MediaPipe Edge Discriminator (Chen et al. 2025)

Highlights

• Computes blade approach angles by projecting MediaPipe keypoints onto rink coordinates.
• Adds an audio-based toe-pick detector to disambiguate flip vs. lutz entries.
• Benchmarked on FiSV and SkatingVerse clips with human-in-the-loop auditing.

Implementation Notes

For robustness, retrain the classifier on local rink footage to capture camera placement differences. Combine with FS-Jump3D Pose Estimator outputs when depth estimates are required for ambiguous edges. The authors share the 2025 preprint privately; reach out to the corresponding author to request access and confirm the latest heuristics.