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. 2021 Oct 30;21(21):7233. doi: 10.3390/s21217233

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© 2021 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 (https://creativecommons.org/licenses/by/4.0/).

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Sample 30-s heart rhythm instances represented as raw amplitude (y-axis) against time (x-axis) from ECG datasets; (a) NSR ECG from AF-DB (Patient 4015); (b) AF ECG from AF-DB (Patient 4043); (c) NSR ECG from ARR-DB (Patient 100); (d) AF ECG from ARR-DB (Patient 222) and PPG dataset; (e) NSR PPG (Patient 4002); (f) AF PPG (Patient 4012).