Skip to main content
. Author manuscript; available in PMC: 2022 Oct 11.
Published in final edited form as: IEEE J Biomed Health Inform. 2019 Apr 3;24(3):649–657. doi: 10.1109/JBHI.2019.2909065

Fig. 1.

Fig. 1.

Examples of 30-sec segments of PPG co-recorded with ECG showing the cardiac rhythm. (a) Good PPG signal for normal sinus rhythm (NSR); (b) Bad PPG signal for NSR; (c) Good PPG signal for AFib case; (d) Bad PPG signal for AFib.