The results for the measurement of the distance between
the top two bar markers are presented in Table 2. Measured distances between the two
fully visible markers spaced was 50 cm.
50-cm Test Results
|
Measured |
Rank |
RMS |
Rank |
Max |
Rank |
Total |
Rank |
Sub-Total |
|
[cm] |
Score |
Error cm |
Score |
Error cm |
Score |
Error |
Score |
Score |
Ariel |
49.882 |
2 |
0.246 |
1 |
0.961 |
1 |
1.207 |
1 |
4 |
Motion |
49.796 |
1 |
0.059 |
5 |
0.183 |
4 |
0.242 |
5 |
10 |
Peak |
49.942 |
4 |
0.091 |
2 |
0.259 |
2 |
0.350 |
2 |
8 |
Qualisys |
49.906 |
3 |
0.080 |
3 |
0.198 |
3 |
0.278 |
3 |
9 |
Vicon |
49.952 |
5 |
0.062 |
4 |
0.183 |
4 |
0.245 |
4 |
13 |
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The APAS produced relatively good results on the 50 cm
test. The RMS indicated 2.46 mm of error which is less then .5 of a percent. The
accuracy could increase with an additional camera. The APAS utilized in this test
consisted of only 5 cameras while all the others used 6 cameras.
Table 2. 50-cm Test