Low-Computational Cost Stitching Method in a Three-Eyed Endoscope
Table 4
Statistical parameters of the mismatch error as the distance from the reference camera varies.
Distances from virtual camera (mm)
Cameras 1-2
Cameras 1–3
Cameras 2-3
Cameras’ mean
Mean value (%)
Standard deviation (%)
Mean value (%)
Standard deviation (%)
Mean value (%)
Standard deviation (%)
Mean value (%)
Standard deviation (%)
30
6.14
0.18
6.03
0.26
6.09
0.25
6.09
0.23
32.5
4.98
0.09
4.56
0.18
4.84
0.13
4.79
0.13
35
2.36
0.15
2.29
0.23
2.36
0.17
2.34
0.18
37.5
1.52
0.13
1.17
0.17
1.4
0.14
1.36
0.15
40
0.47
0.16
0.49
0.19
0.43
0.13
0.46
0.15
42.5
1.15
0.15
1.41
0.14
1.41
0.17
1.32
0.15
45
2.69
0.16
2.61
0.25
2.69
0.16
2.66
0.19
47.5
3.03
0.14
3.26
0.12
3.25
0.13
3.18
0.13
50
4.30
0.12
4.23
0.11
4.27
0.35
4.27
0.19
For each distance from the reference camera, the average value as a percentage of the homographed image side and the error standard deviation are reported. Values are given for each pair of cameras, 1-2, 1–3, and 2-3, and finally as an average of the three camera pairs.
