Real‐Time PPG Signal Conditioning with Long Short‐Term Memory (LSTM) Network for Wearable Devices

Marek Wójcikowski

doi:10.3390/s22010164

Real‐Time PPG Signal Conditioning with Long Short‐Term Memory (LSTM) Network for Wearable Devices

Abstract

This paper presents an algorithm for real‐time detection of the heart rate measured on a person’s wrist using a wearable device with a photoplethysmographic (PPG) sensor and accelerometer. The proposed algorithm consists of an appropriately trained LSTM network and the Time‐Domain Heart Rate (TDHR) algorithm for peak detection in the PPG waveform. The Long Short‐Term Memory (LSTM) network uses the signals from the accelerometer to improve the shape of the PPG input signal in a time domain that is distorted by body movements. Multiple variants of the LSTM network have been evaluated, including taking their complexity and computational cost into consideration. Adding the LSTM network caused additional computational effort, but the performance results of the whole algorithm are much better, outperforming the other algorithms from the literature.

Citations

9

CrossRef
0

Web of Science
9

Scopus

Author (1)

Marek Wójcikowski dr hab. inż.

Cite as

Full text

download paper

downloaded 133 times

Publication version: Accepted or Published Version
DOI:: Digital Object Identifier (open in new tab) 10.3390/s22010164
License: open in new tab

Keywords

Details

Category:

Articles

Type:

artykuły w czasopismach

Published in:

SENSORS no. 22,
ISSN: 1424-8220

Language:

English

Publication year:

2022

Bibliographic description:

Wójcikowski M.: Real‐Time PPG Signal Conditioning with Long Short‐Term Memory (LSTM) Network for Wearable Devices// SENSORS -Vol. 22,iss. 1 (2022), s.164-

DOI: