Unique subjects

For a unique identification of multiple subjects you must make a separate AIM model for each subject. Follow the process below to generate and apply the AIM models. For more information on how to generate and apply AIM models see Generating an AIM model and Applying an AIM model . If you already have a generic AIM model, which you want to use to create new AIM models for unique subjects, see chapter Use generic AIM model to create unique models.

Make sure that each subject has a unique marker configuration. If you have similar types of subjects (e.g. multiple actors), you can use a different marker pattern to distinguish the subjects, for example by placing four markers on the chest in different patterns.
Make sure that the label names of the subjects are different so that QTM can identify the labels when you add measurements to the AIM models.
Create an AIM model for each subject. This can be done per subject as described in Generating an AIM model. Alternatively, you can generate the AIM models using a single measurement with multiple subjects as follows.
- Make a Range Of Motion (ROM) measurement with all subjects simultaneously.
- Label the markers per subject as described in Manual identification of trajectories.
- Select the trajectories of one subject in the 3D view or the trajectory list, right-click on the selection and click Generate AIM model from selected trajectories....
- Generate the AIM model as described in chapter Generating an AIM model
- Repeat step b. to d. for every subject.
To apply multiple AIM models to a measurement you must add them to the Applied models list on the AIM page in the Project options dialog.

When you create a new AIM model all of the other models in the list are moved to the Previously used models list.
You can add data to multiple AIM models from a single measurement by selecting the applicable AIM models under the Add to existing model(s) option. The data will then be added to the AIM model(s) with matching label names.