Image Segmentation with the Exact Watershed Transform

H. Meine and U. Köthe (Germany)


sub-pixel segmentation, watersheds, splines


Discrete algorithms for low-level boundary detection are geometrically inaccurate and topologically unreliable. Cor responding continuous methods are often more accurate and need fewer or no heuristics. Thus, we transfer discrete boundary indicators into a continuous form by means of differentiable spline interpolation and detect boundaries us ing the exact watershed transform. We demonstrate that this significantly improves the obtained segmentations.

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