Table 2 Classification accuracy (%) at 28 dpi on leaf scans of three trials of Cassava-TME204-UCBSV and one trial of Cassava-Kiroba-UCBSV.
Groups | Methods | TME204 | Kiroba | |||
|---|---|---|---|---|---|---|
Trial 1 | Trial 2 | Trial 2 w PCR | Trial 3 | |||
Control versus infected | Vegetation indices | 56.0 ± 13.1 | 87.7 ± 10.0 | 89.4 ± 9.3 | 73.9 ± 12.0 | 69.72 ± 21.22 |
Spectral reflectance (whole leaf) | 67.6 ± 25.0 | 97.6 ± 8.3 | 96.9 ± 9.8 | 88.8 ± 16.4 | 87.41 ± 18.43 | |
Spectral reflectance (patch-based) | 78.9 ± 13.7 | 95.8 ± 5.8 | 96.1 ± 5.0 | 90.8 ± 11.3 | 87.98 ± 12.49 | |
Spatia–spectral fusion (patch-based) | 67.7 ± 13.6 | 94.1 ± 7.3 | 95.9 ± 6.3 | 89.1 ± 11.9 | 82.58 ± 14.50 | |
Decision fusion (average) | 76.9 ± 13.8 | 95.1 ± 6.6 | 95.6 ± 6.1 | 90.3 ± 11.5 | 83.67 ± 16.38 | |
Spectral reflectance (patch-based voting) | 87.2 ± 17.5 | 98.7 ± 5.6 | 98.2 ± 6.4 | 93.5 ± 14.5 | 90.60 ± 15.74 | |
Spatial–spectral fusion (patch-based voting) | 78.6 ± 20.9 | 98.3 ± 6.3 | 98.0 ± 5.8 | 91.7 ± 15.7 | 85.19 ± 20.07 | |
ProbDecFus (patch-based) | 79.0 ± 13.6 | 95.7 ± 6.3 | 96.5 ± 5.8 | 90.8 ± 11.4 | 88.12 ± 12.83 | |
ProbDecFus (patch-based voting) | 87.3 ± 17.4 | 98.5 ± 6.9 | 98.6 ± 5.1 | 93.6 ± 14.8 | 91.10 ± 15.74 | |
Mock versus infected | Vegetation indices | 53.6 ± 16.2 | 57.0 ± 14.9 | 56.3 ± 14.8 | 56.6 ± 17.5 | 63.21 ± 23.57 |
Spectral reflectance (whole leaf) | 52.1 ± 21.8 | 75.3 ± 26.3 | 67.3 ± 22.3 | 76.1 ± 27.0 | 72.35 ± 28.27 | |
Spectral reflectance (patch-based) | 65.7 ± 13.3 | 72.6 ± 19.2 | 67.7 ± 17.6 | 76.9 ± 18.4 | 66.45 ± 22.80 | |
Spatial–spectral fusion (patch-based) | 52.8 ± 13.3 | 71.9 ± 17.3 | 66.9 ± 17.7 | 74.7 ± 16.5 | 69.66 ± 22.29 | |
Decision fusion (average) | 63.8 ± 15.0 | 70.9 ± 17.9 | 66.0 ± 16.9 | 74.2 ± 19.9 | 67.70 ± 24.84 | |
Spectral reflectance (patch-based voting) | 75.5 ± 20.8 | 75.4 ± 24.7 | 70.9 ± 24.1 | 81.0 ± 22.8 | 69.42 ± 27.54 | |
Spatia–spectral fusion (patch-based voting) | 57.1 ± 25.8 | 78.4 ± 25.6 | 71.1 ± 24.6 | 81.3 ± 21.8 | 76.37 ± 27.36 | |
ProbDecFus (patch-based) | 66.0 ± 13.3 | 72.3 ± 18.7 | 67.3 ± 17.4 | 77.6 ± 18.2 | 66.97 ± 23.30 | |
ProbDecFus (patch-based voting) | 75.9 ± 20.8 | 75.1 ± 24.5 | 70.2 ± 23.7 | 81.8 ± 22.6 | 69.47 ± 27.72 | |
Control versus mock | Vegetation indices | 55.3 ± 16.9 | 74.6 ± 15.5 | N/A | 67.8 ± 14.7 | 50.89 ± 16.45 |
Spectral reflectance (whole leaf) | 60.8 ± 27.7 | 88.6 ± 18.9 | 79.4 ± 25.6 | 90.54 ± 15.36 | ||
Spectral reflectance (patch-based) | 63.6 ± 17.7 | 91.4 ± 9.9 | 76.3 ± 15.5 | 84.56 ± 14.1 | ||
Spatial–spectral fusion (patch-based) | 59.8 ± 15.5 | 90.4 ± 11.0 | 77.1 ± 15.2 | 81.80 ± 13.29 | ||
Decision fusion (average) | 62.0 ± 17.9 | 88.5 ± 12.3 | 75.9 ± 15.3 | 80.11 ± 15.17 | ||
Spectral reflectance (patch-based voting) | 70.7 ± 25.5 | 93.4 ± 11.5 | 84.3 ± 20.2 | 88.12 ± 19.01 | ||
Spatial–spectral fusion (patch-based voting) | 66.9 ± 26.2 | 93.3 ± 14.0 | 84.7 ± 19.7 | 87.10 ± 20.52 | ||
ProbDecFus (patch-based) | 63.2 ± 17.7 | 91.4 ± 10.4 | 76.5 ± 15.4 | 84.95 ± 14.22 | ||
ProbDecFus (patch-based voting) | 79.0 ± 25.6 | 93.1 ± 11.9 | 84.5 ± 19.9 | 88.19 ± 19.23 | ||
