Which motion capture system type is based on electromagnetic sensors?

The choice that identifies a motion capture system using electromagnetic sensors is AMM (Active Magnetic Motion). This system relies on electromagnetic fields generated by sensors placed on the subject's body, which detect movement through variations in these fields. The sensors communicate their position and orientation, providing precise data on the motion being captured.

In contrast, other options like Optical Infrared and OptiTrack utilize cameras and light-based sensors to track movement through visual analysis. Inertial sensors rely on accelerometers and gyroscopes to measure movement based on the subject's acceleration and rotational changes, rather than using electromagnetic fields. Therefore, recognizing the defining characteristic of AMM as an electromagnetic sensor system clears up the understanding of how different motion capture technologies operate.