Figure 10From: An improved method for the removal of ring artifacts in high resolution CT imagingNotation diagram for the inpainting algorithm. (a) Given the patch Ψ p , n p is the normal to the contour δ Ω of the target region Ω and ∇I p is the isophote (direction and intensity) at point p; (b) after first iteration of the algorithm, the target region Ω has shrank and its contour δ Ω has moved deeper into it.Back to article page