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Motor imagery classification is of great significance to humans with mobility impairments, and how to extract and utilize the effective features from motor imagery electroencephalogram(EEG) channels has always been the focus of attention.…

Signal Processing · Electrical Eng. & Systems 2021-09-10 Yan Li , Ning Zhong , David Taniar , Haolan Zhang

The echocardiographic measurement of left ventricular ejection fraction (LVEF) is fundamental to the diagnosis and classification of patients with heart failure (HF). In order to quantify LVEF automatically and accurately, this paper…

Echocardiography is a vital non-invasive modality for cardiac assessment, with left ventricular ejection fraction (LVEF) serving as a key indicator of heart function. Existing LVEF estimation methods depend on large-scale annotated video…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Yao Du , Jiarong Guo , Xiaomeng Li

We propose FiberNet, a method to estimate \emph{in-vivo} the cardiac fiber architecture of the human atria from multiple catheter recordings of the electrical activation. Cardiac fibers play a central role in the electro-mechanical function…

Image and Video Processing · Electrical Eng. & Systems 2022-07-25 Carlos Ruiz Herrera , Thomas Grandits , Gernot Plank , Paris Perdikaris , Francisco Sahli Costabal , Simone Pezzuto

Deep learning has substantially advanced medical image segmentation, yet achieving robust generalization across diverse imaging modalities and anatomical structures remains a major challenge. A key contributor to this limitation lies in how…

Image and Video Processing · Electrical Eng. & Systems 2026-01-23 Shams Nafisa Ali , Taufiq Hasan

Graph neural networks (GNNs) have shown great success in learning from graph-based data. The key mechanism of current GNNs is message passing, where a node's feature is updated based on the information passing from its local neighbourhood.…

Machine Learning · Computer Science 2024-05-09 Yongze Wang , Haimin Zhang , Qiang Wu , Min Xu

Myocardial characterization is essential for patients with myocardial infarction and other myocardial diseases, and the assessment is often performed using cardiac magnetic resonance (CMR) sequences. In this study, we propose a fully…

Image and Video Processing · Electrical Eng. & Systems 2020-08-19 Xiaoran Zhang , Michelle Noga , Kumaradevan Punithakumar

Accurate, interpretable, and real-time modeling of multi-body dynamical systems is essential for predicting behaviors and inferring physical properties in natural and engineered environments. Traditional physics-based models face…

Machine Learning · Computer Science 2025-09-24 Vinay Sharma , Olga Fink

Modeling long-range interactions, the propagation of information across distant parts of a graph, is a central challenge in graph machine learning. Graph wavelets, inspired by multi-resolution signal processing, provide a principled way to…

Machine Learning · Computer Science 2025-10-14 Filippo Guerranti , Fabrizio Forte , Simon Geisler , Stephan Günnemann

Cardiovascular diseases (CVDs) remain the leading cause of mortality and morbidity worldwide. Both diagnosis and prognosis of these diseases benefit from high-quality imaging, which cardiac magnetic resonance imaging provides. CMR imaging…

Image and Video Processing · Electrical Eng. & Systems 2024-11-19 Jaykumar H. Patel , Brenden T. Kadota , Calder D. Sheagren , Mark Chiew , Graham A. Wright

Although deep learning has advanced automated electrocardiogram (ECG) diagnosis, prevalent supervised methods typically treat recordings as undifferentiated one-dimensional (1D) signals or two-dimensional (2D) images. This formulation…

Machine Learning · Computer Science 2026-01-13 Runze Ma , Caizhi Liao

Chronic Obstructive Pulmonary Disorder (COPD) is a prevalent respiratory disease that significantly impacts the quality of life of affected individuals. This paper presents COPDFlowNet, a novel deep-learning framework that leverages a…

Machine Learning · Computer Science 2023-12-20 Aryan Tyagi , Aryaman Rao , Shubhanshu Rao , Raj Kumar Singh

Surrogate modeling has emerged as a powerful tool to accelerate Computational Fluid Dynamics (CFD) simulations. Existing 3D geometric learning models based on point clouds, voxels, meshes, or graphs depend on explicit geometric…

Fluid Dynamics · Physics 2025-05-26 Qian Chen , Mohamed Elrefaie , Angela Dai , Faez Ahmed

Background. Functional assessment of right ventricle (RV) using gated myocardial perfusion single-photon emission computed tomography (MPS) heavily relies on the precise extraction of right ventricular contours. In this paper, we present a…

Image and Video Processing · Electrical Eng. & Systems 2023-12-22 Chen Zhao , Shi Shi , Zhuo He , Cheng Wang , Zhongqiang Zhao , Xinli Li , Yanli Zhou , Weihua Zhou

Spectral Graph Convolutional Networks (spectral GCNNs), a powerful tool for analyzing and processing graph data, typically apply frequency filtering via Fourier transform to obtain representations with selective information. Although…

Machine Learning · Computer Science 2023-05-04 Lequan Lin , Junbin Gao

Lane topology, which is usually modeled by a centerline graph, is essential for high-level autonomous driving. For a high-quality graph, both topology connectivity and spatial continuity of centerline segments are critical. However, most of…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Yunhui Han , Kun Yu , Zhiwei Li

Clinical time series are often irregularly sampled, with varying sensor frequencies, missing observations, and misaligned timestamps. Prior approaches typically address these irregularities by interpolating data into regular sequences,…

Machine Learning · Computer Science 2025-12-18 Arash Hajisafi , Maria Despoina Siampou , Bita Azarijoo , Zhen Xiong , Cyrus Shahabi

Medical ultrasound image segmentation presents a formidable challenge in the realm of computer vision. Traditional approaches rely on Convolutional Neural Networks (CNNs) and Transformer-based methods to address the intricacies of medical…

Computer Vision and Pattern Recognition · Computer Science 2025-08-20 Weixin Xu , Ziliang Wang

Mechano-electric feedbacks (MEFs), which model how mechanical stimuli are transduced into electrical signals, have received sparse investigation by considering electromechanical simulations in simplified scenarios. In this paper, we study…

Numerical Analysis · Mathematics 2021-11-01 Matteo Salvador , Francesco Regazzoni , Stefano Pagani , Luca Dede' , Natalia Trayanova , Alfio Quarteroni

In this paper, we propose a fully automatic MRI cardiac segmentation method based on a novel deep convolutional neural network (CNN) designed for the 2017 ACDC MICCAI challenge. The novelty of our network comes with its embedded shape prior…

Computer Vision and Pattern Recognition · Computer Science 2017-09-14 Clement Zotti , Zhiming Luo , Alain Lalande , Olivier Humbert , Pierre-Marc Jodoin