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Vehicle detection and recognition in drone images is a complex problem that has been used for different safety purposes. The main challenge of these images is captured at oblique angles and poses several challenges like non-uniform…

Computer Vision and Pattern Recognition · Computer Science 2023-05-01 Hamam Mokayed , Amirhossein Nayebiastaneh , Kanjar De , Stergios Sozos , Olle Hagner , Bjorn Backe

High-time-resolution X-ray observations of compact objects provide direct access to strong field gravity, black hole masses and spins, and the equation of state of ultra-dense matter. LOFT, the large observatory for X-ray timing, is…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 R. P. Mignani , S. Zane , D. Walton , T. Kennedy , B. Winter , P. Smith , R. Cole , D. Kataria , A. Smith

We report on observations of circumstellar disks around young stars that have been obtained with the MIDI instrument, which is mounted on the VLT Interferometer and operates in the 10 micrometer atmospheric window. The maximum spatial…

The use of interferometric nulling for the direct characterization of extrasolar planets is an exciting prospect, but one that faces many practical challenges when deployed on telescopes. The largest limitation is the extreme sensitivity of…

Instrumentation and Methods for Astrophysics · Physics 2022-06-13 Nick Cvetojevic , Frantz Martinache , Peter Chingaipe , Romain Laugier , Katarzyna Ławniczuk , Ronald G. Broeke , Roxanne Ligi , Mamadou N'Diaye , David Mary

We present recent results obtained with the VLT/MUSE Integral Field Spectrograph fed by the 4LGSF and its laser tomography adaptive optics module GALACSI. While this so-called narrow-field mode of MUSE was not designed to perform directly…

This paper addresses the critical challenge of vehicle detection in the harsh winter conditions in the Nordic regions, characterized by heavy snowfall, reduced visibility, and low lighting. Due to their susceptibility to environmental…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Hamam Mokayed , Rajkumar Saini , Oluwatosin Adewumi , Lama Alkhaled , Bjorn Backe , Palaiahnakote Shivakumara , Olle Hagner , Yan Chai Hum

The SoLid experiment aims to resolve the reactor anti neutrino anomaly by searching for short baseline neutrino oscillations. The experiment makes use of a novel detector technology based on the combination of 5cm x 5cm x 5cm PVT cubes and…

Instrumentation and Detectors · Physics 2019-08-14 Celine Moortgat

Context: The conventional approach to direct imaging has been the use of a single aperture coronagraph with wavefront correction via extreme adaptive optics. Such systems are limited to observing beyond an inner working (IWA) of a few…

Instrumentation and Methods for Astrophysics · Physics 2023-08-09 Peter Marley Chingaipe , Frantz Martinache , Nick Cvetojevic , Roxanne Ligi , David Mary , Mamadou N'Diaye , Denis Defrere , Michael J. Ireland

From April 2013 to the beginning of August 2013, the aSPECT spectrometer was installed on a cold neutron beam facility at the Institut Laue-Langevin (ILL) in order to realize a high-precision measurement of the electron-antineutrino angular…

Instrumentation and Detectors · Physics 2019-07-12 Romain Virot

We present the results of mid-infrared nulling interferometric observations of the main-sequence star alpha Lyr (Vega) using the 6.5 m MMT with its adaptive secondary mirror. From the observations at 10.6 microns, we find that there is no…

An achromatic cold-neutron microscope with magnification 4 is demonstrated. The image-forming optics is composed of nested coaxial mirrors of full figures of revolution, so-called Wolter optics. The spatial resolution, field of view, and…

Instrumentation and Detectors · Physics 2013-05-09 D. Liu , D. Hussey , M. V. Gubarev , B. D. Ramsey , D. Jacobson , M. Arif , D. E. Moncton , B. Khaykovich

ATLAST is a particular realization of LUVOIR, the Large Ultraviolet Optical Infrared telescope, a ~10 m diameter space telescope being defined for consideration in the 2020 Decadal Review of astronomy and astrophysics. ATLAST/LUVOIR is…

Instrumentation and Methods for Astrophysics · Physics 2016-05-17 Michael Werner , Mark Swain , Gautam Vasisht , Xu Wang , Steven Macenka , Avi Mandell , Shawn Domagal-Goldman , Joel Green , Chris Stark

The Ultraviolet Transient Astronomical Satellite is a scientific space mission carrying an astronomical telescope. The mission is led by the Weizmann Institute of Science in Israel and the Israel Space Agency, while the camera in the focal…

Neutral sodium was the first atom detected in an exoplanetary atmosphere via transmission spectroscopy and remains the most frequently detected species due to its strong doublet in the optical. However, the center-to-limb variation (CLV) of…

Earth and Planetary Astrophysics · Physics 2024-12-04 G. Canocchi , G. Morello , K. Lind , I. Carleo , M. Stangret , E. Pallé

ESA's mission Euclid, while undertaking its final integration stage, is fully qualified. Euclid will perform an extragalactic survey ($0<z<2$) by observing in the visible and near-infrared wavelength range. To detect infrared radiation, it…

ESPRESSO is the new high-resolution spectrograph of ESO's Very-Large Telescope (VLT). It was designed for ultra-high radial-velocity precision and extreme spectral fidelity with the aim of performing exoplanet research and fundamental…

We developed an optical device for ultra-cold neutrons and investigated the influence of a tilt of its guiding components. A measurement of the time-of-flight of the neutrons through the device by means of a dedicated chopper system was…

Instrumentation and Detectors · Physics 2014-11-20 C. Plonka-Spehr , A. Kraft , P. Iaydjiev , J. Klepp , V. Nesvizhevsky , P. Geltenbort , Th. Lauer

The ELTI concept capitalizes on recent breakthroughs in large-format SPAD (Single-Photon Avalanche Diode) imaging sensors, combining them with the unprecedented collecting area and segmented architecture of the ELT to deliver a…

Instrumentation and Methods for Astrophysics · Physics 2026-03-09 Francisco Prada , Enrique Perez , Sergio Fernandez-Acosta , Km Nitu Rai , Joel Sanchez-Bermudez

The Einstein Telescope (ET) will be the next generation gravitational wave observatory in Europe with a sensitivity reaching beyond the CMB into the dark era of the Universe. Each corner of the triangular baseline design is the center of…

Instrumentation and Methods for Astrophysics · Physics 2025-08-25 Thomas Höhn , Adrian Schwenck , Thomas Thümmler , Joachim Wolf , Ralph Engel , Andreas Haungs , Einstein Telescope Pathfinder , collaboration

The Mexico-UK Sub-millimetre Camera for AsTronomy (MUSCAT) is a large-format, millimetre-wave camera consisting of 1,500 background-limited lumped-element kinetic inductance detectors (LEKIDs) scheduled for deployment on the Large…