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Hi everyone,

I have a set of absolute segment angles obtained from IMU sensors, and I need to compute the marker locations using forward kinematics (FK). Could anyone guide me on how to achieve this? Is there a specific function in OpenSim that can be used for this purpose?

Any detailed instructions or examples would be greatly appreciated.

Thank you!

Please take a look at OpenSense (https://simtk.org/projects/opensense). Once you have the kinematics of the model, you could write a script to pose the model, store the location of each marker with respect to ground, and iterate over all time points.

Thank you for the suggestion! To help me understand, could you please share some detailed instructions or examples related to my use case?

Also, I'm working on verifying joint angles I obtained through inverse kinematics in OpenSim. I'd like to verify these angles using forward kinematics within OpenSim itself. Specifically, is it possible to input my calculated joint angles and perform forward kinematics to compare the resulting pose with my original data?

If so, could you point me towards the relevant functions or workflows to implement this verification process? Any assistance would be greatly appreciated!