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We propose a novel Particle Flow Map (PFM) method to enable accurate long-range advection for incompressible fluid simulation. The foundation of our method is the observation that a particle trajectory generated in a forward simulation…

图形学 · 计算机科学 2024-05-17 Junwei Zhou , Duowen Chen , Molin Deng , Yitong Deng , Yuchen Sun , Sinan Wang , Shiying Xiong , Bo Zhu

Real-time multi-view point cloud reconstruction is a core problem in 3D vision and immersive perception, with wide applications in VR, AR, robotic navigation, digital twins, and computer interaction. Despite advances in multi-camera systems…

计算机视觉与模式识别 · 计算机科学 2026-02-06 Chentian Sun

Flow Matching (FM) is a simulation-free method for learning a continuous and invertible flow to interpolate between two distributions, and in particular to generate data from noise. Inspired by the variational nature of the diffusion…

机器学习 · 统计学 2025-07-14 Chen Xu , Xiuyuan Cheng , Yao Xie

In the context of lung ultrasound, the detection of B-lines, which are indicative of interstitial lung disease and pulmonary edema, plays a pivotal role in clinical diagnosis. Current methods still rely on visual inspection by experts.…

图像与视频处理 · 电气工程与系统科学 2023-11-14 Tianqi Yang , Nantheera Anantrasirichai , Oktay Karakuş , Marco Allinovi , Hatice Ceylan Koydemir , Alin Achim

Each photo in an image burst can be considered a sample of a complex 3D scene: the product of parallax, diffuse and specular materials, scene motion, and illuminant variation. While decomposing all of these effects from a stack of…

计算机视觉与模式识别 · 计算机科学 2023-12-25 Ilya Chugunov , David Shustin , Ruyu Yan , Chenyang Lei , Felix Heide

While the ultrasound and cavitation based therapies have mushroomed over the years, there is a lack of online monitoring the cavitation bubble dynamics in biological tissue. {\color{black}Here we demonstrate that with ultrasonic plane wave…

流体动力学 · 物理学 2023-05-26 S. Izak Ghasemian , F. Reuter , C. D. Ohl

Microtubules are cytoskeletal filaments that play essential roles in many cellular processes and are key therapeutic targets in several diseases. Accurate segmentation of microtubule networks is critical for studying their organization and…

计算机视觉与模式识别 · 计算机科学 2026-01-22 Sidi Mohamed Sid El Moctar , Achraf Ait Laydi , Yousef El Mourabit , Hélène Bouvrais

Unsupervised anomaly detection (UAD) attracts a lot of research interest and drives widespread applications, where only anomaly-free samples are available for training. Some UAD applications intend to further locate the anomalous regions…

计算机视觉与模式识别 · 计算机科学 2023-08-30 Yixuan Zhou , Xing Xu , Jingkuan Song , Fumin Shen , Heng Tao Shen

Binaural rendering aims to synthesize binaural audio that mimics natural hearing based on a mono audio and the locations of the speaker and listener. Although many methods have been proposed to solve this problem, they struggle with…

We propose Functional Flow Matching (FFM), a function-space generative model that generalizes the recently-introduced Flow Matching model to operate in infinite-dimensional spaces. Our approach works by first defining a path of probability…

机器学习 · 计算机科学 2023-12-07 Gavin Kerrigan , Giosue Migliorini , Padhraic Smyth

Beamforming is an essential step in the ultrasound image formation pipeline and has recently attracted growing interest. An important goal of beamforming is to increase the image spatial resolution, or in other words to narrow down the…

图像与视频处理 · 电气工程与系统科学 2022-09-01 Sobhan Goudarzi , Adrian Basarab , Hassan Rivaz

We introduce a rapid and precise analytical approach for analyzing cerebral blood flow (CBF) using Diffuse Correlation Spectroscopy (DCS) with the application of the Extreme Learning Machine (ELM). Our evaluation of ELM and existing…

机器学习 · 计算机科学 2024-02-02 Xi Chen , Zhenya Zang , Xingda Li

Ultrasound contrast imaging is a specialized imaging technique that applies microbubble contrast agents to traditional medical sonography, providing real-time visualization of blood flow and vessels. Gas-filled microbubbles are injected…

偏微分方程分析 · 数学 2024-12-17 Vanja Nikolić , Teresa Rauscher

Current multi-modal image fusion methods typically rely on task-specific models, leading to high training costs and limited scalability. While generative methods provide a unified modeling perspective, they often suffer from slow inference…

计算机视觉与模式识别 · 计算机科学 2025-11-19 Huayi Zhu , Xiu Shu , Youqiang Xiong , Qiao Liu , Rui Chen , Di Yuan , Xiaojun Chang , Zhenyu He

This paper introduces a novel framework for image quality transfer based on conditional flow matching (CFM). Unlike conventional generative models that rely on iterative sampling or adversarial objectives, CFM learns a continuous flow…

计算机视觉与模式识别 · 计算机科学 2025-10-15 Huu Tien Nguyen , Ahmed Karam Eldaly

Bubbly flows, as present in bubble column reactors, can be simulated using a variety of simulation techniques. In order to gain high resolution CFD methods are used to simulate a pseudo 2D bubble column using EL and EE techniques. The…

流体动力学 · 物理学 2017-06-20 Andreas Weber , Hans-Jörg Bart

Background and Objective: Hemodynamic analysis of blood flow through arteries and veins is critical for diagnosing cardiovascular diseases, such as aneurysms and stenoses, and for investigating cardiovascular parameters, such as turbulence…

Ultrasound B-Mode images are created from data obtained from each element in the transducer array in a process called beamforming. The beamforming goal is to enhance signals from specified spatial locations, while reducing signal from all…

信号处理 · 电气工程与系统科学 2020-07-08 Jaime Tierney , Adam Luchies , Christopher Khan , Brett Byram , Matthew Berger

Ultrasound imaging is widely used in clinical diagnosis due to its non-invasive nature and real-time capabilities. However, traditional ultrasound diagnostics relies heavily on physician expertise and is often hampered by suboptimal image…

图像与视频处理 · 电气工程与系统科学 2025-12-18 Yuncheng Jiang , Chun-Mei Feng , Jinke Ren , Jun Wei , Zixun Zhang , Yiwen Hu , Yunbi Liu , Rui Sun , Xuemei Tang , Juan Du , Xiang Wan , Yong Xu , Bo Du , Xin Gao , Guangyu Wang , Shaohua Zhou , Shuguang Cui , Zhen Li

Ultrasound Localization Microscopy (ULM) can map microvessels at a resolution of a few micrometers (\mu m). Transcranial ULM remains challenging in presence of aberrations caused by the skull, which lead to localization errors. Herein, we…

图像与视频处理 · 电气工程与系统科学 2023-09-20 Paul Xing , Jonathan Porée , Brice Rauby , Antoine Malescot , Éric Martineau , Vincent Perrot , Ravi L. Rungta , Jean Provost