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Rapid developments in advanced sensing and imaging have significantly enhanced information visibility, opening opportunities for predictive modeling of complex dynamic systems. However, sensing signals acquired from such complex systems are…

机器学习 · 统计学 2025-05-02 Xizhuo Zhang , Bing Yao

Easy access to precise 3D tracking of movement could benefit many aspects of rehabilitation. A challenge to achieving this goal is that while there are many datasets and pretrained algorithms for able-bodied adults, algorithms trained on…

计算机视觉与模式识别 · 计算机科学 2023-10-31 R. James Cotton , Colleen Peyton

Human motion prediction is an important and challenging task in many computer vision application domains. Recent work concentrates on utilizing the timing processing ability of recurrent neural networks (RNNs) to achieve smooth and reliable…

计算机视觉与模式识别 · 计算机科学 2021-12-21 Zigeng Yan , Di-Hua Zhai , Yuanqing Xia

Lossless compression of dynamic 2D+t and 3D+t medical data is challenging regarding the huge amount of data, the characteristics of the inherent noise, and the high bit depth. Beyond that, a scalable representation is often required in…

图像与视频处理 · 电气工程与系统科学 2023-02-08 Daniela Lanz , André Kaup

The growing demand for structural health monitoring has driven increasing interest in high-precision motion measurement, as structural information derived from extracted motions can effectively reflect the current condition of the…

计算机视觉与模式识别 · 计算机科学 2025-07-21 Hongyi Liu , Haifeng Wang

Purpose: Myocardium segmentation in echocardiography videos is a challenging task due to low contrast, noise, and anatomical variability. Traditional deep learning models either process frames independently, ignoring temporal information,…

计算机视觉与模式识别 · 计算机科学 2026-01-15 Bahar Khodabakhshian , Nima Hashemi , Armin Saadat , Zahra Gholami , In-Chang Hwang , Samira Sojoudi , Christina Luong , Purang Abolmaesumi , Teresa Tsang

Blood flow reconstruction in the vasculature is important for many clinical applications. However, in clinical settings, the available data are often quite limited. For instance, Transcranial Doppler ultrasound (TCD) is a noninvasive…

图像与视频处理 · 电气工程与系统科学 2024-03-18 Shaghayegh Z. Ashtiani , Mohammad Sarabian , Kaveh Laksari , Hessam Babaee

We formulate a reduced-order strategy for efficiently forecasting complex high-dimensional dynamical systems entirely based on data streams. The first step of our method involves reconstructing the dynamics in a reduced-order subspace of…

数据分析、统计与概率 · 物理学 2017-03-08 Zhong Yi Wan , Themistoklis P. Sapsis

Maneuvering target tracking is a challenging problem for sensor systems because of the unpredictability of the targets' motions. This paper proposes a novel data-driven method for learning the dynamical motion model of a target.…

信号处理 · 电气工程与系统科学 2022-11-28 Mengwei Sun , Mike E. Davies , Ian K. Proudler , James R. Hopgood

Accelerating the acquisition of magnetic resonance imaging (MRI) is a challenging problem, and many works have been proposed to reconstruct images from undersampled k-space data. However, if the main purpose is to extract certain…

图像与视频处理 · 电气工程与系统科学 2019-08-22 Chen Qin , Wenjia Bai , Jo Schlemper , Steffen E. Petersen , Stefan K. Piechnik , Stefan Neubauer , Daniel Rueckert

Graph-based recommendation systems are effective at modeling collaborative patterns but often suffer from two limitations: overreliance on low-pass filtering, which suppresses user-specific signals, and omission of sequential dynamics in…

信息检索 · 计算机科学 2025-09-25 Ahmad Bin Rabiah , Julian McAuley

Spatiotemporal imaging has applications in e.g. cardiac diagnostics, surgical guidance, and radiotherapy monitoring, In this paper, we explain the temporal motion by identifying the underlying dynamics, only based on the sequential images.…

医学物理 · 物理学 2024-10-16 Niklas Gunnarsson , Peter Kimstrand , Jens Sjölund , Thomas B. Schön

Accurately monitoring road traffic state is crucial for various applications, including travel time prediction, traffic control, and traffic safety. However, the lack of sensors often results in incomplete traffic state data, making it…

机器学习 · 计算机科学 2024-04-03 Fan Wu , Zhanhong Cheng , Huiyu Chen , Tony Z. Qiu , Lijun Sun

Latent dynamics discovery is challenging in extracting complex dynamics from high-dimensional noisy neural data. Many dimensionality reduction methods have been widely adopted to extract low-dimensional, smooth and time-evolving latent…

机器学习 · 计算机科学 2019-07-02 Qi She , Anqi Wu

Predicting future motion based on historical motion sequence is a fundamental problem in computer vision, and it has wide applications in autonomous driving and robotics. Some recent works have shown that Graph Convolutional Networks(GCN)…

计算机视觉与模式识别 · 计算机科学 2022-07-12 Chongyang Zhong , Lei Hu , Zihao Zhang , Yongjing Ye , Shihong Xia

Frequently, transient changes in physiological signals, such as ECG morphology, precede or follow a rate change. Current methods for visualizing morphology allow only the tracking of preselected changes, severely limiting analytical…

医学物理 · 物理学 2026-02-24 Tomasz Gradowski , Damian Waląg , Tomir Domański , Teodor Buchner

We introduce a data-driven version of the plus Cartan connection on the homogeneous space $\mathbb{M}_2$ of 2D positions and orientations. We formulate a theorem that describes all shortest and straight curves (parallel velocity and…

微分几何 · 数学 2023-12-11 Nicky van den Berg , Bart Smets , Gautam Pai , Jean-Marie Mirebeau , Remco Duits

Tracking in gigapixel scenarios holds numerous potential applications in video surveillance and pedestrian analysis. Existing algorithms attempt to perform tracking in crowded scenes by utilizing multiple cameras or group relationships.…

计算机视觉与模式识别 · 计算机科学 2024-07-29 Yunqi Zhao , Yuchen Guo , Zheng Cao , Kai Ni , Ruqi Huang , Lu Fang

Mathematical models of biological systems are beginning to be used for safety-critical applications, where large numbers of repeated model evaluations are required to perform uncertainty quantification and sensitivity analysis. Most of…

统计计算 · 统计学 2018-05-28 Sanmitra Ghosh , David J. Gavaghan , Gary R. Mirams

The study of moving particles (e.g. molecules, virus, vesicles, organelles, or whole cells) is crucial to decipher a plethora of cellular mechanisms within physiological and pathological conditions. Powerful live-imaging approaches enable…

数值分析 · 数学 2023-11-13 Eloina Corradi , Maurizio Tavelli , Marie-Laure Baudet , Walter Boscheri