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Correcting motion artifacts in MRI is important, as they can hinder accurate diagnosis. However, evaluating deep learning-based and classical motion correction methods remains fundamentally difficult due to the lack of accessible…

图像与视频处理 · 电气工程与系统科学 2025-06-09 Kun Wang , Tobit Klug , Stefan Ruschke , Jan S. Kirschke , Reinhard Heckel

We consider geometry parameter estimation in industrial sawmill fan-beam X-ray tomography. In such industrial settings, scanners do not always allow identification of the location of the source-detector pair, which creates the issue of…

计算工程、金融与科学 · 计算机科学 2023-12-11 Angelina Senchukova , Jarkko Suuronen , Jere Heikkinen , Lassi Roininen

Magnetic interaction between a weighing sample and an external magnetic field allows to measure characteristics of magnetic field (a sample with known magnetic characteristics), as well as the magnetic properties of a sample (a known…

The nitrogen-vacancy (NV) center in diamond has become a widely used platform for quantum sensing. The four NV axes in mono-crystalline diamond specifically allow for vector magnetometry, with magnetic-field sensitivities reaching down to…

In phase-shifting profilometry (PSP), any motion during the acquisition of fringe patterns can introduce errors because it assumes both the object and measurement system are stationary. Therefore, we propose a method to pixel-wise reduce…

计算机视觉与模式识别 · 计算机科学 2024-01-30 Sanghoon Jeon , Hyo-Geon Lee , Jae-Sung Lee , Bo-Min Kang , Byung-Wook Jeon , Jun Young Yoon , Jae-Sang Hyun

In a scheme of nonadiabatic purely geometric quantum gates in nuclear magnetic resonance(NMR) systems we propose proper magnitudes of magnetic fields that are suitable for an experiment. We impose a natural condition and reduce the degree…

量子物理 · 物理学 2009-11-10 Kazuto Oshima , Koji Azuma

We propose an efficient algorithm for the evaluation of the potential and its gradient of gravitational/electrostatic $N$-body systems, which we call particle mesh multipole method (PMMM or PM$^3$). PMMM can be understood both as an…

天体物理仪器与方法 · 物理学 2014-10-20 Keigo Nitadori

Particle-based shape modeling (PSM) is a family of approaches that automatically quantifies shape variability across anatomical cohorts by positioning particles (pseudo landmarks) on shape surfaces in a consistent configuration. Recent…

计算机视觉与模式识别 · 计算机科学 2025-07-11 Hong Xu , Shireen Y. Elhabian

A recently introduced technique of topology sensitivity in method of moments is extended by the possibility of adding degrees-of-freedom (reconstruct) into underlying structure. The algebraic formulation is inversion-free, suitable for…

计算物理 · 物理学 2019-09-11 Miloslav Capek , Lukas Jelinek , Mats Gustafsson

The electric magnetochiral anisotropy is a nonreciprocal phenomenon accessible via second harmonic transport in noncentrosymmetric, time-reversal invariant materials, in which the rectification of current, ${\bf I}$, can be controlled by an…

We present a cost-efficient and versatile method to map an unknown 3D freeform surface using only sparse measurements while the end-effector of a robotic manipulator moves along the surface. The geometry is locally approximated by a plane,…

机器人学 · 计算机科学 2021-10-08 Manuel Amersdorfer , Thomas Meurer

In motion tracking of connected multi-body systems Inertial Measurement Units (IMUs) are used in a wide variety of applications, since they provide a low-cost easy-to-use method for orientation estimation. However, in indoor environments or…

系统与控制 · 电气工程与系统科学 2021-08-11 Dustin Lehmann , Daniel Laidig , Raphael Deimel , Thomas Seel

We present a method of calculation of the effective magnetic permeability of magnonic metamaterials containing periodically arranged magnetic inclusions of arbitrary shapes. The spectrum of spin wave modes confined in the inclusions is…

Modern coordinate measurement machines (CMM) are universal tools to measure geometric features of complex three-dimensional workpieces. To use them as reliable means of quality control, the suitability of the device for the specific…

仪器与探测器 · 物理学 2019-07-25 Daniel Heißelmann , Matthias Franke , Kerstin Rost , Klaus Wendt , Thomas Kistner , Carsten Schwehn

The possibility that the magnetic dipole moment (MDM) of light charged vector mesons could be measured from radiative processes involving the production (\tau \to \rho \nu \gamma) and decay(\rho \to \pi \pi \gamma) of vector mesons is…

高能物理 - 唯象学 · 物理学 2007-05-23 G. Toledo Sanchez

Vector field measurement is demonstrated with an all-optical scalar atomic magnetometer using intrinsic parameters related to its scalar operation. The Bell-Bloom type atomic magnetometer measures the Larmor precession of cesium atoms…

原子物理 · 物理学 2021-02-02 Rui Zhang , Rahul Mhaskar , Ken Smith , Easswar Balasubramaniam , Mark Prouty

The Fewster-Verch (FV) framework provides a local and covariant approach for defining measurements in quantum field theory (QFT). Within this framework, a probe QFT represents the measurement device, which, after interacting with the target…

高能物理 - 理论 · 物理学 2025-10-29 Jan Mandrysch , Miguel Navascués

The lower critical magnetic field, $H_{c1}$, of superconductors is measured by using ensembles of NV-centers-in-diamond optical magnetometry. The technique is minimally invasive, and has sub-gauss field sensitivity and sub-$\mu$m spatial…

超导电性 · 物理学 2019-01-23 K. R. Joshi , N. M. Nusran , K. Cho , M. A. Tanatar , W. R. Meier , S. L. Bud'ko , P. C. Canfield , R. Prozorov

To deal with the multi-scale nature of the quench propagation problem in superconducting magnets, this work presents a quasi-three-dimensional (Q3D) approach combining a two-dimensional finite-element method (FEM) in the transversal…

计算工程、金融与科学 · 计算机科学 2021-11-30 Laura A. M. D'Angelo , Jonas Christ , Herbert De Gersem

Geometric moment invariants (GMIs) have been widely used as basic tool in shape analysis and information retrieval. Their structure and characteristics determine efficiency and effectiveness. Two fundamental building blocks or generating…

计算机视觉与模式识别 · 计算机科学 2017-05-26 Erbo Li , Yazhou Huang , Dong Xu , Hua Li
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