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 number | 2D invariant value () | Error rate (%) (Zhang and Mui [3]) | Error rate (%) (Deng et al. [21]) | Error rate (%) (OURS) |
| 1 | 0.4108 | 0.70 | 0.68 | 0.65 | 2 | 0.4144 | 0.31 | 0.29 | 0.22 | 3 | 0.4139 | 0.12 | 0.15 | 0.09 | 4 | 0.4143 | 0.23 | 0.31 | 0.19 | 5 | 0.4208 | 0.25 | 0.22 | 0.18 | 6 | 0.4175 | 1.31 | 1.12 | 0.97 | 7 | 0.4171 | 0.91 | 0.87 | 0.87 | 8 | 0.4206 | 1.83 | 1.91 | 1.72 | 9 | 0.4189 | 1.52 | 1.62 | 1.31 | 10 | 0.4226 | 2.49 | 2.53 | 2.20 | 11 | 0.4256 | 2.98 | 2.84 | 2.93 | 12 | 0.4148 | 0.58 | 0.49 | 0.31 | Mean value | 0.4176 | 1.01 | 1.00 | 0.97 | Standard deviation | 0.0043 | | | |
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