公开(公告)号：US20200323493A1

公开(公告)日：2020-10-15

申请号：US16828364

申请日：2020-03-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Rahul ARORA ,  Sujit JOS ,  Ibrahim ABDUL MAJEED ,  Ka Ram CHOI ,  Sang Kon BAE

IPC: A61B5/00 ,  A61B5/024 ,  A61B5/021 ,  A61B5/145

Abstract: The present disclosure relates to a method and system for processing a photoplethysmogram (PPG) signal to improve accuracy of measurement of physiological parameters of a subject. The method may include removing a baseline drift from the PPG signal; obtaining a drift removed signal; filtering the drift removed signal; obtaining a filtered signal; performing motion artifact correction on the filtered signal; and obtaining a corrected signal.

公开(公告)号：US20200237312A1

公开(公告)日：2020-07-30

申请号：US16749514

申请日：2020-01-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ibrahim ABDUL MAJEED ,  Sujit JOS ,  Rahul ARORA ,  Ka Ram CHOI ,  Sang Kon BAE

IPC: A61B5/00 ,  A61B5/024

Abstract: A method and apparatus for pre-processing a photoplethysmogram (PPG) signal include receiving, by an apparatus, the PPG signal including a plurality of pulses, obtaining, by the apparatus, a smoothed PPG signal based on smoothing the PPG signal using a moving average filter, obtaining, by the apparatus, a drift removed PPG signal based on removing drift from the smoothed PPG signal using a fitted polynomial function, and obtaining, by the apparatus, a rectified PPG signal based on correcting a motion artifact of the drift removed PPG signal by replacing each of the plurality of pulses using a combination of a global signal pulse and a corresponding local signal pulse.