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. 2016 Oct 13;122(3):542–557. doi: 10.1007/s11263-016-0961-y

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© The Author(s) 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 8 — Combinatorial contour sampling: a the DoG corner response function of a fin contour. b The $n = 50$ most prominent maxima of D are selected as keypoints. The detected keypoints are shown on the fin contour. c The contour is combinatorially sampled between every keypoint pair to produce a set of local, semi-local and global subsections