Back to Search
Start Over
A novel method to create long capture volumes for video tracking.
- Source :
- Proceedings of the Institution of Mechanical Engineers -- Part P -- Journal of Sports Engineering & Technology; Sep2024, Vol. 238 Issue 3, p226-231, 6p
- Publication Year :
- 2024
-
Abstract
- This study examined a novel method to create a long and narrow calibrated capture volume for tracking objects. The methodology relies on the reflection of parallel distance-measuring lasers. Images of a board, blocking the lasers as it is moved through the field of interest, were assembled into a virtual calibration fixture. The method accommodates large calibration volumes and can be used with multiple cameras, providing a consistent absolute positional reference that is difficult to achieve with large mechanical calibration boards. This study considered a 17.4 m long tracking volume. A 0.9 m long rod was tracked throughout the calibrated volume where its average tracked length was within 0.2% of its measured length. The speed of balls traveling through the calibrated volume were within 0.1% of independent speed sensors. The average residual error of a ball's tracked trajectory and a polynomial fit was within 1.5 mm. The method shows promise as an efficient means of calibrating large calibration volumes with multiple camera pairs. [ABSTRACT FROM AUTHOR]
- Subjects :
- OBJECT tracking (Computer vision)
CALIBRATION
LASERS
VIRTUAL reality
IMAGE analysis
Subjects
Details
- Language :
- English
- ISSN :
- 17543371
- Volume :
- 238
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Proceedings of the Institution of Mechanical Engineers -- Part P -- Journal of Sports Engineering & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 179084543
- Full Text :
- https://doi.org/10.1177/17543371221099369