Table 6 Ablation study results of the proposed HSICNet model across Indian Pines, Pavia University, and Salinas datasets.
Configuration | Dataset | OA (%) | AA (%) | Kappa | F1-score |
|---|---|---|---|---|---|
HSICNet (full model) | Indian Pines | 98.63 | 97.42 | 0.98 | 0.976 |
Pavia University | 99.14 | 98.30 | 0.99 | 0.986 | |
Salinas | 99.35 | 98.91 | 0.99 | 0.991 | |
Without the spatial branch | Indian Pines | 96.11 | 94.60 | 0.95 | 0.948 |
Pavia University | 96.92 | 95.45 | 0.95 | 0.953 | |
Salinas | 97.22 | 96.01 | 0.96 | 0.963 | |
Without spectral branch | Indian Pines | 95.43 | 93.87 | 0.94 | 0.935 |
Pavia University | 95.78 | 94.51 | 0.94 | 0.943 | |
Salinas | 96.45 | 95.19 | 0.95 | 0.951 | |
Without spectral-spatial fusion | Indian Pines | 94.70 | 92.90 | 0.93 | 0.924 |
Pavia University | 94.88 | 93.67 | 0.93 | 0.936 | |
Salinas | 95.73 | 94.41 | 0.94 | 0.944 | |
Without attention mechanism (basic fusion) | Indian Pines | 96.78 | 95.31 | 0.96 | 0.956 |
Pavia University | 97.02 | 95.82 | 0.96 | 0.961 | |
Salinas | 97.89 | 96.88 | 0.97 | 0.973 | |
Without PCA, dimensionality reduction | Indian Pines | 97.13 | 95.96 | 0.97 | 0.964 |
Pavia University | 97.69 | 96.53 | 0.97 | 0.969 | |
Salinas | 98.11 | 97.32 | 0.98 | 0.978 |
