Calibration

To ensure accurate calibration of marker-based motion capture systems, two specialized accessories are utilized: the Calibration Wand and the Calibration Triangle. Each plays a crucial role in the setup process, from aligning cameras spatially to establishing the ground and coordinate system.

​

Calibration Wand

• Description: The Calibration Wand is a handheld tool equipped with a single retroreflective marker positioned at the tip.
• Function: This wand is used for the spatial alignment of the cameras within the motion capture space. By moving the wand through the capture area, the system can track the marker and accurately determine the positions and orientations of the cameras relative to each other.

​

Calibration Triangle

• Description: The Calibration Triangle is a base equipped with three retroreflective markers positioned to form a triangular shape.
• Function: This accessory is crucial for setting the ground plane and defining the coordinate system. Placing the triangle on the floor of the capture area allows the system to establish a reference plane and orient the spatial coordinates accordingly.

​

Using the Calibration Accessories

1. Wand Use:
   • Hold the Calibration Wand and move it throughout the capture area, ensuring that all cameras can see the marker at various points. This comprehensive coverage allows the software to calibrate the camera setup effectively.
2. Triangle Placement:
   • Position the Calibration Triangle on the floor where you intend to define the origin of your coordinate system. Ensure it is visible to all cameras to accurately set the ground plane and coordinate orientation.

​

Conclusion

Proper use of these calibration accessories is essential for setting up a marker-based motion capture system. The Calibration Wand helps in aligning the cameras, while the Calibration Triangle establishes a consistent ground and coordinate system. Follow the specific procedures outlined in the Moverse user manual to achieve the best results.