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The Fluorescence detector Array of Single-pixel Telescopes aims to deploy an array of simplified, autonomous fluorescence telescopes over an area of $\sim60,000$ km$^{2}$ to observe ultra-high energy cosmic rays. The unprecedented size of…

Instrumentation and Methods for Astrophysics · Physics 2025-10-28 Fraser Bradfield

The Large Area Telescope (LAT) on board the Gamma-ray Large-Area Space Telescope (GLAST) is a pair-conversion gamma-ray detector designed to explore the gamma-ray universe in the 20 MeV-300 GeV energy band. The Tracker subsystem of the LAT…

Astrophysics · Physics 2009-11-11 Hiroyasu Tajima , for GLAST Tracker Team

We present a novel approach to implement compressive sensing in laser scanning microscopes (LSM), specifically in image scanning microscopy (ISM), using a single-photon avalanche diode (SPAD) array detector. Our method addresses two…

Image and Video Processing · Electrical Eng. & Systems 2023-07-20 Ajay Gunalan , Marco Castello , Simonluca Piazza , Shunlei Li , Alberto Diaspro , Leonardo S. Mattos , Paolo Bianchini

The prompt online detection of abrupt changes in image data is essential for timely decision-making in broad applications, from video surveillance to manufacturing quality control. Existing methods, however, face three key challenges.…

Methodology · Statistics 2025-04-15 Xiaojun Zheng , Simon Mak

(Abridged) Typically large telescope construction and operation costs scale up faster than their collecting area. This slows scientific progress, making it expensive and complicated to increase telescope size. A metric that represents the…

Instrumentation and Methods for Astrophysics · Physics 2020-11-25 Eran O. Ofek , Sagi Ben-Ami

Previous approaches for scene text detection have already achieved promising performances across various benchmarks. However, they usually fall short when dealing with challenging scenarios, even when equipped with deep neural network…

Computer Vision and Pattern Recognition · Computer Science 2017-07-11 Xinyu Zhou , Cong Yao , He Wen , Yuzhi Wang , Shuchang Zhou , Weiran He , Jiajun Liang

We report on the results of a search for radio transients between 115 and 190\,MHz with the LOw-Frequency ARray (LOFAR). Four fields have been monitored with cadences between 15 minutes and several months. A total of 151 images were…

We present the novel Efficient Line Segment Detector and Descriptor (ELSD) to simultaneously detect line segments and extract their descriptors in an image. Unlike the traditional pipelines that conduct detection and description separately,…

Computer Vision and Pattern Recognition · Computer Science 2021-04-30 Haotian Zhang , Yicheng Luo , Fangbo Qin , Yijia He , Xiao Liu

The Galactic O-Star Spectroscopic Survey (GOSSS) is an ambitious project that is observing all known Galactic O stars with B < 13 in the blue-violet part of the spectrum with R-2500. It is based on version 2 of the most complete catalog to…

Instrumentation and Methods for Astrophysics · Physics 2011-01-19 Alfredo Sota , Jesús Maíz Apellániz

We introduce a pipeline that performs rapid image subtraction and source selection to detect transients, with a focus on identifying gravitational wave optical counterparts using the Dark Energy Camera (DECam). In this work, we present the…

Instrumentation and Methods for Astrophysics · Physics 2024-08-27 Shenming Fu , Thomas Matheson , Aaron Meisner , Yuanyuan Zhang , Sebastián Vicencio , Destry Saul

We present a technique for verifying or refuting exoplanet candidates from the Transiting Exoplanet Survey Satellite (TESS) mission by searching for nearby eclipsing binary stars using higher-resolution archival images from ground-based…

Earth and Planetary Astrophysics · Physics 2023-12-14 Gabrielle Ross , Andrew Vanderburg , Zoë L. de Beurs , Karen A. Collins , Rob J. Siverd , Kevin Burdge

One of the science drivers of the new Low Frequency Array (LOFAR) is large-area surveys of the low-frequency radio sky. Realizing this goal requires automated processing of the interferometric data, such that fully calibrated images are…

Small object detection is a broadly investigated research task and is commonly conceptualized as a "pipeline-style" engineering process. In the upstream, images serve as raw materials for processing in the detection pipeline, where…

Computer Vision and Pattern Recognition · Computer Science 2025-04-30 Siwei Wang , Zhiwei Chen , Liujuan Cao , Rongrong Ji

Large-format (sub)millimeter wavelength imaging arrays are best operated in scanning observing modes rather than traditional position-switched (chopped) modes. The choice of observing mode is critical for isolating source signals from…

Astrophysics · Physics 2014-11-18 A. Kovacs

The VST Telescope Control Software logs continuously detailed information about the telescope and instrument operations. Commands, telemetries, errors, weather conditions and anything may be relevant for the instrument maintenance and the…

Instrumentation and Methods for Astrophysics · Physics 2021-01-05 Salvatore Savarese , Pietro Schipani , Giulio Capasso , Mirko Colapietro , Sergio D'Orsi , Laurent Marty , Francesco Perrotta

The 24 micron array on board the Spitzer Space Telescope is one of three arrays in the Multi-band Imaging Photometer for Spitzer (MIPS) instrument. It provides 5.3 x 5.3 arcmin images at a scale of ~2.5 arcsec per pixel corresponding to…

The Large-Sized Telescopes (LSTs) of the Cherenkov Telescope Array Observatory (CTAO) will play a crucial role in the study of transient gamma-ray sources, such as gamma-ray bursts and flaring active galactic nuclei. The low energy…

Instrumentation and Methods for Astrophysics · Physics 2023-09-22 Sami Caroff , Pierre Aubert , Enrique Garcia , Gilles Maurin , Vincent Pollet , Thomas Vuillaume

New time-domain surveys, such as the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), will observe millions of transient alerts each night, making standard approaches of visually identifying new and interesting transients…

Instrumentation and Methods for Astrophysics · Physics 2022-10-07 Daniel Muthukrishna , Kaisey S. Mandel , Michelle Lochner , Sara Webb , Gautham Narayan

Wide-field and high-cadence sky surveys are the first step in the chain of discovery and characterisation of astrophysical transients such as supernovae, kilonovae, and tidal disruption events, each linked to the varied demise of stellar…