Fig. 1
From: Gaussian diffusion sinogram inpainting for X-ray CT metal artifact reduction
Diagram of the proposed Gaussian diffusion sinogram inpainting algorithm. From the uncorrected image, the prior image and metal-only image are obtained. The corresponding sinograms are yielded via forward projection. The gradient descent algorithm and POCS process are applied to restore the sinogram. The final corrected image is reconstructed via the FBP method from the corrected sinogram