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Estimating the 3D motion of points in a scene, known as scene flow, is a core problem in computer vision. Traditional learning-based methods designed to learn end-to-end 3D flow often suffer from poor generalization. Here we present a…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Yair Kittenplon , Yonina C. Eldar , Dan Raviv

Optical flow is an indispensable building block for various important computer vision tasks, including motion estimation, object tracking, and disparity measurement. In this work, we propose TransFlow, a pure transformer architecture for…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Yawen Lu , Qifan Wang , Siqi Ma , Tong Geng , Yingjie Victor Chen , Huaijin Chen , Dongfang Liu

Living systems often function with regulatory interactions, but the question of how activity, stochasticity and regulations work together for achieving different goals still remains puzzling. We propose a stochastic model of an active…

软凝聚态物质 · 物理学 2026-03-02 Tai Han , Fanlong Meng

The rapid growth of large data center loads and inverter-based generation is increasing the stress on transmission networks, while expanding grid capacity at the required pace remains challenging. Power flow controllers (PFCs) that adjust…

最优化与控制 · 数学 2025-11-20 Eric Haag , Yuhao Chen , Giri Venkataramanan , Manish K. Singh

Optical flow estimation is a critical task for tiny mobile robotics to enable safe and accurate navigation, obstacle avoidance, and other functionalities. However, optical flow estimation on tiny robots is challenging due to limited onboard…

机器人学 · 计算机科学 2025-02-13 Sai Ramana Kiran Pinnama Raju , Rishabh Singh , Manoj Velmurugan , Nitin J. Sanket

Sampling from unnormalized densities presents a fundamental challenge with wide-ranging applications, from posterior inference to molecular dynamics simulations. Continuous flow-based neural samplers offer a promising approach, learning a…

机器学习 · 计算机科学 2025-07-22 Wuhao Chen , Zijing Ou , Yingzhen Li

Feature identification is an important task in many fluid dynamics applications and diverse methods have been developed for this purpose. These methods are based on a physical understanding of the underlying behavior of the flow in the…

流体动力学 · 物理学 2019-01-07 Carlos Michelén Ströfer , Jinlong Wu , Heng Xiao , Eric Paterson

Predicting future behaviors of road agents is a key task in autonomous driving. While existing models have demonstrated great success in predicting marginal agent future behaviors, it remains a challenge to efficiently predict consistent…

计算机视觉与模式识别 · 计算机科学 2022-08-10 Xin Huang , Xiaoyu Tian , Junru Gu , Qiao Sun , Hang Zhao

This paper addresses the integral energy fluxes in natural and controlled turbulent channel flows, where active skin-friction drag reduction techniques allow a more efficient use of the available power. We study whether the increased…

流体动力学 · 物理学 2018-11-14 Davide Gatti , Andrea Cimarelli , Yosuke Hasegawa , Bettina Frohnapfel , Maurizio Quadrio

Future architectures designed to deliver exascale performance motivate the need for novel algorithmic changes in order to fully exploit their capabilities. In this paper, the performance of several numerical algorithms, characterised by…

数据结构与算法 · 计算机科学 2016-10-31 Satya P. Jammy , Christian T. Jacobs , Neil D. Sandham

Human motion is inherently continuous and dynamic, posing significant challenges for generative models. While discrete generation methods are widely used, they suffer from limited expressiveness and frame-wise noise artifacts. In contrast,…

计算机视觉与模式识别 · 计算机科学 2025-08-08 Jungbin Cho , Junwan Kim , Jisoo Kim , Minseo Kim , Mingu Kang , Sungeun Hong , Tae-Hyun Oh , Youngjae Yu

Widefield calcium imaging has recently emerged as a powerful experimental technique to record coordinated large-scale brain activity. These measurements present a unique opportunity to characterize spatiotemporal coherent structures that…

Event cameras such as DAVIS can simultaneously output high temporal resolution events and low frame-rate intensity images, which own great potential in capturing scene motion, such as optical flow estimation. Most of the existing optical…

计算机视觉与模式识别 · 计算机科学 2022-11-18 Zhexiong Wan , Yuchao Dai , Yuxin Mao

This paper presents a novel machine-learning framework for reconstructing low-order gust-encounter flow field and lift coefficients from sparse, noisy surface pressure measurements. Our study thoroughly investigates the time-varying…

机器学习 · 计算机科学 2025-06-25 Hanieh Mousavi , Jeff D. Eldredge

Websites today routinely combine JavaScript from multiple sources, both trusted and untrusted. Hence, JavaScript security is of paramount importance. A specific interesting problem is information flow control (IFC) for JavaScript. In this…

密码学与安全 · 计算机科学 2014-01-22 Abhishek Bichhawat , Vineet Rajani , Deepak Garg , Christian Hammer

Spatial understanding is a critical aspect of most robotic tasks, particularly when generalization is important. Despite the impressive results of deep generative models in complex manipulation tasks, the absence of a representation that…

机器人学 · 计算机科学 2024-09-10 Niklas Funk , Julen Urain , Joao Carvalho , Vignesh Prasad , Georgia Chalvatzaki , Jan Peters

The one-to-one mapping of control inputs to actuator outputs results in elaborate routing architectures that limit how complex fluidic soft robot behaviours can currently become. Embodied intelligence can be used as a tool to counteract…

机器人学 · 计算机科学 2024-04-02 Maks Gepner , Jonah Mack , Francesco Giorgio-Serchi , Adam A. Stokes

Modeling transformations between arbitrary data distributions is a fundamental scientific challenge, arising in applications like drug discovery and evolutionary simulation. While flow matching offers a natural framework for this task, its…

机器学习 · 计算机科学 2025-10-09 Shiye Su , Yuhui Zhang , Linqi Zhou , Rajesh Ranganath , Serena Yeung-Levy

Flow control with the goal of reducing the skin friction drag on the fluid-solid interface is an active fundamental research area, motivated by its potential for significant energy savings and reduced emissions in the transport sector.…

流体动力学 · 物理学 2017-05-24 Bettina Frohnapfel , Yosuke Hasegawa , Maurizio Quadrio

This paper describes a robust linear time-invariant output-feedback control strategy to reduce turbulent fluctuations, and therefore skin-friction drag, in wall-bounded turbulent fluid flows, that nonetheless gives performance guarantees in…

流体动力学 · 物理学 2016-03-25 Peter H. Heins , Bryn Ll. Jones , Ati S. Sharma