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. 2016 Sep 24;122(1):17–33. doi: 10.1007/s11263-016-0950-1

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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 — Convergence performance of SIFT-based AAMs and GN-DPMs on LPFW: Average pt-pt error versus iteration number