Hi Alfred,

thanks for your kind support on the multi-marker issue. I tried that before
I asked the question on multi-marker tools, but I didn't manage to define
such a file. I guess it was because my black parts of both markers were not
exactly aligned. I will retry to define such a file.

Best

Michael

2010/5/31 Alfred Franz <[email protected]>

> Hi Michael,
>
> you talk about a tool with two markers so I assume you talk about a so
> called "multifacet tool" (cf. MicronTracker Developer Manual). Multifacet
> tools are directly supported by the MicronTracker and accordingly also by
> MITK. But you have two define one toolfile with multiple markers (also
> called facets by claron technology) and not two toolfiles. Definition of
> multifacet tools can be done with the MicronTracker demo application by
> claron technology which is delivered with the MicronTracker. You have to
> define one facet at first, hide the other facet at this time. Then open the
> view to the second facet, klick "additional facet" and define the second
> one, also have a look at the attached screenshot to see the option. You now
> have one toolfile for a multifacet tool which you can easily use with MITK.
>
> Greets,
>
> Alfred
>
> Wegner Ingmar schrieb:
>
>>
>>
>> Hi Michael,
>>
>> yes, the world coordinate system in MITK is in mm, so the positions you
>> get are first in Microntracker coordinate space and then can be mapped to
>> mitk world coordinate space (by landmarktransform).
>>
>>
>> How does your tool look like? Your have two markers taped to it? Your tool
>> definition file should then contain the information of both markers.
>> Furthermore, did you ask for the calibration of the two cameras or for
>> tracking a tool with two markers?
>>
>> For a more detailed answer I will send the message to a colleague who is
>> expert in creating Micron Tracker tool definition files.
>>
>> Best Regards,
>>
>> Ingmar
>>
>>
>>
>> *Von:* Michael Kirches [mailto:[email protected]]
>> *Gesendet:* Mittwoch, 26. Mai 2010 14:26
>> *An:* Wegner Ingmar
>> *Cc:* [email protected]
>> *Betreff:* Re: [mitk-users] Tracking tools with multiple markers
>>
>>
>> Dear list, dear Ingmar,
>>
>> I use an optical tracking system; it is MicronTracker. I forgot to mention
>> that, sorry.
>> I'd like to add another question. What is the unit of measurement for
>> positions in space. I assume it is millimeters?
>>
>> Best regards
>>
>> Michael
>>
>> 2010/5/26 Wegner Ingmar <[email protected] <mailto:
>> [email protected]>>
>>
>>
>> Dear Michael,
>>
>>
>> to help you we need information about the kind of tracking system you are
>> using (Micron Tracker?).
>>
>>
>> Best Regards,
>>
>> Ingmar
>>
>>
>> *Von:* Michael Kirches [mailto:[email protected] <mailto:
>> [email protected]>]
>>
>> *Gesendet:* Mittwoch, 26. Mai 2010 13:53
>> *An:* [email protected] <mailto:
>> [email protected]>
>>
>> *Betreff:* [mitk-users] Tracking tools with multiple markers
>>
>>
>> Dear list,
>>
>> I want to track a tool with two markers attached to it. Since calibration
>> only works with one marker at a time, I have two calibration files. Is there
>> a possibility in MITK-IGT to define a tool that uses two calibration files,
>> or do I have to define one tool for each marker I's like to track?
>>
>> Best
>> Michael Kirches
>>
>>
>>
>>
>> --
>> Michael Kirches
>>
>>
>


-- 
Michael Kirches
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