Trustworthy TCP labels depend on a complete measurement chain—not camera count alone. The system must define the TCP precisely, calibrate the physical Marker-to-TCP relationship, synchronize all sensors, preserve measurement evidence during trajectory processing, and validate results against an independent reference. Millimeter-grade performance is therefore an engineering capability that must be demonstrated under real operating conditions.

Key Takeaways

• More cameras improve observation coverage but do not prove physical accuracy.
• TCP definition, rig geometry, calibration, and hardware timing directly affect label quality.
• Low residuals and smooth trajectories indicate internal consistency—not external truth.
• Credible accuracy claims require independent, task-relevant validation and repeatable QA.

Full Report 👇

SZF_TCP_Measurement_Chain_Research.pdf