Table 2 Average calculated similarity metrics for T1 to T2 transformations using the model trained on the IXI dataset but evaluated on test subjects from the OASIS dataset (OOD inputs). The values in the parentheses show the changes in the performance compared to the models that are also trained on the OASIS dataset. A negative value for SSIM, PSNR, and BSSIM and a positive value for LPIPS indicate that the performance is lower when using OOD inputs and vice versa.
From: Probabilistic brain MR image transformation using generative models
| Â | Direct | ResViT | cGAN | NCSN | DDPM |
|---|---|---|---|---|---|
SSIM | 85.86 (-3.08) | 91.05 (-0.95) | 89.02 (-2.80) | 88.43 (-4.26) | 91.04 (-1.43) |
PSNR | 22.97 (+1.39) | 24.12 (-0.75) | 23.60 (-1.39) | 24.38 (-1.11) | 25.24 (-0.96) |
LPIPS | 0.080 (-0.016) | 0.050 (+0.010) | 0.071 (+0.027) | 0.081 (+0.036) | 0.054 (+0.014) |
BSSIM | 82.11 (-4.82) | 89.26 (-1.30) | 86.40 (-3.57) | 86.18 (-4.76) | 88.48 (-2.16) |
