Abstract
The aim of this study was to select an appropriate computational method for determining both spin axis direction, and spin rate during soccer ball flight. Calculation methods of Cross-Product (CP) and Singular Value Decomposition (SVD) were compared on a stationary spinning ball under laboratory conditions, using data collected from 10 Vicon MX cameras tracking 5mm hemispherical ball markers at 500Hz. When the ball was spun at 371 ± 15 RPM, spin axis orientation appeared close to 'real' values, yet CP showed greater error in RPM estimation. Comparison of the methods during a kick showed no significant difference for spin rate calculation, yet CP underestimated the x and y spin axes, and overestimated spin around the z axis. It was proposed that SVD is used in future to estimate ball spin parameters, especially during kicking where marker occlusion may be more prevalent.
| Original language | English |
|---|---|
| Pages (from-to) | 1-4 |
| Journal | International Symposium on Biomechanics in Sports |
| Volume | 31 |
| Issue number | 1 |
| Publication status | Published - 2013 |
| Event | ISBS 2013: 31st International Society of Biomechanics in Sport Conference - Taipei, Taiwan Duration: 7 Jul 2013 → 11 Jul 2013 |
Keywords
- Applied Mathematics
- Biomechanics
Fingerprint
Dive into the research topics of 'Comparison of Two Methods for Calculating 3-Dimensional Ball Spin, and its Application to Soccer Kicking'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver