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

Atul sharmaatul11 at gmail.com
Mon Aug 10 11:21:27 EDT 2015


There were some error in my code. After correction I  could make the system with optical tracker too.
Thanks,
Atul 

Sent from my iPhone

> On Aug 10, 2015, at 4:06 PM, Atul Kumar <sharmaatul11 at gmail.com> wrote:
> 
> 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]> 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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