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相关论文: Learning Higher-Order Dynamics in Video-Based Card…

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Temporal echocardiography image registration is a basis for clinical quantifications such as cardiac motion estimation, myocardial strain assessments, and stroke volume quantifications. In past studies, deep learning image registration…

图像与视频处理 · 电气工程与系统科学 2023-09-12 Md. Kamrul Hasan , Haobo Zhu , Guang Yang , Choon Hwai Yap

Magnetic resonance imaging (MRI) is a widely known medical imaging technique used to assess the heart function. Deep learning (DL) models perform several tasks in cardiac MRI (CMR) images with good efficacy, such as segmentation,…

图像与视频处理 · 电气工程与系统科学 2022-05-03 Daniel Lima , Catharine Graves , Marco Gutierrez , Bruno Brandoli , Jose Rodrigues-Jr

Cardiac motion estimation plays a key role in MRI cardiac feature tracking and function assessment such as myocardium strain. In this paper, we propose Motion Pyramid Networks, a novel deep learning-based approach for accurate and efficient…

图像与视频处理 · 电气工程与系统科学 2020-09-17 Hanchao Yu , Xiao Chen , Humphrey Shi , Terrence Chen , Thomas S. Huang , Shanhui Sun

Predicting the electrical behavior of the heart, from the cellular scale to the tissue level, relies on the formulation and numerical approximation of coupled nonlinear dynamical systems. These systems describe the cardiac action potential,…

计算物理 · 物理学 2021-01-27 Stefania Fresca , Andrea Manzoni , Luca Dedè , Alfio Quarteroni

Understanding the movement of the left ventricle myocardium (LVmyo) during the cardiac cycle is essential for assessing cardiac function. One way to model this movement is through a series of deformable image registrations (DIRs) of the…

图像与视频处理 · 电气工程与系统科学 2025-01-14 Mathias Micheelsen Lowes , Jonas Jalili Pedersen , Bjørn S. Hansen , Klaus Fuglsang Kofoed , Maxime Sermesant , Rasmus R. Paulsen

This paper introduces an efficient second-order method for solving the elastic net problem. Its key innovation is a computationally efficient technique for injecting curvature information in the optimization process which admits a strong…

最优化与控制 · 数学 2019-01-25 Vien V. Mai , Mikael Johansson

Intracardiac flow patterns are shaped by the coupled motion of the cardiac chambers and heart valves and provide important information about cardiac function. However, clinical flow imaging remains limited by exam times, noise, resolution,…

图像与视频处理 · 电气工程与系统科学 2026-05-12 Fanwei Kong , Aaron Brown , Michael Loecher , Perry S. Choi , Lei Shi , Michael Ma , Daniel B. Ennis , Alison Marsden

Motion estimation of cardiac MRI videos is crucial for the evaluation of human heart anatomy and function. Recent researches show promising results with deep learning-based methods. In clinical deployment, however, they suffer dramatic…

计算机视觉与模式识别 · 计算机科学 2020-08-18 Hanchao Yu , Shanhui Sun , Haichao Yu , Xiao Chen , Honghui Shi , Thomas Huang , Terrence Chen

Video prediction is a fundamental task for various downstream applications, including robotics and world modeling. Although general video prediction models have achieved remarkable performance in standard scenarios, occlusion is still an…

计算机视觉与模式识别 · 计算机科学 2025-11-21 Eliyas Suleyman , Paul Henderson , Eksan Firkat , Nicolas Pugeault

Cardiovascular waveforms contain information for clinical diagnosis. By "learning" and organizing the subtle change of waveform morphology from large amounts of raw waveform data, unsupervised manifold learning helps delineate a…

定量方法 · 定量生物学 2019-12-03 Shen-Chih Wang , Hau-Tieng Wu , Po-Hsun Huang , Cheng-Hsi Chang , Chien-Kun Ting , Yu-Ting Lin

We propose a novel heart rate (HR) estimation method from facial videos that dynamically adapts the HR pulse extraction algorithm to separately deal with noise from 'rigid' head motion and 'non-rigid' facial expression. We first identify…

信号处理 · 电气工程与系统科学 2019-05-30 Utkarsh Sharma , Terumi Umematsu , Masanori Tsujikawa , Yoshifumi Onishi

Time-domain algorithms are focused on detecting local maxima or local minima using a moving window, and therefore finding the interval between the dominant J-peaks of ballistocardiogram (BCG) signal. However, this approach has many…

信号处理 · 电气工程与系统科学 2021-01-26 Ibrahim Sadek

Taking inspiration from physical motion, we present a new self-supervised dynamics learning strategy for videos: Video Time-Differentiation for Instance Discrimination (ViDiDi). ViDiDi is a simple and data-efficient strategy, readily…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Siyi Chen , Minkyu Choi , Zesen Zhao , Kuan Han , Qing Qu , Zhongming Liu

Higher-order patterns reveal sequential multistep state transitions, which are usually superior to origin-destination analysis, which depicts only first-order geospatial movement patterns. Conventional methods for higher-order movement…

人机交互 · 计算机科学 2024-03-07 Zezheng Feng , Fang Zhu , Hongjun Wang , Jianing Hao , ShuangHua Yang , Wei Zeng , Huamin Qu

Video analytics systems perform automatic events, movements, and actions recognition in a video and make it possible to execute queries on the video. As a result of a large number of video data that need to be processed, optimizing the…

计算机视觉与模式识别 · 计算机科学 2021-06-01 Nada Ibrahim , Preeti Maurya , Omid Jafari , Parth Nagarkar

Differential Dynamic Programming (DDP) is a popular technique used to generate motion for dynamic-legged robots in the recent past. However, in most cases, only the first-order partial derivatives of the underlying dynamics are used,…

机器人学 · 计算机科学 2023-07-25 Shubham Singh , Ryan P. Russell , Patrick M. Wensing

A deep latent variable model is a powerful method for capturing complex distributions. These models assume that underlying structures, but unobserved, are present within the data. In this dissertation, we explore high-dimensional problems…

机器学习 · 计算机科学 2024-06-13 Khuong Vo

Accurate prediction of cardiovascular diseases remains imperative for early diagnosis and intervention, necessitating robust and precise predictive models. Recently, there has been a growing interest in multi-modal learning for uncovering…

计算机视觉与模式识别 · 计算机科学 2024-11-12 Francesco Girlanda , Olga Demler , Bjoern Menze , Neda Davoudi

An important topic of interest in imaging is the construction of protocols that are not diffraction limited. This can be achieved in a variety of ways, including classical superresolution techniques or quantum entanglement-based protocols.…

量子物理 · 物理学 2015-10-28 Mark E. Pearce , Thomas Mehringer , J. von Zanthier , Pieter Kok

Temporal patterns of cardiac motion provide important information for cardiac disease diagnosis. This pattern could be obtained by three-directional CINE multi-slice left ventricular myocardial velocity mapping (3Dir MVM), which is a…

图像与视频处理 · 电气工程与系统科学 2021-11-02 Xiaodan Xing , Yinzhe Wu , David Firmin , Peter Gatehouse , Guang Yang