Camera & facial regions of interest
Forehead ROI
Left cheek ROI
Right cheek ROI
Dots: 478 tracked face landmarks
Sit ~50 cm from the camera, face the light, and keep still for 15–20 seconds.
Face parameters used by rPPG
| ROI | Color | R | G | B | Skin px | Pulse SNR |
|---|
Calibration
Enter reference readings to calibrate SpO₂ / BP for your face, camera and lighting
Pulse oximeter SpO₂
Cuff BP /
Take the reference reading at the same time as the dashboard shows a "good" signal. Calibration is a single-point offset saved in this browser only.
Heart rate no signal
--bpm
SpO₂ experimental
--%
Blood pressure experimental
--/--mmHg
Respiration estimate
--br/min
HRV (RMSSD)
--ms
needs a clean, still signal
Raw RGB traces (all ROIs combined, normalized)
RedGreen (strongest pulse)Blue
Extracted pulse waveform (POS, band-passed 42–210 bpm)
Blood-volume pulseDetected beats