I apologize for the cross posting.
I came across something after speaking with a consultant from AnyBody. One of the possible issues could be that in the experiment, we have the subject running with shoes on, which is different than the settings in the AnyBody model, where the person runs bare foot.
Have you checked the data file that it is placed as expected ?
Yes, this seems to be correct. But this marker is placed on the shoe.
Have you moved the blue marker to accommodate the position that you placed the red marker?
Yes I did. After moving the markers close, I ran the motion parametrization study.
What directions are you optimizing in the ParameterIdentificationStudy?
For the marker that looks out of place, I am not optimizing in any direction(part of the reason for doing this is that the marker was placed on the shoe).
Regarding the pelvis width, are you not scaling that based on your marker input?
We have that setting turned off in the model, which I think should be ON.
Have you removed the pelvis width from the scaling procedure?
That is correct. However, I think that the width of pelvis and length of foot must be allowed to scale based on the markers.
With regards to the other questions, here is what we are currently doing.
What tolerance are you altering?
In the Kinematics.any file;
InitialConditions.KinematicTol=1e-3; to 1e-6
Kinematics.KinematicTol=1e-3; to 1e-6
ParameterOptimization.ConvergenceTol=1e-2; to 1e-6
In the InverseDynamics.any file,
ParameterOptimization.ConvergenceTol=1e-3; to 1e-6
My understanding was that the change in SrelOpt will move the red markers(the one that come from the AnyBody model) and not the blue ones. So I was not sure if we can move them around, since they come from the experiment. Is changing SrelOpt the way to do that?