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Image restoration aims to recover high-quality (HQ) images from degraded low-quality (LQ) ones by reversing the effects of degradation. Existing generative models for image restoration, including diffusion and score-based models, often…

计算机视觉与模式识别 · 计算机科学 2025-06-23 Haina Qin , Wenyang Luo , Libin Wang , Dandan Zheng , Jingdong Chen , Ming Yang , Bing Li , Weiming Hu

In this paper, we present ScalarFlow, a first large-scale data set of reconstructions of real-world smoke plumes. We additionally propose a framework for accurate physics-based reconstructions from a small number of video streams. Central…

图形学 · 计算机科学 2020-11-23 Marie-Lena Eckert , Kiwon Um , Nils Thuerey

We present a neural-field-based large-scale reconstruction system that fuses lidar and vision data to generate high-quality reconstructions that are geometrically accurate and capture photo-realistic textures. This system adapts the…

机器人学 · 计算机科学 2025-02-18 Yifu Tao , Yash Bhalgat , Lanke Frank Tarimo Fu , Matias Mattamala , Nived Chebrolu , Maurice Fallon

Support vector regression (SVR) is one of the most popular machine learning algorithms aiming to generate the optimal regression curve through maximizing the minimal margin of selected training samples, i.e., support vectors. Recent…

机器学习 · 计算机科学 2019-05-07 Gaoyang Li , Jinyu Yang , Chunguo Wu , Qin Ma

Magnetic Resonance Spectroscopic Imaging (MRSI) is an essential tool for quantifying metabolites in the body, but the low spatial resolution limits its clinical applications. Deep learning-based super-resolution methods provided promising…

图像与视频处理 · 电气工程与系统科学 2022-07-22 Siyuan Dong , Gilbert Hangel , Eric Z. Chen , Shanhui Sun , Wolfgang Bogner , Georg Widhalm , Chenyu You , John A. Onofrey , Robin de Graaf , James S. Duncan

Large Scale Particle Image Velocimetry (LSPIV) is widely recognized as a reliable method to measure water surface velocity field in open channels and rivers. LSPIV technique is based on a camera view that frames the water surface in a…

流体动力学 · 物理学 2016-07-15 Benetazzo , A. , Gamba , M. , Barbariol , F

Flow-based text-to-image (T2I) models excel at prompt-driven image generation, but falter on Image Restoration (IR), often "drifting away" from being faithful to the measurement. Prior work mitigate this drift with data-specific flows or…

图像与视频处理 · 电气工程与系统科学 2026-05-26 Tharindu Wickremasinghe , Chenyang Qi , Harshana Weligampola , Zhengzhong Tu , Stanley H. Chan

The global degradation of water resources is a matter of great concern, especially for the survival of humanity. The effective monitoring and management of existing water resources is necessary to achieve and maintain optimal water quality.…

机器学习 · 计算机科学 2020-03-26 Dhruti Dheda , Ling Cheng

State-of-the-art neural network models for optical flow estimation require a dense correlation volume at high resolutions for representing per-pixel displacement. Although the dense correlation volume is informative for accurate estimation,…

计算机视觉与模式识别 · 计算机科学 2021-04-07 Shihao Jiang , Yao Lu , Hongdong Li , Richard Hartley

We analyze representative ill-posed scenarios of tomographic PIV with a focus on conditions for unique volume reconstruction. Based on sparse random seedings of a region of interest with small particles, the corresponding systems of linear…

数值分析 · 数学 2012-09-20 Stefania Petra , Christoph Schnörr , Andreas Schröder

We infer both microscopic and macroscopic behaviors of a three-dimensional chaotic fluid flow using reservoir computing. In our procedure of the inference, we assume no prior knowledge of a physical process of a fluid flow except that its…

计算物理 · 物理学 2018-09-12 Kengo Nakai , Yoshitaka Saiki

We formulate and solve a Bayesian inverse Navier-Stokes (N-S) problem that assimilates velocimetry data in order to jointly reconstruct a 3D flow field and learn the unknown N-S parameters, including the boundary position. By hardwiring a…

流体动力学 · 物理学 2024-12-12 Alexandros Kontogiannis , Scott V. Elgersma , Andrew J. Sederman , Matthew P. Juniper

Photo-realistic image restoration algorithms are typically evaluated by distortion measures (e.g., PSNR, SSIM) and by perceptual quality measures (e.g., FID, NIQE), where the desire is to attain the lowest possible distortion without…

图像与视频处理 · 电气工程与系统科学 2025-02-05 Guy Ohayon , Tomer Michaeli , Michael Elad

In this paper an identification method for state-space LPV models is presented. The method is based on a particular parameterization that can be written in linear regression form and enables model estimation to be handled using…

最优化与控制 · 数学 2018-03-28 R. A. Romano , P. Lopes dos Santos , Felipe Pait , T-P Perdicoúlis , José A. Ramos

A machine-learning strategy for investigating the stability of fluid flow problems is proposed herein. The goal is to provide a simple yet robust methodology to find a nonlinear mapping from the parametric space to an indicator representing…

流体动力学 · 物理学 2026-01-06 David J. Silvester

Flow-field reconstruction from sparse sensor measurements remains a central challenge in modern fluid dynamics, as the need for high-fidelity data often conflicts with practical limits on sensor deployment. Existing deep learning-based…

计算工程、金融与科学 · 计算机科学 2026-05-15 Ruoyan Li , Guancheng Wan , Zijie Huang , Zixiao Liu , Haixin Wang , Xiao Luo , Wei Wang , Yizhou Sun

Estimation of the frequency and duration of logos in videos is important and challenging in the advertisement industry as a way of estimating the impact of ad purchases. Since logos occupy only a small area in the videos, the popular…

图像与视频处理 · 电气工程与系统科学 2020-05-20 Bochen Guan , Hanrong Ye , Hong Liu , William A. Sethares

Image-to-SVG reconstruction aims to produce vector graphics that are faithful to raster inputs and easy to edit. Existing methods face a structural trade-off in how vector structure is parameterized, including how many paths represent an…

图形学 · 计算机科学 2026-05-20 Mengnan Jiang , Christian Franke , Michele Franco Adesso , Antonio Haas , Grace Li Zhang

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

The aim of this paper is the reconstruction of a smooth surface from an unorganized point cloud sampled by a closed surface, with the preservation of geometric shapes, without any further information other than the point cloud. Implicit…

计算机视觉与模式识别 · 计算机科学 2023-11-01 Yesom Park , Taekyung Lee , Jooyoung Hahn , Myungjoo Kang