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. 2015 Sep 30;16:316. doi: 10.1186/s12859-015-0739-1

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© Kato et al. 2015

Open Access This 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. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 7 — Detection performances. The proposed descriptor, S-HOG, achieves evident improvement in F-measures compared to the existing descriptor, R-HOG. With small loss of true positives, S-HOG halves false positives of R-HOG. (See subsection on ‘Detection performance’ for details)