How to Use the GUI
To launch the IMU IK Tool:
Select Tools → IMU Inverse Kinematics... from the OpenSim main menu bar.
The Settings pane is used to specify parameters related to the IMU data.
Data Transformation pane describes how to transform sensor data to OpenSim coordinate system.
The IK trial pane is used to specify the sensor weights used in the weighted least squares equation and the time range to solve.
Output pane describes where to store resulting motion if desired.
The IMU Inverse Kinematics Tool window, like all other OpenSim tools, operates on the current model. Any model can be made the current model by right-clicking on its name and selecting Make Current.
The Control Panel
At the bottom of all the Tool dialog windows are four buttons, located in what we call the Control Panel.
Note that the Close button can be clicked immediately after execution has begun; the execution will complete even though the window has been closed.
The Settings pane is used to specify parameters related to the running Inverse Kinematics on IMU data. The pane is organized into three main sections:
The weights panel pops up when the user clicks the "Weights..." button and it displays the list of available sensors and corresponding weights.
|Weights default to equal values of 1 for all sensors but users can adjust the weights, in particular if the user has less confidence in a specific sensor, the corresponding weight should be reduced. Using a weight of 0 tells the solver to ignore the corresponding Sensor/IMU.|