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Fringe projection profilometry has been increasingly sought and applied in dynamic three-dimensional (3D) shape measurement. In this work, a robust and high-efficiency 3D measurement based on Gray-code light is proposed. Unlike the…

图像与视频处理 · 电气工程与系统科学 2020-01-22 Zhoujie Wu , Wenbo Guo , Yueyang Li , Yihang Liu , Qican Zhang

SAXO+ is a planned enhancement of the existing SAXO, the VLT/ SPHERE adaptive optics system, deployed on ESO's Very Large Telescope. This upgrade is designed to significantly enhance the instrument's capacity to detect and analyze young…

Servo error pre-compensation and feedrate optimization are often performed independently to improve the accuracy and speed of manufacturing machines. However, this independent approach leads to unnecessary trade-offs between productivity…

系统与控制 · 电气工程与系统科学 2020-07-13 Heejin Kim , Chinedum E. Okwudire

Dynamic SLAM methods jointly estimate for the static and dynamic scene components, however existing approaches, while accurate, are computationally expensive and unsuitable for online applications. In this work, we present the first…

机器人学 · 计算机科学 2025-09-11 Jesse Morris , Yiduo Wang , Viorela Ila

A new generation of storage ring-based light source, called diffraction-limited storage ring (DLSR), with emittance approaching the diffraction limit for multi-keV photons by means of multi-bend achromat lattice, has attracted worldwide and…

加速器物理 · 物理学 2016-08-03 Gang Xu , Yi Jiao , Yue-Mei Peng

Due to its exceptional dimensional stability in harsh thermal conditions and excellent mechanical and optical properties, Corning ultra-low expansion (ULE) glass is the material of choice in many high-demanding fields such as aerospace,…

光学 · 物理学 2024-07-01 Enrico Casamenti , Alessandro Bruno , Pietro Bernasconi , Andrea Lovera

Speckle correlation based optical levers SC OptLev possess attractive characteristics suitable for sensing small changes in the angular orientations of surfaces. In this study, we propose and demonstrate a spatial multiplexing technique for…

仪器与探测器 · 物理学 2019-09-06 Vijayakumar Anand , Shanti Bhattacharya , Joseph Rosen

This paper presents an approach to radar odometry on $SE(3)$ which utilizes a constant acceleration motion prior. The motion prior is integrated into a sliding window optimization scheme. We use the Magnus expansion to accurately integrate…

机器人学 · 计算机科学 2022-09-14 Kyle Retan , Frasher Loshaj , Michael Heizmann

Three dimensional (3D) topological Dirac materials are under intensive study recently. The layered compound ZrTe$_5$ has been suggested to be one of them by transport and ARPES experiments. Here, we perform infrared reflectivity measurement…

材料科学 · 物理学 2015-08-12 R. Y. Chen , S. J. Zhang , J. A. Schneeloch , C. Zhang , Q. Li , G. D. Gu , N. L. Wang

We propose Stereo Direct Sparse Odometry (Stereo DSO) as a novel method for highly accurate real-time visual odometry estimation of large-scale environments from stereo cameras. It jointly optimizes for all the model parameters within the…

计算机视觉与模式识别 · 计算机科学 2017-08-29 Rui Wang , Martin Schwörer , Daniel Cremers

Synthetic Aperture Radar (SAR) utilizes the movement of the radar antenna over a specific area of interest to achieve higher spatial resolution imaging. In this paper, we aim to investigate the realization of SAR imaging for a stationary…

信息检索 · 计算机科学 2024-09-19 Yifan Sun , Rang Liu , Zhiping Lu , Honghao Luo , Ming Li , Qian Liu

The coming years will see routine use of solar data of unprecedented spatial and spectral resolution, time cadence, and completeness in the wavelength domain. To capitalize on the soon to be available radio facilities such as the expanded…

太阳与恒星天体物理 · 物理学 2015-05-20 Gregory D. Fleishman , Gelu M. Nita , Dale E. Gary

Plasma-terminating disruptions represent a critical outstanding issue for reactor-relevant tokamaks. ITER will use shattered pellet injection (SPI) as its disruption mitigation system to reduce heat loads, vessel forces, and to suppress the…

3D perception using sensors under vehicle industrial standard is the rigid demand in autonomous driving. MEMS LiDAR emerges with irresistible trend due to its lower cost, more robust, and meeting the mass-production standards. However, it…

计算机视觉与模式识别 · 计算机科学 2021-02-17 Jianing Zhang , Wei Li , Honggang Gou , Lu Fang , Ruigang Yang

Recently, the multilevel diffractive lenses (MDLs) have attracted considerable attention mainly due to their superior wave focusing performance; however, efforts to correct the chromatic aberration are still in progress. Here, we…

光学 · 物理学 2021-04-28 Bumin K. Yildirim , Hamza Kurt , Mirbek Turduev

Collective responses of localized surface plasmon resonances, known as surface lattice resonances (SLRs) in metal nanoparticle arrays, can lead to high quality factors (~100), large local-field enhancements and strong light-matter…

光学 · 物理学 2018-05-23 Mikko J. Huttunen , Payman Rasekh , Robert W. Boyd , Ksenia Dolgaleva

Applying time differential perturbed angular correlation (TDPAC) spectroscopy and \emph{ab initio} calculations, we have investigated possible lattice instabilities in Sr$_{2}$RuO$_{4}$ by studying the electric quadrupole interaction of a…

强关联电子 · 物理学 2007-05-23 S. N. Mishra , M. Rots , S. Cottenier

In order to study the dynamic response of the material and the physical mechanism of the fluid dynamics, an accelerator scenario which can be applied to hard X-ray free electron laser and high energy electron radiography was proposed. This…

Grid regulators and participants are paying increasing attention to Dynamic Line Ratings (DLR) as a new approach to address transmission system bottlenecks. In this paper, a thorough comparison of DLR, Ambient Adjusted Ratings (AAR), and…

系统与控制 · 电气工程与系统科学 2025-05-13 Thomas Lee , Vineet Jagadeesan Nair , Andy Sun

We investigate the effects of coherent isotropic continuum scattering on the formation of spectral lines in local thermodynamic equilibrium (LTE) using 3D hydrodynamical and 1D hydrostatic model atmospheres of red giant stars. Continuum…

太阳与恒星天体物理 · 物理学 2011-08-18 W. Hayek , M. Asplund , R. Collet , Å. Nordlund