Submillimetrische Brustwandverschiebungen zur Messung von Herzschlag und Atmung
Extraktion winziger 0,1- bis 0,5-mm-Brustwandvibrationen durch Herzkontraktionen, getrennt von 5- bis 12-mm-Atembewegungen.
Variational Mode Decomposition (VMD)
VMD mathematically separates the narrow-band respiratory harmonics from high-frequency cardiac beat signatures without phase distortion.
- Measures respiration rate within ±1 breath per minute.
- Heart rate tracking accuracy within ±2 beats per minute.
- Operates through winter jackets, heavy blankets, and seat cushions.
- Immunity to in-cabin optical shadows, fog, and total darkness.
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