NON-INVASIVE METHOD AND SYSTEM FOR ESTIMATING BLOOD PRESSURE FROM PHOTOPLETHYSMOGRAM USING STATISTICAL POST-PROCESSING

摘要

NON-INVASIVE METHOD AND SYSTEM FOR ESTIMATING BLOOD PRESSURE FROM PHOTOPLETHYSMOGRAM USING STATISTICAL POST-PROCESSING A system and method for estimating blood pressure (BP) using photoplethysmogram (PPG) has been explained. The PPG is captured from a PPG sensor (102). For preparing training model, a pulse oximeter is used for capturing PPG. For testing, a smartphone camera is used for capturing the 10 PPG signal. A plurality of features are extracted from the preprocessed PPG signal. A BP distribution is then generated using the plurality of features and the training model. The BP distribution is part of a set of BP distributions generated from different subjects. Finally, a post­ processing methodology have been used to reject inconsistent data out of the set of BP distributions and BP value is estimated only for the remaining BP distributions and a statistical average is 15 provided as the blood pressure estimate. * To be published with Fig. 1 21