Table Tennis Ball Spin Measurement | NOKOV Motion Capture

During a table tennis rally, how can a robot accurately determine the ball’s position, trajectory, and spin?

The NOKOV Optical Motion Capture System captures high-precision, real-time 3D pose data of the table tennis ball and provides rotational data for analysis. For high-speed spinning balls, NOKOV works with FLUXEEM high-speed cameras to synchronously capture high-precision trajectory and rotational data, supporting spin measurements of up to 9,000 rpm.

How Does NOKOV Measure Table Tennis Ball Pose and Spin?

At lower spin speeds, the NOKOV Optical Motion Capture System captures high-precision, real-time pose data of the table tennis ball and provides rotational data for visualization and analysis.

The measured data can be used to visualize and analyze rotational parameters, including the Rodrigues rotation axis, angular velocity, spin rate, rotation direction, changes in the rotation axis, and relative rotation. These measurements support motion analysis and experimental validation in robotic table tennis research.

How Can High-Speed Table Tennis Ball Spin Be Measured?

For high-speed spinning balls, the NOKOV Optical Motion Capture System works together with FLUXEEM high-speed cameras to synchronously capture high-precision trajectory and rotational data. The setup supports spin measurements of up to 9,000 rpm.

By combining optical motion capture with high-speed imaging, this measurement approach can provide data to support ball tracking, spin estimation, and dynamic motion analysis in robotic table tennis research.

What Data Can Be Obtained from Table Tennis Ball Spin Measurement?

Measurement category	Available data
3D pose	High-precision, real-time ball pose data
Trajectory	High-precision ball trajectory
Rotation axis	Rodrigues rotation axis and changes in the rotation axis
Rotational speed	Angular velocity and spin rate
Rotation characteristics	Rotation direction and relative rotation
High-speed spin measurement	Up to 9,000 rpm with the NOKOV and FLUXEEM setup

FAQ

Q1: How can the spin rate and rotation axis of a table tennis ball be measured?

A2: The NOKOV Optical Motion Capture System captures real-time pose and rotational data, enabling the visualization and analysis of parameters such as the Rodrigues rotation axis, angular velocity, spin rate, and changes in the rotation axis.

Q2: Can NOKOV measure high-speed table tennis ball spin?

A2: For high-speed spinning balls, NOKOV works with FLUXEEM high-speed cameras to synchronously capture trajectory and rotational data, supporting spin measurements of up to 9,000 rpm.

Q3: Why is spin measurement important in robotic table tennis?

A3: In addition to ball position and trajectory, spin provides important information about the ball’s motion state. Pose, trajectory, and rotational measurements can support robotic ball perception, motion analysis, and experimental validation.