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Thermographic photothermal super resolution reconstruction enables the resolution of internal defects/inhomogeneities below the classical limit which is governed by the diffusion properties of thermal wave propagation. Based on a…

图像与视频处理 · 电气工程与系统科学 2022-05-11 Julien Lecompagnon , Samim Ahmadi , Philipp Hirsch , Christian Rupprecht , Mathias Ziegler

Dense reconstructions often contain errors that prior work has so far minimised using high quality sensors and regularising the output. Nevertheless, errors still persist. This paper proposes a machine learning technique to identify errors…

计算机视觉与模式识别 · 计算机科学 2018-01-31 Michael Tanner , Stefan Saftescu , Alex Bewley , Paul Newman

This article presents original work combining a NURBS-based inverse analysis with both kinematic and constitutive nonlinearities to recover the applied loads and deformations of thin shell structures. The inverse formulation is tackled by…

计算工程、金融与科学 · 计算机科学 2019-02-07 N. Vu-Bac , T. X. Duong , T. Lahmer , X. Zhuang , R. A. Sauer , H. S. Parke , T. Rabczuk

In computed tomography (CT), the forward model consists of a linear Radon transform followed by an exponential nonlinearity based on the attenuation of light according to the Beer-Lambert Law. Conventional reconstruction often involves…

计算机视觉与模式识别 · 计算机科学 2026-03-25 Sara Fridovich-Keil , Fabrizio Valdivia , Gordon Wetzstein , Benjamin Recht , Mahdi Soltanolkotabi

Coherent imaging techniques such as ptychography offer powerful capabilities for 3D resolution of nanoscale structures. By application in grazing incidence, such techniques may achieve exceptional surface sensitivity as demonstrated by…

Limited-angle electron tomography aims to reconstruct 3D shapes from 2D projections of Transmission Electron Microscopy (TEM) within a restricted range and number of tilting angles, but it suffers from the missing-wedge problem that causes…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Zhantao Deng , Mériem Er-Rafik , Anna Sushko , Cécile Hébert , Pascal Fua

Sound propagation in the ocean is considered. We demonstrate a novel algorithm for full wavefield reconstruction using pointwise measurements by means of a vertical array. The algorithm is based on the so-called discrete variable…

信号处理 · 电气工程与系统科学 2021-03-11 Denis V. Makarov , Pavel S. Petrov

Accurate reconstruction of arbitrary-shaped long slender continuum bodies, such as guidewires, catheters and other soft continuum manipulators, is essential for accurate mechanical simulation. However, existing image-based reconstruction…

机器人学 · 计算机科学 2026-03-25 Yaozhi Zhang , Shun Yu , Yugang Zhang , Yang Liu

We present a method to detect discontinuity curves, usually called faults, from a set of scattered data. The scheme first extracts from the data set a subset of points close to the faults. This selection is based on an indicator obtained by…

数值分析 · 数学 2019-05-16 Cesare Bracco , Oleg Davydov , Carlotta Giannelli , Alessandra Sestini

The goal of this work is to propose a robust, fast, and fully automatic method for personalized cranial defect reconstruction and implant modeling. We propose a two-step deep learning-based method using a modified U-Net architecture to…

图像与视频处理 · 电气工程与系统科学 2022-04-14 Marek Wodzinski , Mateusz Daniol , Miroslaw Socha , Daria Hemmerling , Maciej Stanuch , Andrzej Skalski

This study concentrates on advancing mathematical and computational methodology for radar tomography imaging in which the unknown volumetric velocity distribution of a wave within a bounded domain is to be reconstructed. Our goal is to…

天体物理仪器与方法 · 物理学 2018-04-04 Mika Takala , Defne Us , Sampsa Pursiainen

Imaging 3D nano-structures at very high resolution is crucial in a variety of scientific fields. However, due to fundamental limitations of light propagation we can only measure the object indirectly via 2D intensity measurements of the 3D…

图像与视频处理 · 电气工程与系统科学 2020-02-28 Zalan Fabian , Justin Haldar , Richard Leahy , Mahdi Soltanolkotabi

Limited-Angle Computed Tomography (LACT) is a challenging inverse problem where missing angular projections lead to incomplete sinograms and severe artifacts in the reconstructed images. While recent learning-based methods have demonstrated…

图像与视频处理 · 电气工程与系统科学 2025-07-09 Jiaqi Guo , Santiago López-Tapia

Microstructure reconstruction, a major component of inverse computational materials engineering, is currently advancing at an unprecedented rate. While various training-based and training-free approaches are developed, the majority of…

In robotic surgery, pattern cutting through a deformable material is a challenging research field. The cutting procedure requires a robot to concurrently manipulate a scissor and a gripper to cut through a predefined contour trajectory on…

机器人学 · 计算机科学 2019-02-15 Ngoc Duy Nguyen , Thanh Nguyen , Saeid Nahavandi , Asim Bhatti , Glenn Guest

We consider an inverse problem for the elastic wave of simultaneously reconstructing the impedance and the geometric information of the bounded body that is occupied by a homogeneous and isotropic elastic medium from the measured Cauchy…

数值分析 · 数学 2025-06-26 Yao Sun , Yan Chang , Yukun Guo

Robot-guided catheter insertion has the potential to deliver urgent medical care in situations where medical personnel are unavailable. However, this technique requires accurate and reliable segmentation of anatomical landmarks in the body.…

图像与视频处理 · 电气工程与系统科学 2023-01-19 Cecilia Morales , Jason Yao , Tejas Rane , Robert Edman , Howie Choset , Artur Dubrawski

Speed-of-sound is a biomechanical property for quantitative tissue differentiation, with great potential as a new ultrasound-based image modality. A conventional ultrasound array transducer can be used together with an acoustic mirror, or…

计算机视觉与模式识别 · 计算机科学 2018-07-20 Valery Vishnevskiy , Sergio J Sanabria , Orcun Goksel

This article present a new method to reconstruct slowly varying width defects in 2D waveguides using one-side section measurements at locally resonant frequencies. At these frequencies, locally resonant modes propagate in the waveguide up…

数值分析 · 数学 2022-12-15 Angèle Niclas , Laurent Seppecher

This paper is concerned with the inverse scattering problem by an unbounded rough surface. A direct imaging method is proposed to reconstruct the rough surface from the scattered near-field Cauchy data generating by point sources and…

数值分析 · 数学 2018-05-01 Xiaoli Liu , Bo Zhang , Haiwen Zhang