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This work presents a new approach for premixed turbulent combustion modeling based on convolutional neural networks (CNN). We first propose a framework to reformulate the problem of subgrid flame surface density estimation as a machine…

流体动力学 · 物理学 2019-08-02 C. J. Lapeyre , A. Misdariis , N. Cazard , D. Veynante , T. Poinsot

We introduce the concept of "dynamic image", a novel compact representation of videos useful for video analysis, particularly in combination with convolutional neural networks (CNNs). A dynamic image encodes temporal data such as RGB or…

计算机视觉与模式识别 · 计算机科学 2017-08-22 Hakan Bilen , Basura Fernando , Efstratios Gavves , Andrea Vedaldi

Computational saliency models for still images have gained significant popularity in recent years. Saliency prediction from videos, on the other hand, has received relatively little interest from the community. Motivated by this, in this…

计算机视觉与模式识别 · 计算机科学 2017-11-16 Cagdas Bak , Aysun Kocak , Erkut Erdem , Aykut Erdem

The recent computer graphics developments have upraised the quality of the generated digital content, astonishing the most skeptical viewer. Games and movies have taken advantage of this fact but, at the same time, these advances have…

计算机视觉与模式识别 · 计算机科学 2017-11-29 Edmar R. S. de Rezende , Guilherme C. S. Ruppert , Antonio Theophilo , Tiago Carvalho

Our research presents a comprehensive approach to leveraging mobile camera image data for real-time air quality assessment and recommendation. We develop a regression-based Convolutional Neural Network model and tailor it explicitly for air…

计算机视觉与模式识别 · 计算机科学 2025-01-08 Pritisha Sarkar , Duranta Durbaar Vishal Saha , Mousumi Saha

Motion blur is a fundamental problem in computer vision as it impacts image quality and hinders inference. Traditional deblurring algorithms leverage the physics of the image formation model and use hand-crafted priors: they usually produce…

计算机视觉与模式识别 · 计算机科学 2018-01-17 Huaijin Chen , Jinwei Gu , Orazio Gallo , Ming-Yu Liu , Ashok Veeraraghavan , Jan Kautz

This paper proposes a new residual convolutional neural network (CNN) architecture for single image depth estimation. Compared with existing deep CNN based methods, our method achieves much better results with fewer training examples and…

计算机视觉与模式识别 · 计算机科学 2017-05-02 Bo Li , Yuchao Dai , Huahui Chen , Mingyi He

We discuss a long-standing problem of how turbulence can be studied using observations of Doppler broadened emission and absorption lines. The focus of the present review is on two new techniques, the Velocity-Channel Analysis (VCA), which…

天体物理学 · 物理学 2011-05-10 A. Lazarian

Our work proposes a novel deep learning framework for estimating crowd density from static images of highly dense crowds. We use a combination of deep and shallow, fully convolutional networks to predict the density map for a given crowd…

计算机视觉与模式识别 · 计算机科学 2016-08-23 Lokesh Boominathan , Srinivas S S Kruthiventi , R. Venkatesh Babu

Fast prediction of permeability directly from images enabled by image recognition neural networks is a novel pore-scale modeling method that has a great potential. This article presents a framework that includes (1) generation of porous…

计算物理 · 物理学 2018-09-11 Jin-Long Wu , Xiao-Long Yin , Heng Xiao

Recovering structure and motion parameters given a image pair or a sequence of images is a well studied problem in computer vision. This is often achieved by employing Structure from Motion (SfM) or Simultaneous Localization and Mapping…

计算机视觉与模式识别 · 计算机科学 2018-11-07 Thanuja Dharmasiri , Andrew Spek , Tom Drummond

Traditional methods for enhancing tropical cyclone (TC) intensity from climate model outputs or projections have primarily relied on either dynamical or statistical downscaling. With recent advances in deep learning (DL) techniques, a…

大气与海洋物理 · 物理学 2025-11-10 Minh-Khanh Luong , Chanh Kieu

The pressure strain correlation plays a critical role in the Reynolds stress transport modelling. Accurate modelling of the pressure strain correlation leads to proper prediction of turbulence stresses and subsequently the other terms of…

流体动力学 · 物理学 2021-03-02 J P Panda , H V Warrior

It remains a challenge to simultaneously remove geometric distortion and space-time-varying blur in frames captured through a turbulent atmospheric medium. To solve, or at least reduce these effects, we propose a new scheme to recover a…

计算机视觉与模式识别 · 计算机科学 2014-01-20 Yuan Xie , Wensheng Zhang , Dacheng Tao , Wenrui Hu , Yanyun Qu , Hanzi Wang

Fluid turbulence is characterized by strong coupling across a broad range of scales. Furthermore, besides the usual local cascades, such coupling may extend to interactions that are non-local in scale-space. As such the computational…

Deblurring can not only provide visually more pleasant pictures and make photography more convenient, but also can improve the performance of objection detection as well as tracking. However, removing dynamic scene blur from images is a…

计算机视觉与模式识别 · 计算机科学 2023-01-19 Jiawei Zhang , Jinshan Pan , Daoye Wang , Shangchen Zhou , Xing Wei , Furong Zhao , Jianbo Liu , Jimmy Ren

Turbulence modeling is a critical component in numerical simulations of industrial flows based on Reynolds-averaged Navier-Stokes (RANS) equations. However, after decades of efforts in the turbulence modeling community, universally…

流体动力学 · 物理学 2017-03-22 Jian-Xun Wang , Jin-Long Wu , Heng Xiao

Visible images have been widely used for motion estimation. Thermal images, in contrast, are more challenging to be used in motion estimation since they typically have lower resolution, less texture, and more noise. In this paper, a novel…

计算机视觉与模式识别 · 计算机科学 2021-05-18 Weichen Dai , Yu Zhang , Shenzhou Chen , Donglei Sun , Da Kong

Computational color constancy refers to the estimation of the scene illumination and makes the perceived color relatively stable under varying illumination. In the past few years, deep Convolutional Neural Networks (CNNs) have delivered…

计算机视觉与模式识别 · 计算机科学 2019-07-12 Jun Zhang , Tong Zheng , Shengping Zhang , Meng Wang

Despite significant progress in image-based 3D scene flow estimation, the performance of such approaches has not yet reached the fidelity required by many applications. Simultaneously, these applications are often not restricted to…

计算机视觉与模式识别 · 计算机科学 2019-01-08 Aseem Behl , Despoina Paschalidou , Simon Donné , Andreas Geiger