[vtkusers] SynchroGrab4D, vtk Polaris tracking

Tom Pheiffer thomas.s.pheiffer at vanderbilt.edu
Mon Jul 25 15:53:41 EDT 2011


Hi vtkusers,

Lai: I wanted to update you on my progress with Synchrograb4D. I am able to
communicate with my Polaris just fine through the vtkNDITracking classes
(thanks to David Gobbi pointing me in the right direction).

I've started looking at the video capture part of the code now. I see what
you meant when you said the CMake files do not include the
vtkWin32VideoSource2 class. I've tried altering the CMakeLists file for the
RobartsVideo directory to include the correct files, but I keep running into
linking errors when I go to compile the project in Visual Studio. Do you
remember what you had to do to the CMake file(s) in order for that class to
be included correctly?

Thanks,

Tom

On Tue, Jul 19, 2011 at 9:34 AM, Elvis Chen <elvis.chen at gmail.com> wrote:

> Dr. Purang Abolmaesumi of UBC has a group of students who still actively
> uses SynchroGrab (not SynchroGrab4D).  To get an explanation of the xml file
> format, you may want to contact him directly.
>
>
>
>
> On Tue, Jul 19, 2011 at 9:47 AM, Tom Pheiffer <
> thomas.s.pheiffer at vanderbilt.edu> wrote:
>
>> 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
>>>
>>> --
>>> View this message in context:
>>> http://vtk.1045678.n5.nabble.com/SynchroGrab4D-vtk-Polaris-tracking-tp4600704p4611405.html
>>> Sent from the VTK - Users mailing list archive at Nabble.com.
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>>
>>
>>
>> --
>> Thomas Pheiffer
>> Graduate Student
>> Biomedical Modeling Laboratory
>> Department of Biomedical Engineering
>> Vanderbilt University
>> Office: 5912 Stevenson Center
>>
>>
>> _______________________________________________
>> 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
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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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