Table 5 Reconstruction performance comparison of different upsampling and downsampling strategies in OBISR-K variants (without PatchD discriminators)
From: Unsupervised GAN-based model for super-resolution of oracle bone rubbing images
Dataset | Variant | Input | Output | PSNR↑ | SSIM↑ | VIF↑ |
|---|---|---|---|---|---|---|
OBI_BI | OBISR-K1 | Bicubic | Bicubic | 14.9579 | 0.4703 | 0.1355 |
| Â | OBISR-K2 | Bicubic | Bilinear | 14.8746 | 0.4504 | 0.1325 |
| Â | OBISR-K3 | Bilinear | Bicubic | 14.8216 | 0.4777 | 0.1363 |
| Â | OBISR-K | Bilinear | Bilinear | 15.2146 | 0.4792 | 0.1364 |
OBI_AR | OBISR-K1 | Bicubic | Bicubic | 14.9177 | 0.6264 | 0.1753 |
| Â | OBISR-K2 | Bicubic | Bilinear | 14.6506 | 0.4213 | 0.1712 |
| Â | OBISR-K3 | Bilinear | Bicubic | 16.5590 | 0.6017 | 0.2079 |
| Â | OBISR-K | Bilinear | Bilinear | 17.5109 | 0.5879 | 0.2421 |
