Table 3 Image sharpness values for denoiser comparison at \(20\,\hbox {mGy}\).
From: Self-supervised denoising of grating-based phase-contrast computed tomography
Signal type | Method | EPRa | EPRr |
|---|---|---|---|
Attenuation coefficient | N2I 4s | \(0.746\pm 0.027\) | \(\mathbf {0.824 \pm 0.019}\) |
BM3D | \(\mathbf {0.770 \pm 0.028}\) | \(0.775 \pm 0.024\) | |
SIR | \(0.683 \pm 0.020\) | \(0.732 \pm 0.023\) | |
PPR | \(0.764 \pm 0.018\) | \(0.547 \pm 0.029\) | |
FBP | \(0.749 \pm 0.019\) | \(0.503 \pm 0.034\) | |
Electron density | N2I 2s | \(0.559 \pm 0.029\) | \(\mathbf {0.679 \pm 0.032}\) |
BM3D | \(\mathbf {0.672 \pm 0.034}\) | \(0.470 \pm 0.046\) | |
SIR | \(0.618 \pm 0.029\) | \(0.592 \pm 0.047\) | |
PPR | \(0.659 \pm 0.026\) | \(0.223 \pm 0.017\) | |
FBP | \(0.642 \pm 0.023\) | \(0.202 \pm 0.015\) |
