Extraktion des Blutvolumenpulses aus Gesichtsvideos bei Umgebungslicht

Analyse von Mikroschwankungen der Grünlicht-Absorption durch pulsierendes Blut in subdermalen Kapillaren an Stirn und Wangenknochen.

Illumination Invariant Chroma Decomposition

Projecting RGB pixel channels into chrominance subspaces eliminates false pulse signals caused by sunlight passing through highway roadside trees.

Measures heart rate with ±1.5 bpm clinical accuracy without skin contact.
Continuous pulse rate, respiratory rate, and blood oxygen estimation.
Robust tracking across diverse skin tones adhering to the Fitzpatrick scale.
Zero degradation under pitch-black night-time driving using 940nm infrared illumination.