[IGSTK-Users] 3D Reconstruction.

Mon Feb 28 14:01:20 EST 2011

Hi Patrick,

Thanks again for the reply.
Also ,please clarify one more doubt.
I went through the ITK examples .
In that there is an example which converts the set of 2D DICOM images into 
a 3D volume and saves it as a file.my question is can we read that file using some IGSTK functions 
and render that 3D in the 3D Viewer.Does this method gives a good solid 3D model?

Please clarify this issue.

Thanks,
Ashwath.

m: Patrick Cheng [cheng at isis.georgetown.edu]
Sent: Monday, February 28, 2011 9:06 PM
To: Ashwath Hegde, ERS-HCLTech
Cc: igstk-users at public.kitware.com
Subject: Re: [IGSTK-Users] 3D Reconstruction.

Hi Ashwath,

I think you are referring to the lower left image viewer. That one is
using volume rendering.

You are correct, ITK-SNAP does not have volume rendering. You can try
VolView:
http://www.kitware.com/products/volview.html

There is also an old example in IGSTKSandbox that supports volume rendering.

IGSTKSandbox/Examples/DeckOfCardRobot

The screenshot of this application is on page 330 of the book:
http://www.igstk.org/IGSTK/img/IGSTKTheBookV2.pdf

Patrick

On 2/28/2011 9:01 AM, Ashwath Hegde, ERS-HCLTech wrote:
> Hi Patrick,
>
> Thanks for the reply mail.
>
> Please find the attached image viewer screenshot.
> The 3D view in the viewer is displaying an overlay of the segmented portion as  3D segment along with the transparent head region.
>
> We have a doubt whether this kind of display is possible using ITK-SNAP.
> Kindly help us on this issue.
>
> Thanks and Regards,
> Ashwath
>
>
>
>
> -----Original Message-----
> From: Patrick Cheng [mailto:cheng at isis.georgetown.edu]
> Sent: Saturday, February 26, 2011 12:02 AM
> To: Ashwath Hegde, ERS-HCLTech
> Subject: Re: [IGSTK-Users] 3D Reconstruction.
>
> By 3D, you mean display the contour of an anatomic structure using mesh
> right?
>
> If that's the case, It think the best way is to segment in ITK-SNAP,
> save it as mesh, and then load it with igstkMeshObjectReader and display
> it. You can find some code in Navigator example for read and display the
> mesh.
>
> Patrick
>
> On 2/25/2011 1:14 PM, Ashwath Hegde, ERS-HCLTech wrote:
>> Hi Patrick ,
>>
>> Thanks a lot for the reply.
>> We have to finish the project in another 2 weeks.
>> Which one is faster:
>> To develop 3D using ITKSNAP or To develop 3D using ITK.
>> PLease advice on this.
>> Thanks ,
>> Ashwath
>>
>> ________________________________________
>> From: Patrick Cheng [cheng at isis.georgetown.edu]
>> Sent: Friday, February 25, 2011 8:08 PM
>> To: Ashwath Hegde, ERS-HCLTech
>> Cc: igstk-users at public.kitware.com
>> Subject: Re: [IGSTK-Users] 3D Reconstruction.
>>
>> Hi Ashwath,
>>
>> That's feasible. You can use IGSTK for the tracking and use OpenIGTLink
>> to send transform information to ITK-SNAP.
>>
>> http://www.na-mic.org/Wiki/index.php/OpenIGTLink
>>
>> Patrick
>>
>> On 2/25/2011 1:11 AM, Ashwath Hegde, ERS-HCLTech wrote:
>>> Hi Patrick,
>>>
>>> Thanks for the links.
>>> I will go with ITK-SNAP.Actually I have to develop a prototype GUI for image guided surgery.
>>> GUI is being developed in QT.And it involves tracking also using Polaris API's.
>>> My question is can I use ITK-SNAP libraries to display the four views(3-2d Views(Axial,Coronal,Sagittal) and 1 3D View ) using ITK-SNAP API's and use IGSTK API's for tracking purpose in the same application framework?
>>>
>>> Thanks and Regards,
>>> Ashwath.
>>>
>>>
>>> -----Original Message-----
>>> From: igstk-users-bounces at public.kitware.com [mailto:igstk-users-bounces at public.kitware.com] On Behalf Of Patrick Cheng
>>> Sent: Friday, February 25, 2011 1:48 AM
>>> To: Ashwath Hegde, ERS-HCLTech
>>> Cc: igstk-users at public.kitware.com
>>> Subject: Re: [IGSTK-Users] 3D Reconstruction.
>>>
>>> Hi Ashwath,
>>>
>>> You can try ITKSnap or 3D Slicer for segmentation, to generate 3D models
>>> from the CT images.
>>>
>>> http://www.itksnap.org
>>>
>>> http://www.slicer.org/
>>>
>>> Patrick
>>>
>>> On 2/24/2011 1:35 PM, Ashwath Hegde, ERS-HCLTech wrote:
>>>> Hi All,
>>>> I have developed a GUI in QT which has the look and feel of the
>>>> NeedleBiopsy example application given in IGSTK\Examples.
>>>> It reads a series of CT DICOM Images and displays them in 3 2d
>>>> views(axial,coronal and sagittal) and a 3D image.The 3D image is
>>>> displayed as shown in the needlebiopsy example.
>>>> But i need to develop a solid 3D model from the series of CT images.
>>>> Is it possible to do that using IGSTK libraries?
>>>> Can any body please help me on this?
>>>> Thanks ,
>>>> Ashwath
>>>>
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