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Illustration of refinement procedure. (a) and (b) show the biniarized Bbaseline and Bfollow-up with the simulated erosion. In (c) the images are spatially registered. (d), (e), and (f) show Bloss (dark voxels), Bgain (light voxels) and both overlaid. In (g) the results of the binary erosion step is shown.
