All Modalities

rPPG Face Modality

Heartbeat from a Face Video

Hold still and look at the camera. We'll measure your heartbeat from micro-colour changes in your skin — no physical contact needed.

What we sample

Centre your face, stay still — we sample colour pulses on your forehead and cheek for the full 15 seconds. Two regions of interest give us redundancy if one is shaded.

CENTER YOUR FACE IN THE OVAL
Waking up camera…

Get yourself into the green to unlock recording

How rPPG turns your face into music

Forehead micro-colour
Green-channel pulse on the skin
tempo (BPM)
Cheek pulse
Same signal, second ROI for consensus
confidence + harmony
Heart-rate variability
Beat-to-beat timing variability
groove + swing
Signal stability
15-s tracking confidence
arrangement complexity

We measure the same colour shifts a finger-on-flash pulse would — but contact-free, from skin micro-changes invisible to the eye.

Tips

  • Sit in even, bright light — window light works best
  • Rest the phone on something so your hand isn't in the loop
  • Breathe naturally; don't talk or smile during recording
  • Keep your face centered in the oval for the full 15s