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. 2018 Jul 17;18(7):2312. doi: 10.3390/s18072312

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Ground-truth verification of our algorithm compared against different techniques on SynVideo2 in presence of nonlinear large motion. (a) Top: Original video frame. Bottom: A spatio-temporal $Y - T$ slice of the video along the red line marked on the input frame. (b,c) Linear EVM [6] and phase-based motion magnification [12]. (d) The ground-truth. (e,f) Motion acceleration magnification [17] and our algorithm. Our algorithm reveals the small motion of interest and best resembles the ground truth, while other techniques generate significant blurring and artifacts.