PPG METHOD AND APPARATUS FOR PRE-PROCESSING PPG SIGNAL

摘要

An apparatus and a method for preprocessing a PPG signal. According to one embodiment, the PPG signal pre-processing apparatus is a PPG signal receiver for receiving a PPG signal including a pulse, a moving average filter for smoothing the PPG signal to obtain a smoothed PPG signal, and a drift-removed PPG signal A drift removal engine that removes drift from the smoothed PPG signal using a fitted polynomial function to replace the pulse with a combination of global signal pulses and local signal pulses to obtain a rectified PPG signal. And a motion artifact correction engine that corrects the motion artifacts of the signal.