/Cxx/Medical/GenerateModelsFromLabels
>>>>>>
>>>>>>
>>>>>> On Mon, Mar 18, 2013 at 3:22 PM, Erte Pan <panerte at gmail.com> wrote:
>>>>>>
>>>>>>> I got segmentation result（tiff）from hollow blood vessels. And I want
>>>>>>> to render it as mesh representation.
>>>>>>> On Mar 18, 2013 5:16 PM, "Bill Lorensen" <bill.lorensen at gmail.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> tiff describes images. There are many different ways to produce
>>>>>>>> polydata. What application problem are you trying to solve?
>>>>>>>>
>>>>>>>>
>>>>>>>> On Mon, Mar 18, 2013 at 3:12 PM, Erte Pan <panerte at gmail.com>wrote:
>>>>>>>>
>>>>>>>>> Hi Bill,
>>>>>>>>> Thank you for an instant reply. But it seems I have trouble of
>>>>>>>>> converting a tiff input into vtkpolydata. Could you tell me how can I
>>>>>>>>> achieve that? Thank you.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> 2013/3/18 Bill Lorensen <bill.lorensen at gmail.com>
>>>>>>>>>
>>>>>>>>>> One of these two examples might be helpful.
>>>>>>>>>>
>>>>>>>>>> http://vtk.org/Wiki/VTK/Examples/Cxx/Filtering/SurfaceFromUnorganizedPoints
>>>>>>>>>>
>>>>>>>>>> http://vtk.org/Wiki/VTK/Examples/Cxx/Filtering/SurfaceFromUnorganizedPointsWithPostProc
>>>>>>>>>>
>>>>>>>>>> Bill
>>>>>>>>>>
>>>>>>>>>> On Mon, Mar 18, 2013 at 2:31 PM, Erte Pan <panerte at gmail.com>wrote:
>>>>>>>>>>
>>>>>>>>>>>  Hello All,
>>>>>>>>>>>
>>>>>>>>>>> I'm a fresher to vtk. I was trying to construct a mesh rendering
>>>>>>>>>>> from unorganized segmented 3D points. However, as I tried the vtkDelaunay3D
>>>>>>>>>>> and vtkSurfaceReconstructionFilter, neither of the methods gave the correct
>>>>>>>>>>> results. The programs crushed in the end. Here's my pipeline:
>>>>>>>>>>> vtkTIFFReader------->vtkXMLPolyDataWriter----------> vtkDelaunay3D or
>>>>>>>>>>> vtkSurfaceReconstructionFilter.  But the rendering was failed. Could
>>>>>>>>>>> someone help me with this problem please? Thank you.
>>>>>>>>>>>
>>>>>>>>>>> Best regards,
>>>>>>>>>>>
>>>>>>>>>>> Erte Pan
>>>>>>>>>>>
>>>>>>>>>>> _______________________________________________
>>>>>>>>>>> Powered by www.kitware.com
>>>>>>>>>>>
>>>>>>>>>>> Visit other Kitware open-source projects at
>>>>>>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>>>>>>
>>>>>>>>>>> Please keep messages on-topic and check the VTK FAQ at:
>>>>>>>>>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>>>>>>>>>
>>>>>>>>>>> Follow this link to subscribe/unsubscribe:
>>>>>>>>>>> http://www.vtk.org/mailman/listinfo/vtkusers
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> Unpaid intern in BillsBasement at noware dot com
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Unpaid intern in BillsBasement at noware dot com
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Unpaid intern in BillsBasement at noware dot com
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Erte Pan
>>>>
>>>> PhD student in ECE Dept., UH
>>>> Bio-image Analytics Group
>>>>
>>>
>>>
>>>
>>> --
>>> Unpaid intern in BillsBasement at noware dot com
>>>
>>
>>
>>
>> --
>> Erte Pan
>>
>> PhD student in ECE Dept., UH
>> Bio-image Analytics Group
>>
>
>
>
> --
> Unpaid intern in BillsBasement at noware dot com
>



-- 
Erte Pan

PhD student in ECE Dept., UH
Bio-image Analytics Group
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20130318/2e480411/attachment.htm>