Research Article

Invariants of the Space Point Element Structure and Their Applications

Table 2

2D invariants of the eight-point geometric structure calculated in the simulation image experiment and comparison with other methods.

Image serial number2D invariant value ()Error rate (%) (Zhang and Mui [3])Error rate (%) (Deng et al. [21])Error rate (%) (OURS)

10.41080.700.680.65
20.41440.310.290.22
30.41390.120.150.09
40.41430.230.310.19
50.42080.250.220.18
60.41751.311.120.97
70.41710.910.870.87
80.42061.831.911.72
90.41891.521.621.31
100.42262.492.532.20
110.42562.982.842.93
120.41480.580.490.31
Mean value0.41761.011.000.97
Standard deviation0.0043