Unverified60% confidenceFactExact time
Remote photoplethysmography (rPPG) technology extracts heart rate signals by analyzing the time-series variation of pixel intensity in the facial region of a video; the variation amplitude of skin light reflectance in a real human face is between 0.1% and 1%.
2
Sources
60%
Confidence
Long-term
Relevance
7/18/2026
First Seen
Sources
Related Claims
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