Towards passive heart health monitoring via smartphone camera

Google Research · 1 month ago

Google researchers developed PHRM, a system that uses a smartphone's front-facing camera to passively measure heart rate during everyday use by analyzing facial video clips with deep learning. The system achieved mean absolute percentage error less than 10% for heart rate measurement and mean absolute error less than 5 beats per minute for daily resting heart rate compared to wearables, with equal accuracy across all skin tones using data from over 350,000 video clips from nearly 700 diverse participants. This enables smartphone-based heart health monitoring to reach the 5 billion smartphone users globally, particularly benefiting people in low-resource settings who lack access to wearable devices.