[vtkusers] Augmented reality: Ascension technology , NDI spectra and VTK

Atul sharmaatul11 at gmail.com
Mon Aug 10 04:07:07 EDT 2015


Hi Saivash,

Thank you so much for response. I am looking into the link you sent.
However, since I could make AR with EM tracker with VTK+OpenCV, I thought
it would be easy to just replace EM tracker with optical tracker.
I guess, we need to provide NDI tools local reference frame correctly to
make proper real and virtual alignment.
It would be great if you could provide some insight into that.

Thanks for you help.

Regards,
Atul

On Mon, Aug 10, 2015 at 2:56 AM, Siavash Khallaghi [via VTK] <
ml-node+s1045678n5733368h59 at n5.nabble.com> wrote:

> Hi Atul,
>
> You are trying to solve a complicated problem that has already been
> solved. Have a look at: https://www.assembla.com/spaces/plus/wiki
>
> Siavash
>
> Sent from my iPhone
>
> > On Aug 9, 2015, at 6:18 AM, Atul <[hidden email]
> <http:///user/SendEmail.jtp?type=node&node=5733368&i=0>> wrote:
> >
> > Hi there,
> >
> > I have been trying to develop an augmented reality system using position
> > sensors and VTK. This augmented reality system would combine endoscope
> image
> > with the 3D VTK model.
> > I could successfully make an AR system with Ascension EM tracker, which
> can
> > run on a torso phantom and its 3D model. The tracking of the real and
> > virtual scenes looks good.
> > However, when I replace EM tracker with the NDI spectra optical tracker
>  in
> > the same AR system the tracking of the real and the virtual scene does
> not
> > look good (please look into the images below).
> > Do I need to do some tweak to replace EM tracker with NDI Spectra
> optical
> > tracker.
> > Any help will be highly appreciated.
> >
> > Thanks
> > Atul
> > <http://vtk.1045678.n5.nabble.com/file/n5733366/Untitled.png>
> > <http://vtk.1045678.n5.nabble.com/file/n5733366/Untitled1.png>
> >
> >
> >
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-- 
Atul Kumar
MBBS MMST  PhD
Research Fellow
IRCAD-Taiwan




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