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VueMotion has been rigorously validated against industry-leading tools, confirming its accuracy and reliability in performance analysis. Below are the key validations, the specific metrics, and conclusions demonstrating that VueMotion meets gold standard benchmarks.
VueMotion has been validated against:
- Criterion Laser system (timing gates) for instantaneous speed validation
- OptoGate for Sprint metrics - Ground Contact Time, Step Length, Step velocity, and Flight time
- Vicon for indoor motion capture of key-points' trajectories
1. Instantaneous Speed Validation
What It Measured:
This test evaluated VueMotion’s ability to measure the instantaneous speed of moving subjects—a critical metric in sports performance analysis.
Accuracy Metrics:
- Error Margin: Achieved an average error margin of 0.12 m/s compared to high-speed reference equipment.
- High Accuracy: Results show an accuracy of 95% across speed ranges and 99% accuracy at higher speeds (>=9 m/s).
- Consistency: Measurements remained reliable across various movement speeds, ensuring dependable data capture during high-intensity actions.
Conclusion:
VueMotion’s instantaneous speed measurement is as precise as the gold standard, providing coaches and athletes with accurate speed data that they can rely on for performance analysis.
2. Validation with Respect to the Opto Jump System
What It Measured:
This validation focused on Sprint kinetics information including Step Length, Step .
Validation Specifications:
- 20 different athletes (male and females with age ranging from 18-45)
- Total 80 runs recorded
- Run Scenarios: Fly and Accelerate
The results conclude that VueMotion results are of high accuracy as follows:
- GCT: 93.8%
- Flight Time: 93.2%
- Step Frequency: 97%
- Step Length: 96.2%
- Step Velocity: 95.8%
Conclusion:
VueMotion’s performance in capturing Sprint metrics is on par with the Opto Jump system, confirming that it is as effective as the gold standard in assessing explosive athletic performance.
3. Indoor Validation with Respect to the Vicon System
What It Measured:
Vicon is the industry benchmark for indoor motion capture. VueMotion was validated for its capability to track multi-camera data indoors, including motion trajectories and frame rate stability.
VueMotion participated with indoor validation (track length 5m) of VueMotion’s pose analysis with a multi-camera marker-based Vicon System The purpose of this investigation was to quantify the validity of VueMotion for tracking specific body landmarks during a multi-hop assessment.
Data Collection and Analysis:
- During a hop movement analysis, VueMotion tracked landmarks in 2D frames captured using an iPhone 12 Pro, capturing footage at a rate of 60 Hz. For this study, a single participant completed the test six times, with three repetitions performed on each leg. Simultaneously, we collected criterion VICON data to serve as the reference for our analysis.
Quantifying Agreement:
- To assess the agreement between the markerless (practical) and VICON (criterion) tracking systems, cross-correlation analysis was conducted. This involved temporally and positionally aligning both datasets. Linear regression was performed on the log-transformed values. Subsequently, a typical error of the estimate, expressed as a coefficient of variation was calculated for each of the landmarks tracked in both the X and Z coordinates.
Results:
- The mean typical error for the tracked landmarks in the X-axis (up-down) was 5% ± 2%, ranging from 1% to 17%, with an accuracy of 95% ± 2%. In the Y-axis (left-right), the mean typical error was 1% ± 1%, ranging from 0% to 8%, with an accuracy of 99% ± 1%. These differences between the markerless system (VueMotion) and VICON were consistent with previously reported findings in other kinematic analysis methods.
Practical Implications:
- The marker-less approach using 2D camera systems, as demonstrated by VueMotion, offers a potential avenue for efficient and cost-effective in-field data collection. This technology has the capacity to be applied to the assessment of various human movements, highlighting its versatility and utility in research and practice.
Overall Conclusion
The comprehensive validation process confirms that VueMotion stands shoulder-to-shoulder with gold standard systems. VueMotion delivers unparalleled precision. These results underscore that VueMotion is as good as—and in some instances, better than—the established gold standard, empowering coaches and athletes with actionable, data-driven insights every time.