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Electrocardiograms (ECGs) and photoplethysmograms (PPGs) are generally used to monitor an individual's cardiovascular health. In clinical settings, ECGs and fingertip PPGs are the main signals used for assessing cardiovascular health, but…

Signal Processing · Electrical Eng. & Systems 2024-06-26 Nathan C. L. Kong , Dae Lee , Huyen Do , Dae Hoon Park , Cong Xu , Hongda Mao , Jonathan Chung

We propose a method for generating an electrocardiogram (ECG) signal for one cardiac cycle using a variational autoencoder. Using this method we extracted a vector of new 25 features, which in many cases can be interpreted. The generated…

Signal Processing · Electrical Eng. & Systems 2020-02-04 V. V. Kuznetsov , V. A. Moskalenko , N. Yu. Zolotykh

Passive Acoustic Monitoring (PAM) analysis is often hindered by the intensive manual effort needed to create labelled training data. This study introduces a synthetic data framework to generate large volumes of richly labelled training data…

Sound · Computer Science 2025-07-23 Kaspar Soltero , Tadeu Siqueira , Stefanie Gutschmidt

Seizure-frequency information is important for epilepsy research and clinical care, but it is usually recorded in variable free-text clinic letters that are hard to annotate and share. We developed a reproducible, privacy-preserving…

Information Retrieval · Computer Science 2026-03-13 Yujian Gan , Stephen H. Barlow , Ben Holgate , Joe Davies , James T. Teo , Joel S. Winston , Mark P. Richardson

The electrocardiogram (ECG) signal is one of the most vital signals that can be used to investigate the performance of heart. Based on the ECG graph, we can identify different disorders and diseases. Therefore, monitoring this signal is of…

Signal Processing · Electrical Eng. & Systems 2023-02-22 Soheil Khooyooz , Mohammad Ali Ahmadi-Pajouh , Kamyab Azizi

Acquiring large quantities of data and annotations is known to be effective for developing high-performing deep learning models, but is difficult and expensive to do in the healthcare context. Adding synthetic training data using generative…

Image and Video Processing · Electrical Eng. & Systems 2023-10-06 Menghan Yu , Sourabh Kulhare , Courosh Mehanian , Charles B Delahunt , Daniel E Shea , Zohreh Laverriere , Ishan Shah , Matthew P Horning

The development of machine learning for cardiac care is severely hampered by privacy restrictions on sharing real patient electrocardiogram (ECG) data. Although generative AI offers a promising solution, the real-world use of existing…

In real-world clinical practice, electrocardiograms (ECGs) are often captured and shared as photographs. However, publicly available ECG data, and thus most related research, relies on digital signals. This has led to a disconnect in which…

Computer Vision and Pattern Recognition · Computer Science 2025-12-25 Xiaoyu Wang , Ramesh Nadarajah , Zhiqiang Zhang , David Wong

Within cardiovascular disease detection using deep learning applied to ECG signals, the complexities of handling physiological signals have sparked growing interest in leveraging deep generative models for effective data augmentation. In…

Computer Vision and Pattern Recognition · Computer Science 2024-05-06 Nour Neifar , Achraf Ben-Hamadou , Afef Mdhaffar , Mohamed Jmaiel

Electrocardiogram (ECG) signals are beneficial in diagnosing cardiovascular diseases, which are one of the leading causes of death. However, they are often contaminated by noise artifacts and affect the automatic and manual diagnosis…

Signal Processing · Electrical Eng. & Systems 2022-08-19 Radhika Dua , Jiyoung Lee , Joon-myoung Kwon , Edward Choi

The present study introduces an innovative approach to the synthesis of Electroencephalogram (EEG) signals by integrating diffusion models with reinforcement learning. This integration addresses key challenges associated with traditional…

Signal Processing · Electrical Eng. & Systems 2024-10-02 Yang An , Yuhao Tong , Weikai Wang , Steven W. Su

Cardiac Magnetic Resonance (CMR) imaging is a vital non-invasive tool for diagnosing heart diseases and evaluating cardiac health. However, the limited availability of large-scale, high-quality CMR datasets poses a major challenge to the…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Ziyu Li , Yujian Hu , Zhengyao Ding , Yiheng Mao , Haitao Li , Fan Yi , Hongkun Zhang , Zhengxing Huang

High-quality, large-scale data is essential for robust deep learning models in medical applications, particularly ultrasound image analysis. Diffusion models facilitate high-fidelity medical image generation, reducing the costs associated…

Image and Video Processing · Electrical Eng. & Systems 2024-04-01 Pooria Ashrafian , Milad Yazdani , Moein Heidari , Dena Shahriari , Ilker Hacihaliloglu

Electroencephalography (EEG) plays a significant role in the Brain Computer Interface (BCI) domain, due to its non-invasive nature, low cost, and ease of use, making it a highly desirable option for widespread adoption by the general…

Signal Processing · Electrical Eng. & Systems 2023-03-13 Giulio Tosato , Cesare M. Dalbagno , Francesco Fumagalli

Deep learning models need a sufficient amount of data in order to be able to find the hidden patterns in it. It is the purpose of generative modeling to learn the data distribution, thus allowing us to sample more data and augment the…

Machine Learning · Computer Science 2024-11-28 José Fernando Núñez , Jamie Arjona , Javier Béjar

Cardiovascular signals such as photoplethysmography (PPG), electrocardiography (ECG), and blood pressure (BP) are inherently correlated and complementary, together reflecting the health of cardiovascular system. However, their joint…

Machine Learning · Computer Science 2025-08-22 Zehua Chen , Yuyang Miao , Liyuan Wang , Luyun Fan , Danilo P. Mandic , Jun Zhu

The analysis of electrophysiological data is crucial for certain surgical procedures such as deep brain stimulation, which has been adopted for the treatment of a variety of neurological disorders. During the procedure, auditory analysis of…

Machine Learning · Computer Science 2025-03-24 Thibault Martin , Paul Sauleau , Claire Haegelen , Pierre Jannin , John S. H. Baxter

Tracking biosignals is crucial for monitoring wellness and preempting the development of severe medical conditions. Today, wearable devices can conveniently record various biosignals, creating the opportunity to monitor health status…

Machine Learning · Computer Science 2024-03-07 Salar Abbaspourazad , Oussama Elachqar , Andrew C. Miller , Saba Emrani , Udhyakumar Nallasamy , Ian Shapiro

Synthetic electrocardiogram generation serves medical AI applications requiring privacy-preserving data sharing and training dataset augmentation. Current diffusion-based methods achieve high generation quality but require hundreds of…

Signal Processing · Electrical Eng. & Systems 2025-09-16 Vitalii Bondar , Serhii Semenov , Vira Babenko , Dmytro Holovniak

Brightness mode (B-mode) ultrasound is a common imaging modality in the clinical assessment of several cardiovascular diseases. The utility of ultrasound-based functional indices such as the ejection fraction (EF) and stroke volume (SV) is…

Medical Physics · Physics 2024-09-10 Tanmay Mukherjee , Sunder Neelakantan , Kyle Myers , Carl Tong , Reza Avazmohammadi