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Fig. 3 | BioMedical Engineering OnLine

Fig. 3

From: Video pulse rate variability analysis in stationary and motion conditions

Fig. 3

Video image processing: a original frame; b ROIf and ROIe; c feature points detected on frame; d ROI filter; e green channel of frame; f binary image; g multiplication resulting image from df. All pixels with non-zero values from g image were averaged across all the video sequence to obtain a raw iPPG signal. The subject gave permission to publish his photo in the paper

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