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Generative Adversarial Networks have been crucial in the developments made in unsupervised learning in recent times. Exemplars of image synthesis from text or other images, these networks have shown remarkable improvements over conventional…

Machine Learning · Computer Science 2019-09-02 Rohan Akut , Sumukh Marathe , Rucha Apte , Ishan Joshi , Siddhivinayak Kulkarni

Reconstructing images using brain signals of imagined visuals may provide an augmented vision to the disabled, leading to the advancement of Brain-Computer Interface (BCI) technology. The recent progress in deep learning has boosted the…

Human-Computer Interaction · Computer Science 2023-03-21 Prajwal Singh , Pankaj Pandey , Krishna Miyapuram , Shanmuganathan Raman

Generative adversarial networks (GANs) have been widely investigated for many potential applications in medical imaging. DatasetGAN is a recently proposed framework based on modern GANs that can synthesize high-quality segmented images…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Zong Fan , Varun Kelkar , Mark A. Anastasio , Hua Li

Objective: Gaussian Processes (GP)-based filters, which have been effectively used for various applications including electrocardiogram (ECG) filtering can be computationally demanding and the choice of their hyperparameters is typically ad…

Signal Processing · Electrical Eng. & Systems 2024-01-10 Mircea Dumitru , Qiao Li , Erick Andres Perez Alday , Ali Bahrami Rad , Gari D. Clifford , Reza Sameni

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

The use of observed wearable sensor data (e.g., photoplethysmograms [PPG]) to infer health measures (e.g., glucose level or blood pressure) is a very active area of research. Such technology can have a significant impact on health…

Signal Processing · Electrical Eng. & Systems 2023-05-01 Suril Mehta , Nipun Kwatra , Mohit Jain , Daniel McDuff

Computationally synthesized blood vessels can be used for training and evaluation of medical image analysis applications. We propose a deep generative model to synthesize blood vessel geometries, with an application to coronary arteries in…

Computer Vision and Pattern Recognition · Computer Science 2018-04-13 Jelmer M. Wolterink , Tim Leiner , Ivana Isgum

Through the probing of light-matter interactions, Raman spectroscopy provides invaluable insights into the composition, structure, and dynamics of materials, and obtaining such data from portable and cheap instruments is of immense…

Chemical Physics · Physics 2024-07-03 Vikas Yadav , Abhay Kumar Tiwari , Soumik Siddhanta

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…

Processing temporal sequences is central to a variety of applications in health care, and in particular multi-channel Electrocardiogram (ECG) is a highly prevalent diagnostic modality that relies on robust sequence modeling. While Recurrent…

Machine Learning · Statistics 2018-07-17 Deepta Rajan , Jayaraman J. Thiagarajan

Access to electronic health record (EHR) data has motivated computational advances in medical research. However, various concerns, particularly over privacy, can limit access to and collaborative use of EHR data. Sharing synthetic EHR data…

Machine Learning · Computer Science 2018-01-15 Edward Choi , Siddharth Biswal , Bradley Malin , Jon Duke , Walter F. Stewart , Jimeng Sun

Background: Photoplethysmography (PPG) is a non-invasive optical sensing technique widely used to capture hemodynamic information, with broad deployment in both clinical monitoring systems and wearable devices. In recent years, the…

Artificial Intelligence · Computer Science 2026-05-06 Guangkun Nie , Jiabao Zhu , Gongzheng Tang , Deyun Zhang , Shijia Geng , Qinghao Zhao , Shenda Hong

Generative Adversarial Networks (GANs) have been used in many different applications to generate realistic synthetic data. We introduce a novel GAN with Autoencoder (GAN-AE) architecture to generate synthetic samples for variable length,…

Machine Learning · Computer Science 2022-10-10 Stephanie Ger , Yegna Subramanian Jambunath , Diego Klabjan

Cardiologists use electrocardiograms (ECG) for the detection of arrhythmias. However, continuous monitoring of ECG signals to detect cardiac abnormal-ities requires significant time and human resources. As a result, several deep learning…

Signal Processing · Electrical Eng. & Systems 2024-04-25 JuneYoung Park , Da Young Kim , Yunsoo Kim , Jisu Yoo , Tae Joon Kim

In the recent years Generative Adversarial Networks (GANs) have demonstrated significant progress in generating authentic looking data. In this work we introduce our simple method to exploit the advancements in well established image-based…

Machine Learning · Computer Science 2019-10-31 Eoin Brophy , Zhengwei Wang , Tomas E. Ward

Smart watches and other wearable devices are equipped with photoplethysmography (PPG) sensors for monitoring heart rate and other aspects of cardiovascular health. However, PPG signals collected from such devices are susceptible to…

Signal Processing · Electrical Eng. & Systems 2023-07-12 Pranay Jain , Cheng Ding , Cynthia Rudin , Xiao Hu

Cardiac Magnetic Resonance (CMR) imaging provides a comprehensive assessment of cardiac structure and function but remains constrained by high acquisition costs and reliance on expert annotations, limiting the availability of large-scale…

Image and Video Processing · Electrical Eng. & Systems 2026-02-11 Xiaocheng Fang , Zhengyao Ding , Guangkun Nie , Jieyi Cai , Yujie Xiao , Bo Liu , Jiarui Jin , Haoyu Wang , Shun Huang , Ting Chen , Hongyan Li , Shenda Hong

Photoplethysmography (PPG) is a non-invasive technology that measures changes in blood volume in the microvascular bed of tissue. It is commonly used in medical devices such as pulse oximeters and wrist worn heart rate monitors to monitor…

Machine Learning models are used in a wide variety of domains. However, machine learning methods often require a large amount of data in order to be successful. This is especially troublesome in domains where collecting real-world data is…

Neural and Evolutionary Computing · Computer Science 2022-05-23 Gabriel Wang , Anish Thite , Rodd Talebi , Anthony D'Achille , Alex Mussa , Jason Zutty

ECG Feature Extraction plays a significant role in diagnosing most of the cardiac diseases. One cardiac cycle in an ECG signal consists of the P-QRS-T waves. This feature extraction scheme determines the amplitudes and intervals in the ECG…

Neural and Evolutionary Computing · Computer Science 2010-05-07 S. Karpagachelvi , M. Arthanari , M. Sivakumar