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Micro-drones can be integrated into various industrial applications but are constrained by their computing power and expert pilots, a secondary challenge. This study presents a computationally-efficient deep convolutional neural network…

The goal of non-line-of-sight (NLOS) imaging is to image objects occluded from the camera's field of view using multiply scattered light. Recent works have demonstrated the feasibility of two-bounce (2B) NLOS imaging by scanning a laser and…

图像与视频处理 · 电气工程与系统科学 2023-04-05 Siddharth Somasundaram , Akshat Dave , Connor Henley , Ashok Veeraraghavan , Ramesh Raskar

As neutrinos become a significant background for projected dark matter experiments, the community will become concerned with determining if events counted in a dark matter experiment are good dark matter candidates or low-energy neutrinos…

高能物理 - 唯象学 · 物理学 2016-05-09 Nicole Hartman , Stephen Sekula

We report the measurement of the time-of-flight of ~17 GeV muon neutrinos on the CNGS baseline (732 km) with the Large Volume Detector (LVD) at the Gran Sasso Laboratory. The CERN-SPS accelerator has been operated from May 10th to May 24th…

A calorimetric-time-of-flight (CTOF) technique was used for real-time, high-precision measurement of the neutron spectrum at an angle of 175 deg from the initial proton beam direction, which hits a face plane of a cylindrical copper target…

To mitigate spoofing attacks targeting global navigation satellite systems (GNSS) receivers, one promising method is to rely on alternative time sources, such as network-based synchronization, in order to detect clock offset discrepancies…

密码学与安全 · 计算机科学 2022-02-23 M. Spanghero , P. Papadimitratos

The paper aims to emphasise how switched systems can be analysed with elementary techniques which require only undergraduate-level linear algebra and differential equations. It is also emphasised how math software can become useful for…

计算工程、金融与科学 · 计算机科学 2018-08-09 S. Kadyrov , P. S. Skrzypacz , Y. L. Familiant

To reconstruct a radioactive tracer distribution with positron emission tomography (PET), the background attenuation correction is needed to eliminate image artifacts. Recent research shows that time-of-flight (TOF) PET data determine the…

医学物理 · 物理学 2013-12-30 Qingsong Yang , Wenxiang Cong , Ge Wang

We introduce an interferometric technique for passive time-of-flight imaging and depth sensing at micrometer axial resolutions. Our technique uses a full-field Michelson interferometer, modified to use sunlight as the only light source. The…

计算机视觉与模式识别 · 计算机科学 2023-03-29 Alankar Kotwal , Anat Levin , Ioannis Gkioulekas

We present a Monte-Carlo package for simulation of high-redshift supernova data, SNOC. Optical and near-infrared photons from supernovae are ray-traced over cosmological distances from the simulated host galaxy to the observer at Earth. The…

天体物理学 · 物理学 2009-11-07 A. Goobar , E. Mortsell , R. Amanullah , M. Goliath , L. Bergstrom , T. Dahlen

The aim of this work is to develop high precision Time-of-Flight (TOF) devices based on high refractive index solid Cherenkov radiators read out by silicon photomultipliers (SiPMs). Cherenkov light is prompt and therefore ideal for reaching…

In this article, we present the results of using Convolutional Auto-Encoders for de-noising raw data for CLAS12 drift chambers. The de-noising neural network provides increased efficiency in track reconstruction and also improved…

仪器与探测器 · 物理学 2022-06-14 Gagik Gavalian , Polykarpos Thomadakis , Angelos Angelopoulos , Nikos Chrisochoides

A new measurement of the $^{235}$U(n,f) cross section was performed at the neutron time-of-flight facility n_TOF at CERN. The experiment focused on neutron energies from 20 MeV to several hundred MeV, and was normalized to neutron…

Estimation of time delays from a noisy and gapped data is one of the simplest data analysis problems in astronomy by its formulation. But as history of real experiments show, the work with observed data sets can be quite complex and…

天体物理仪器与方法 · 物理学 2011-05-31 A. Hirv , N. Olspert , J. Pelt

A design study of a horizontal neutron reflectometer adapted to the general baseline of the long pulse European Spallation Source (ESS) is presented. The instrument layout comprises solutions for the neutron guide, high-resolution pulse…

仪器与探测器 · 物理学 2015-06-17 D. Nekrassov , M. Trapp , K. Lieutenant , J. -F. Moulin , M. Strobl , R. Steitz

This work is the second part of a simulation study investigating the processing of densely packed and moving granular assemblies by positron emission particle tracking (PEPT). Since medical PET scanners commonly used for PEPT are very…

Data reduction techniques published so far for the CoRoT N2 data product were targeted primarily on the detection of extrasolar planets. Since the whole dataset has been released, specific algorithms are required to process the lightcurves…

天体物理仪器与方法 · 物理学 2015-03-20 Joerg Weingrill

Recent advances with space navigation technologies developed by NASA in space-based atomic clocks and pulsar X-ray navigation combined with past successes in autonomous navigation using optical imaging, brings to the forefront the need to…

系统与控制 · 电气工程与系统科学 2022-05-19 Todd Ely , Shyam Bhaskaran , Nicholas Bradley , T. Joseph W. Lazio , Tomas Martin-Mur

A Neutron Time-Of-Flight (NTOF) spectrometer based on Heavy Ion Research Facility in Lanzhou (HIRFL) is developed for studies of neutron production of proton induced spallation reactions related to the ADS project. After the presentation of…

仪器与探测器 · 物理学 2014-11-21 Suyalatu Zhang , Zhiqiang Chen , Rui Han , Roy Wada , Xingquan Liu , Weiping Lin , Jianli Liu , Fudong Shi , Peipei Ren , Guoyu Tian , Fei Luo

We present a method to reconstruct the 3D trajectory of an airborne robotic system only from videos recorded with cameras that are unsynchronized, may feature rolling shutter distortion, and whose viewpoints are unknown. Our approach…

机器人学 · 计算机科学 2020-07-30 Jingtong Li , Jesse Murray , Dorina Ismaili , Konrad Schindler , Cenek Albl