[vtkusers] SynchroGrab4D, vtk Polaris tracking

[Tom Pheiffer]

David: Thanks for your reply! I definitely see the class you are talking
about now, and I believe I will be able to get it to work. I will likely
post back here saying what I did, for those that are interested.

Lai: I'm glad to see that there is another person still actively trying to
work with this program. I saw your earlier post from a few months ago. I
just downloaded the code a few days ago and so far I've just been focusing
on getting the tracking to work. I haven't had a chance to test frame
grabbing using actual hardware. I plan on working on that sometime over the
next couple of weeks, and I will definitely post back here with any problems
or solutions I come across.

As far as the calibration file, I'm not too sure about that either. I can
see the basic structure of the xml file that is included as an example with
SynchroGrab4D (it's called "freehand_summary.xml"). I understand several of
the parameters in it (like the spatial calibration matrix), but there are
others I have no idea about. For example, I'm not really interested in using
the gating aspect of the program right now, so I'm not sure yet how to set
that in the file.

I was originally planning on just slogging through the code to see how all
the parameters are used, but if there's anyone that is already intimately
acquainted with the calibration file, it would be a huge help.

Thanks all,

Tom



On Tue, Jul 19, 2011 at 2:29 AM, khinwee <khinwee at yahoo.com> wrote:

> hi Tom,
>
> Finally i saw someone working on the same programme --->Synchrograb. For my
> case, i managed to change the video sources using win32 class for my video
> grabber, but the frame grabber must be uncompressed format and i've been
> stuck at here quite a long time ago.
>
> I am using NDI Polaris VIcra, but it is actually the same as polaris
> Spectra. Do you mind to tell me, what do you put for this line coding?
>
> defaultParams.CalibrationFileName = " ";
>
> you have the .xml file? I hope we can discuss on this topic in depth.
> Thanks.
>
> best regards,
> Lai
>
> --
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-- 
Thomas Pheiffer
Graduate Student
Biomedical Modeling Laboratory
Department of Biomedical Engineering
Vanderbilt University
Office: 5912 Stevenson Center
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