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. 2020 Mar 6;20(5):1439. doi: 10.3390/s20051439

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© 2020 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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Measurements of two independently triggered synchronized cameras with exposure compensation (left cam0, right cam2). Both cameras show strictly the same image with at most two of the striding LEDs on. The increment between consecutive measurements adds up correctly and overflows at a count of 64. (a) LED count $c_{1} = 16$ ; (b) LED count $c_{2} = c_{1} +$ $κ$ $= 116 % 64 = 52$ ; (c) LED count $c_{3} = c_{2} +$ $κ$ $= 216 % 64 = 24$ .