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Abdominal electrocardiogram (AECG) gives a safe and non-invasive way to monitor fetal well-being during pregnancy using surface electrodes. However, it is challenging to extract weak fetal ECG (fECG) from the AECG recordings with larger…

Medical Physics · Physics 2024-11-27 Yao Li , Xuanyu Luo , Haowen Zhao , Jiawen Cui , Yangfan She , Dongfang Li , Lai Jiang , Xu Zhang

We discuss the variational formulation of the Symmetric Autoencoder (SymAE) and its role in achieving disentanglement within the latent space to extract coherent information from a collection of seismic waveforms. Disentanglement involves…

Geophysics · Physics 2024-11-26 Pawan Bharadwaj

The vast majority of cardiovascular diseases may be preventable if early signs and risk factors are detected. Cardiovascular monitoring with body-worn sensor devices like sensor patches allows for the detection of such signs while…

Accurately diagnosing sleep disorders is essential for clinical assessments and treatments. Polysomnography (PSG) has long been used for detection of various sleep disorders. In this research, electrocardiography (ECG) and electromayography…

Machine Learning · Computer Science 2021-11-12 Delaram Jarchi , Javier Andreu-Perez , Mehrin Kiani , Oldrich Vysata , Jiri Kuchynka , Ales Prochazka , Saeid Sane

We address a blind source separation (BSS) problem in a noisy reverberant environment in which the number of microphones $M$ is greater than the number of sources of interest, and the other noise components can be approximated as stationary…

Audio and Speech Processing · Electrical Eng. & Systems 2021-04-23 Rintaro Ikeshita , Tomohiro Nakatani

Investigation on the electrocardiogram (ECG) signals is an essential way to diagnose heart disease since the ECG process is noninvasive and easy to use. This work presents a supraventricular arrhythmia prediction model consisting of a few…

Signal Processing · Electrical Eng. & Systems 2021-12-28 Pampa Howladar , Manodipan Sahoo

Atrial fibrillation (AF) is the most prevalent sustained cardiac arrhythmia, and its clinical assessment requires accurate characterization of atrial electrical activity. Noninvasive electrocardiographic imaging (ECGI) combined with deep…

Anemia is a prevalent hematological disorder that requires frequent hemoglobin monitoring for early diagnosis and effective management. Conventional hemoglobin assessment relies on invasive blood sampling, limiting its suitability for…

Computers and Society · Computer Science 2026-02-20 Garima Sahu , Poorva Verma , Nachiket Tapas

Objectives: This study examines human Photoplethysmogram (PPG) along with Electrocardiogram (ECG) signals to study cardiac autonomic imbalance in epileptic seizures. The significance and the prevalence of changes in PPG morphological…

Signal Processing · Electrical Eng. & Systems 2019-12-12 Seyede Mahya Safavi , Ninaz Valisharifabad , Robert Sabino , Hsinchung Chen , Ali HeydariGorji , Demi Tran , Jack Lin , Beth Lopour , Pai H. Chou

Cardiovascular diseases (CVDs) represent significant global health challenges today, necessitating regular and reliable monitoring to enable early intervention. Phonocardiogram (PCG) signals present a promising non-invasive method for…

Signal Processing · Electrical Eng. & Systems 2026-05-25 Abdul Ahad Mamun , Utsab Saha , Md Hasibul Hasan , Shahed Ahmed , MD Jahin Alam

Photoplethysmography (PPG) refers to the measurement of variations in blood volume using light and is a feature of most wearable devices. The PPG signals provide insight into the body's circulatory system and can be employed to extract…

Signal Processing · Electrical Eng. & Systems 2024-01-17 Yuyang Miao , Harry J. Davies , Danilo P. Mandic

Electrocardiogram (ECG) analysis is a fundamental tool for diagnosing cardiovascular conditions, yet anomaly detection in ECG signals remains challenging due to their inherent complexity and variability. We propose Multi-scale Masked…

Machine Learning · Computer Science 2025-02-11 Ya Zhou , Yujie Yang , Jianhuang Gan , Xiangjie Li , Jing Yuan , Wei Zhao

Extracting information from the electrocardiography (ECG) signal is an essential step in the design of digital health technologies in cardiology. In recent years, several machine learning (ML) algorithms for automatic extraction of…

Signal Processing · Electrical Eng. & Systems 2023-05-18 Adrian Atienza , Jakob Bardram , Sadasivan Puthusserypady

Head-based signals such as EEG, EMG, EOG, and ECG collected by wearable systems will play a pivotal role in clinical diagnosis, monitoring, and treatment of important brain disorder diseases. However, the real-time transmission of the…

Polysomnography (PSG) signals are essential for studying sleep processes and diagnosing sleep disorders. Analyzing PSG data through deep neural networks (DNNs) for automated sleep monitoring has become increasingly feasible. However, the…

Machine Learning · Computer Science 2025-04-21 Yifei Wang , Qi Liu , Fuli Min , Honghao Wang

As the rapid growth of high-speed and deep-tissue imaging in biomedical research, it is urgent to find a robust and effective denoising method to retain morphological features for further texture analysis and segmentation. Conventional…

Image and Video Processing · Electrical Eng. & Systems 2019-04-16 Sheng-Yong Niu , Lun-Zhang Guo , Yue Li , Tzung-Dau Wang , Yu Tsao , Tzu-Ming Liu

Histopathology images are crucial to the study of complex diseases such as cancer. The histologic characteristics of nuclei play a key role in disease diagnosis, prognosis and analysis. In this work, we propose a sparse Convolutional…

Computer Vision and Pattern Recognition · Computer Science 2017-04-11 Le Hou , Vu Nguyen , Dimitris Samaras , Tahsin M. Kurc , Yi Gao , Tianhao Zhao , Joel H. Saltz

In this paper we present a new approach to solve semi-supervised classification tasks for biomedical applications, involving a supervised autoencoder network. We create a network architecture that encodes labels into the latent space of an…

Machine Learning · Computer Science 2022-08-24 Cyprien Gille , Frederic Guyard , Michel Barlaud

We propose a novel filter for sparse big data, called an integrated autoencoder (IAE), which utilizes auxiliary information to mitigate data sparsity. The proposed model achieves an appropriate balance between prediction accuracy,…

Machine Learning · Computer Science 2019-06-17 Baogui Xin , Wei Peng

We describe a joint acoustic echo cancellation (AEC) and blind source extraction (BSE) approach for multi-microphone acoustic frontends. The proposed algorithm blindly estimates AEC and beamforming filters by maximizing the statistical…

Audio and Speech Processing · Electrical Eng. & Systems 2022-08-11 Thomas Haubner , Zbyněk Koldovský , Walter Kellermann