Honda Motor Co., Ltd.
System and method for capturing and decontaminating photoplethysmopgraphy (PPG) signals in a vehicle

Abstract:

A system and method for processing photoplethysmography (PPG) signals in a vehicle. The system and method include determining a plurality of consistent PPG waveform signals based on a plurality of PPG waveform signals and electronically aggregating the plurality of consistent PPG waveform signals into a PPG measurement signal. The system and method also include determining a plurality of noise waveform signals based on a plurality of pressure measurement signals and electronically aggregating the plurality of noise waveform signals into a motion artifacts measurement signal. The system and method further include processing a refined PPG signal to suppress motion artifacts from the PPG measurement signal by filtering a segment of the PPG measurement signal that is attributed to the motion artifacts represented within the motion artifacts measurement signal.