markerless tracking
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Karinne Ramirez
- Posts: 3
- Joined: Fri Jan 29, 2010 3:21 am
markerless tracking
Hi, I'm working with data obtained from markeless vision-based tracking algorithm. The obtained data are joint angles and these are store in a bvh file, can I use this data in the opensim software? or this software is only for data obtained from experimental marker? Thanks
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Ayman Habib
- Posts: 2235
- Joined: Fri Apr 01, 2005 12:24 pm
RE: markerless tracking
Hi Karinne,
The answer depends on what you want to do. The markers are used in OpenSim to do Scaling and IK. If you have experimental data and you can get your model past IK then you can do everything else without markers.
For scaling, you can use manual scaling mode (where you compute on your own, outside of OpenSim the scale factors you want applied to different segments).
IK works by minimizing the weighted sum of squared marker errors, what criteria are you planning to use?
-Ayman
The answer depends on what you want to do. The markers are used in OpenSim to do Scaling and IK. If you have experimental data and you can get your model past IK then you can do everything else without markers.
For scaling, you can use manual scaling mode (where you compute on your own, outside of OpenSim the scale factors you want applied to different segments).
IK works by minimizing the weighted sum of squared marker errors, what criteria are you planning to use?
-Ayman