Table 4 Data analysis results of each scanning condition
RFID tag | Distance | Signal-to-noise ratio | Uniformity | Geometric distortion | High contrast resolution (lp) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SE | GRE | IR | SE | GRE | IR | SE | GRE | IR | SE | GRE | IR | ||
With no tag | Group 0 | 85.002 ± 45.11 | 180.5214 ± 70.32 | 80.6595 ± 25.37 | 96.34% | 96.80% | 96.38% | 0.0131 ± 8.27E-03 | 0.0124 ± 7.74E-03 | 0.0119 ± 5.97E-03 | 4 | 4 | 4 |
With tag | Group 1 (0 cm) | 82.5572 ± 39.90 | 78.3693 ± 50.29 | 75.9142 ± 24.81 | 96.22% | 97.66% | 96.00% | 0.0136 ± 1.09E-02 | 0.0127 ± 1.25E-02 | 0.0122 ± 1.15E-02 | 4 | 4 | 4 |
Group 2 (4 cm) | 82.6249 ± 47.57 | 99.7621 ± 58.52 | 76.1715 ± 25.89 | 96.34% | 97.22% | 96.07% | 0.0126 ± 8.73E-03 | 0.0131 ± 1.25E-02 | 0.0128 ± 9.73E-03 | 4 | 4 | 4 | |
Group 3 (8 cm) | 82.7500 ± 41.37 | 106.6630 ± 47.95 | 77.8441 ± 23.31 | 96.41% | 97.03% | 96.23% | 0.0133 ± 8.59E-03 | 0.0129 ± 1.18E-02 | 0.0121 ± 9.82E-03 | 4 | 4 | 4 | |
Group 4 (10 cm) | 86.7404 ± 66.00 | 112.3880 ± 52.41 | 81.7903 ± 24.68 | 96.17% | 96.87% | 96.08% | 0.0134 ± 1.09E-02 | 0.0113 ± 9.83E-03 | 0.0115 ± 9.72E-03 | 4 | 4 | 4 | |