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Every volumetric velocimetry measurements based on tracer (particles, bubbles, etc.) detection can be strongly influenced by the optical screening phenomenon. It has to be taken into account when the the statistical properties associated to…

Fluid Dynamics · Physics 2014-07-28 Tristan Cambonie , Jean-Luc Aider

Observing 3D magnetic fields, including orientation and strength, within the interstellar medium is vital but notoriously difficult. However, recent advances in our understanding of anisotropic magnetohydrodynamic (MHD) turbulence…

Astrophysics of Galaxies · Physics 2023-12-06 Yue Hu , A. Lazarian , Yan Wu , Chengcheng Fu

We discuss the possible role of reconnection in electro-magnetically dominated cores of relativistic AGN jets. We suggest that reconnection may proceed in a two-fold fashion: initial explosive collapse on the Alfven time-scale of a…

Astrophysics · Physics 2016-08-30 Maxim Lyutikov

Some of the most important probes of the quark-gluon plasma (QGP) produced in heavy ion collisions come from the analysis of how the shape and energy of jets are modified by passage through QGP. We model an ensemble of back-to-back dijets…

Nuclear Theory · Physics 2018-03-14 Jasmine Brewer , Krishna Rajagopal , Andrey Sadofyev , Wilke van der Schee

Mesh models are a promising approach for encoding the structure of 3D objects. Current mesh reconstruction systems predict uniformly distributed vertex locations of a predetermined graph through a series of graph convolutions, leading to…

Computer Vision and Pattern Recognition · Computer Science 2019-02-01 Edward J. Smith , Scott Fujimoto , Adriana Romero , David Meger

Implicit neural representations have shown promising potential for the 3D scene reconstruction. Recent work applies it to autonomous 3D reconstruction by learning information gain for view path planning. Effective as it is, the computation…

Robotics · Computer Science 2022-09-28 Jing Zeng , Yanxu Li , Yunlong Ran , Shuo Li , Fei Gao , Lincheng Li , Shibo He , Jiming chen , Qi Ye

Intensive VLBI monitoring programs of jets in AGN are showing the existence of intricate emission patterns, such as upstream motions or slow moving and quasi-stationary componentes trailing superluminal features. Relativistic hydrodynamic…

Astrophysics · Physics 2007-05-23 J. L. Gomez , J. M. Marti , I. Agudo , A. P. Marscher , S. G. Jorstad , M. A. Aloy

Sketch-based shape modeling aims to bridge the gap between 2D drawing and 3D modeling by providing an intuitive and accessible approach to create 3D shapes from 2D sketches. However, existing methods still suffer from limitations in…

Graphics · Computer Science 2023-09-13 Jie Zhou , Zhongjin Luo , Qian Yu , Xiaoguang Han , Hongbo Fu

Digital neuron reconstruction from 3D microscopy images is an essential technique for investigating brain connectomics and neuron morphology. Existing reconstruction frameworks use convolution-based segmentation networks to partition the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-19 Runkai Zhao , Heng Wang , Chaoyi Zhang , Weidong Cai

For explaining the broadband spectral shape of knots in the M87 jet from radio through optical to X-ray, we propose a modified synchrotron model that considers the integrated effect of particle injection from different acceleration sources…

Astrophysics · Physics 2009-11-13 Wen-Po Liu , Zhi-Qiang Shen

We propose a new method for segmentation-free joint estimation of orthogonal planes, their intersection lines, relationship graph and corners lying at the intersection of three orthogonal planes. Such unified scene exploration under…

Computer Vision and Pattern Recognition · Computer Science 2020-04-27 Christiane Sommer , Yumin Sun , Leonidas Guibas , Daniel Cremers , Tolga Birdal

Dents on the aircraft skin are frequent and may easily go undetected during airworthiness checks, as their inspection process is tedious and extremely subject to human factors and environmental conditions. Nowadays, 3D scanning technologies…

Computer Vision and Pattern Recognition · Computer Science 2023-02-27 Pasquale Lafiosca , Ip-Shing Fan , Nicolas P. Avdelidis

Most commercially available fixed-wing aerial vehicles (FWV) can carry only small, lightweight computing hardware such as Jetson TX2 onboard. Solving non-linear trajectory optimization on these computing resources is computationally…

Conventional methods of 3D object generative modeling learn volumetric predictions using deep networks with 3D convolutional operations, which are direct analogies to classical 2D ones. However, these methods are computationally wasteful in…

Computer Vision and Pattern Recognition · Computer Science 2017-06-22 Chen-Hsuan Lin , Chen Kong , Simon Lucey

Due to the inherent ill-posed nature of 2D-3D projection, monocular 3D object detection lacks accurate depth recovery ability. Although the deep neural network (DNN) enables monocular depth-sensing from high-level learned features, the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Qing Lian , Peiliang Li , Xiaozhi Chen

Owing to the recent, rapid development of computer technology, the resolution of atmospheric numerical models has increased substantially. With the use of next-generation supercomputers, atmospheric simulations using horizontal grid…

Numerical Analysis · Mathematics 2016-05-25 H. Yamazaki , T. Satomura , N. Nikiforakis

This work proposes a jointly optimized trajectory generation and camera control approach, enabling an autonomous agent, such as an unmanned aerial vehicle (UAV) operating in 3D environments, to plan and execute coverage trajectories that…

Recent radio VLBI observations of the relativistic jet in M87 radio galaxy have shown a triple-ridge structure that consists of the conventional limb-brightened feature and a central narrow ridge. Motivated by these observations, we examine…

High Energy Astrophysical Phenomena · Physics 2019-05-29 Taiki Ogihara , Kazuya Takahashi , Kenji Toma

We investigate the performance of a jet identification algorithm based on interaction networks (JEDI-net) to identify all-hadronic decays of high-momentum heavy particles produced at the LHC and distinguish them from ordinary jets…

Many analyses at the CERN LHC exploit the substructure of jets to identify heavy resonances produced with high momenta that decay into multiple quarks and/or gluons. This paper presents a new technique for correcting the substructure of…

High Energy Physics - Experiment · Physics 2025-11-18 CMS Collaboration