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. 2018 Aug 31;13(8):e0202581. doi: 10.1371/journal.pone.0202581

Table 7. Quality metrics for pulse rate estimates computed from monochrome NIR video.

Session Number of epochs Mean absolute error, BPM Epochs with absolute error below Correlation
3.5 BPM 7 BPM
2 16 52.5 13% 19% -0.02
9 12 37.4 25% 42% -0.13
10 17 97.3 6% 6% -0.01