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An Earbud‐Based Photoplethysmography and its Application
Author(s) -
TOMITA YOHEI,
MITSUKURA YASUE
Publication year - 2018
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.12019
Subject(s) - photoplethysmogram , noise (video) , signal (programming language) , computer science , acoustics , artificial intelligence , computer vision , physics , filter (signal processing) , image (mathematics) , programming language
SUMMARY This paper presents an earbud‐based photoplethysmography (PPG) and its application. This PPG recording system permits long‐term continuous monitoring of cardiovascular function since it can be worn comfortably on ears. Experimental investigations showed that stress and drowsiness could be estimated by analyzing measured PPG signals. Furthermore, noise suppression techniques for motion noises and ambient light interferences are introduced to make a recorded signal more acceptable.