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Endoluminal display of the detected iso-contours, i.e., the thick green curves. The arrow-pointed curves are redundant non-fold iso-contours. (a) Redundant iso-contours induced by TC. (b) Redundant iso-contour on a polyp. (c) The IFBs from (a) after filtration. (d) The IFBs from (b) after filtration.
