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The interest in matching non-rigidly deformed shapes represented as raw point clouds is rising due to the proliferation of low-cost 3D sensors. Yet, the task is challenging since point clouds are irregular and there is a lack of intrinsic…

计算机视觉与模式识别 · 计算机科学 2025-01-10 Huajian Zeng , Maolin Gao , Daniel Cremers

Although an ever-growing number of applications employ deep learning based systems for prediction, decision-making, or state estimation, almost no certification processes have been established that would allow such systems to be deployed in…

机器学习 · 计算机科学 2024-03-25 Romeo Valentin

Defects in crystalline materials control the properties of materials, and their characterization focuses our strategies to optimize performance. Electron microscopy has served as the backbone of our understanding of defect structure and…

材料科学 · 物理学 2019-03-19 Daniel S. Gianola , T. Ben Britton , Stefan Zaefferer

A shape sensitive, variational approach for the matching of surfaces considered as thin elastic shells is investigated. The elasticity functional to be minimized takes into account two different types of nonlinear energies: a membrane…

最优化与控制 · 数学 2021-06-09 José A. Iglesias , Martin Rumpf , Otmar Scherzer

Designing a network on 3D surface for non-rigid shape analysis is a challenging task. In this work, we propose a novel spectral transform network on 3D surface to learn shape descriptors. The proposed network architecture consists of four…

计算机视觉与模式识别 · 计算机科学 2018-10-23 Ruixuan Yu , Jian Sun , Huibin Li

Image-based jet analysis is built upon the jet image representation of jets that enables a direct connection between high energy physics and the fields of computer vision and deep learning. Through this connection, a wide array of new jet…

数据分析、统计与概率 · 物理学 2020-12-21 Michael Kagan

The aerodynamic optimization process of cars requires multiple iterations between aerodynamicists and stylists. Response Surface Modeling and Reduced-Order Modeling are commonly used to eliminate the overhead due to Computational Fluid…

计算工程、金融与科学 · 计算机科学 2022-05-26 Sam Jacob Jacob , Markus Mrosek , Carsten Othmer , Harald Köstler

We develop data-driven algorithms to fully automate sensor fault detection in systems governed by underlying physics. The proposed machine learning method uses a time series of typical behavior to approximate the evolution of measurements…

In this paper, we propose a machine learning approach to recognise engineering shape features such as holes, slots, etc. in a CAD mesh model. With the advent of digital archiving, newer manufacturing techniques such as 3D printing, scanning…

计算机视觉与模式识别 · 计算机科学 2021-12-16 Lakshmi Priya Muraleedharan , Ramanathan Muthuganapathy

This paper investigates the problem of aerial vehicle recognition using a text-guided deep convolutional neural network classifier. The network receives an aerial image and a desired class, and makes a yes or no output by matching the image…

计算机视觉与模式识别 · 计算机科学 2018-08-28 Amir Soleimani , Nasser M. Nasrabadi , Elias Griffith , Jason Ralph , Simon Maskell

We introduce the Weak-form Estimation of Nonlinear Dynamics (WENDy) method for estimating model parameters for non-linear systems of ODEs. Without relying on any numerical differential equation solvers, WENDy computes accurate estimates and…

机器学习 · 计算机科学 2023-11-27 David M. Bortz , Daniel A. Messenger , Vanja Dukic

For sequences of complex 3D shapes in time we present a general approach to detect patterns for their analysis and to predict the deformation by making use of structural components of the complex shape. We incorporate long short-term memory…

计算机视觉与模式识别 · 计算机科学 2020-09-09 Sara Hahner , Rodrigo Iza-Teran , Jochen Garcke

Ultrasonic guided wave technology has played a significant role in the field of non-destructive testing as it employs acoustic waves that have advantages of high propagation efficiency and low energy consumption during the inspect process.…

计算工程、金融与科学 · 计算机科学 2020-09-15 Qi Li , Yihui Da , Yinghong Zhang , Bin Wang , Dianzi Liu , Zhenghua Qian

Nondestructive testing (NDT) is widely applied to defect identification of turbine components during manufacturing and operation. Operational efficiency is key for gas turbine OEM (Original Equipment Manufacturers). Automating the…

计算机视觉与模式识别 · 计算机科学 2022-08-10 Andrea Panizza , Szymon Tomasz Stefanek , Stefano Melacci , Giacomo Veneri , Marco Gori

It is usually hard for a learning system to predict correctly on rare events that never occur in the training data, and there is no exception for segmentation algorithms. Meanwhile, manual inspection of each case to locate the failures…

计算机视觉与模式识别 · 计算机科学 2019-08-22 Fengze Liu , Yingda Xia , Dong Yang , Alan Yuille , Daguang Xu

This work introduces a computational framework for applying absolute electrical impedance tomography to head imaging without accurate information on the head shape or the electrode positions. A library of fifty heads is employed to build a…

数值分析 · 数学 2019-02-18 Valentina Candiani , Antti Hannukainen , Nuutti Hyvönen

Computing the electric eddy currents in non-linear materials, such as superconductors, is \E{not straightforward}. The design of superconducting magnets and power applications needs electromagnetic computer modeling, being in many cases a…

超导电性 · 物理学 2017-06-02 Enric Pardo , Milan Kapolka

We propose a new method for testing antenna arrays that records the radiating electromagnetic (EM) field using an absorbing material and evaluating the resulting thermal image series through an AI using a conditional encoder-decoder model.…

机器学习 · 计算机科学 2021-11-30 Hans Hao-Hsun Hsu , Jiawen Xu , Ravi Sama , Matthias Kovatsch

Recently we have developed a spin Hall magnetoresistance (SMR) sensor which operates under AC bias and sense currents. Here we demonstrate both theoretically and experimentally that the SMR sensor is uniquely suited for eddy current testing…

材料科学 · 物理学 2020-05-12 Yanjun Xu , Yumeng Yang , Yihong Wu

Consistency management, the ability to detect, diagnose and handle inconsistencies, is crucial during the development process in Model-driven Engineering (MDE). As the popularity and application scenarios of MDE expanded, a variety of…

软件工程 · 计算机科学 2016-11-16 Nuno Macedo , Tiago Jorge , Alcino Cunha