Hold the phone at eye level, about an arm's length away, in steady light facing a window or lamp.
Research prototype, not a medical device. A number appears only when the checks below pass; otherwise it says why. Nothing leaves your phone.
Each item is measured separately; good framing alone does not make a pulse reading accurate.
RGB green, POS and CHROM are the three estimators behind the reading. The spiking network (SNN) and the matched ANN run on simulated events computed from your video — no event camera is involved — and are never used for the headline number.
| Method | BPM | Signal |
|---|
Simulated events (red = brighter, blue = darker).