Contactless pulse measurement falters at high heart rates, finds study

Contactless pulse measurement falters at high heart rates, finds study

Researchers at Bielefeld University have analyzed how reliably AI methods can detect pulse rates from simple video recordings. The technique, known as rPPG—remote photoplethysmography, an optical form of contactless pulse measurement—is considered a future tool in telemedicine. But a new study published in the journal npj Digital Medicine reveals clear weaknesses as soon as heart rates rise.