Table 1. Effect of patch size and direction on validation classification accuracy (%). The mean (standard deviation) of the accuracy for three training runs (GRU, 32 filters / pass, 2x2 receptive field, 25% dropout).
| Patch Size (height x width pixels) | |||||
|---|---|---|---|---|---|
| Architecture | 32x32 | 64x32 | 32x64 | 64x64 | Mean |
| Vertical Unidirectional | 95.17 (0.05) | 96.28 (0.02) | 95.44 (0.06) | 96.26 (0.07) | 95.78 |
| Horizontal Unidirectional | 94.48 (0.03) | 95.77 (0.04) | 95.13 (0.06) | 96.10 (0.02) | 95.37 |
| Vertical Bidirectional | 95.33 (0.06) | 96.18 (0.05) | 95.51 (0.02) | 96.01 (0.12) | 95.75 |
| Horizontal Bidirectional | 94.55 (0.08) | 95.71 (0.09) | 95.19 (0.06) | 95.95 (0.15) | 95.35 |
| Mean | 94.88 | 95.98 | 95.31 | 96.08 | |