Slide 11 illustrates the
device with the markers placed 9 cm apart,
Slide 11. Measurement for the 9 cm test (C).
The slide was photographed at the original session.
Slide 12 illustrates the
actual device at Dr. Richards' laboratory while collecting the data.
Slide 12. Actual data collection
session at Dr. Richards' Laboratory.
Slide 13 illustrates the
average measured distance between top plate markers.
The results for the
measurement of the distance between the top two markers on the rotating plate is presented
in Table 1. The known distance between the two top plate markers was 9.0 cm.
9-cm test
Slide 13. Average Measured Distance between Top Plate Markers.
As reported during the
original Conference presentation based on the test results, the APAS performed the best in
determining the actual 9 cm by detecting the distance as 9.015 cm.
Absolutely amazing. The APAS
performed the best over all other companies !!!
|
Measured |
Rank |
RMS |
Rank |
Max |
Rank |
Total |
Rank |
Sub-Total |
|
[cm] |
Score |
Error cm |
Score |
Error cm |
Score |
Error |
Score |
Score |
| Ariel |
9.015 |
5 |
0.087 |
5 |
0.285 |
5 |
0.372 |
5 |
20 |
| Motion |
9.074 |
2 |
0.155 |
3 |
0.624 |
2 |
0.779 |
2 |
9 |
| Peak |
9.076 |
1 |
0.177 |
2 |
0.582 |
3 |
0.759 |
3 |
9 |
| Qualisys |
9.054 |
4 |
0.221 |
1 |
1.276 |
1 |
1.497 |
1 |
7 |
| Vicon |
8.980 |
3 |
0.129 |
4 |
0.557 |
4 |
0.686 |
4 |
15 |
Table 1. 9 cm test
results
Slide 13 illustrates the
bar diagram for the 9 cm measurement and Table 1 illustrates the actual data obtained for
the different companies. Slide 14 illustrates the RMS bar diagram.
Slide 14. RMS Error from Top Plate Marker Measures.
In Slide 14 it is clearly
demonstrated that the APAS system had the lowest error. The unrealistic results
obtained by Elite can be seen and, for this reason, the author of the report decided not
to include their results.
As one can observe, The APAS system yielded 9.015 cm with
the lowest error of .087 cm. The total error amounted to the sum of the RMS and the
maximum error and was the best of all systems. The APAS scored 20 points for this test
with Vicon second with 15 points.
In all cases, the APAS system
performance was superior to all other companies. The APAS system scored first with 20
points. The second best performer was the Vicon company. However, remember that the
switching points errors were not considered. Had the switching points been
considered for Vicon, the error would have increased significantly. |
TOP 
APAS 
