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. 2017 May 31;8:915. doi: 10.3389/fpls.2017.00915

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Copyright © 2017 Liao, Peng and Chen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Reconstruction of leaflet shapes using spectral frequency components of the elliptic Fourier analysis. (A) Reconstruction of the outline of the original leaflet, using Delta components (1st–19th spectral components) of the elliptic Fourier analysis. Note: only the outline of the leaflet was reconstructed. (B) Reconstruction of the blade and serration features using both Delta) and Alpha components (1st–55th spectral components) of the elliptic Fourier analysis. Note: most of the blade and tooth features were reconstructed. (C) Reconstruction of the blade and serration features using Delta, Alpha and Beta components (1st–120th spectral components). Note: all of the blade and tooth features were reconstructed. Shown are overlays of the original leaflet with the reconstructed leaflet outlined by a blue line.