Motion artifact removal techniques for wearable EEG and PPG sensor systems

D Seok, S Lee, M Kim, J Cho, C Kim - Frontiers in Electronics, 2021 - frontiersin.org
Removal of motion artifacts is a critical challenge, especially in wearable
electroencephalography (EEG) and photoplethysmography (PPG) devices that are exposed …

Stress detection with single PPG sensor by orchestrating multiple denoising and peak-detecting methods

S Heo, S Kwon, J Lee - IEEE Access, 2021 - ieeexplore.ieee.org
Stress is one of the major causes of diseases in modern society. Therefore, measuring and
managing the degree of stress is crucial to maintain a healthy life. The goal of this paper is to …

A survey on denoising techniques of PPG signal

B Mishra, NS Nirala - 2020 IEEE international conference for …, 2020 - ieeexplore.ieee.org
Noise always deteriorates the quality of Photoplethysmogram (PPG) signal. Time variant
nature of PPG signal causes complications in removal of noise from PPG signal. A good …

BIMO: Bootstrap Inter–Intra Modality at Once Unsupervised Learning for Multivariate Time Series

S Heo, S Kim, J Lee - Applied Sciences, 2024 - mdpi.com
It is difficult to learn meaningful representations of time-series data since they are sparsely
labeled and unpredictable. Hence, we propose bootstrap inter–intra modality at once …

[PDF][PDF] PPG signal preprocessing and comparison study with learning-based model for stress detection

S Heo, I Kim, S Kwon, H Lee… - J. Korean Inst …, 2020 - journal-home.s3.ap-northeast-2 …
PPG signals are widely used to measure and provide personalized health information in
wearable devices. However, PPG signals are often corrupted by different artifacts, and the …