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The next generation of wide-field deep astronomical surveys will deliver unprecedented amounts of images through the 2020s and beyond. As both the sensitivity and depth of observations increase, more blended sources will be detected. This…

天体物理仪器与方法 · 物理学 2024-12-02 G. M. Merz , Y. Liu , C. J. Burke , P. D. Aleo , X. Liu , M. C. Kind , V. Kindratenko , Y. Liu

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…

天体物理仪器与方法 · 物理学 2022-10-07 Daniel Muthukrishna , Kaisey S. Mandel , Michelle Lochner , Sara Webb , Gautham Narayan

This paper presents an novel object type classification method for automotive applications which uses deep learning with radar reflections. The method provides object class information such as pedestrian, cyclist, car, or non-obstacle. The…

计算机视觉与模式识别 · 计算机科学 2020-10-20 Michael Ulrich , Claudius Gläser , Fabian Timm

Measurements from particle timing detectors are often affected by the time walk effect caused by statistical fluctuations in the charge deposited by passing particles. The constant fraction discriminator (CFD) algorithm is frequently used…

仪器与探测器 · 物理学 2024-03-19 Mateusz Kocot , Krzysztof Misan , Valentina Avati , Edoardo Bossini , Leszek Grzanka , Nicola Minafra

Wearable technology for the automatic detection of gait events has recently gained growing interest, enabling advanced analyses that were previously limited to specialist centres and equipment (e.g., instrumented walkway). In this study, we…

信号处理 · 电气工程与系统科学 2020-09-01 Matteo Gadaleta , Giulia Cisotto , Michele Rossi , Rana Zia Ur Rehman , Lynn Rochester , Silvia Del Din

The growing negative impact of the visibility of satellites in the night sky is influencing the practice of astronomy and astrophotograph, both at the amateur and professional levels. The presence of these satellites has the effect of…

天体物理仪器与方法 · 物理学 2025-10-21 Olivier Parisot , Mahmoud Jaziri

The Zwicky Transient Facility (ZTF) is performing a three-day cadence survey of the visible Northern sky (~3$\pi$). The transient candidates found in this survey are announced via public alerts. As a supplementary product ZTF is also…

Accurate classification of transients obtained from spectroscopic data are important to understand their nature and discover new classes of astronomical objects. For supernovae (SNe), SNID, NGSF (a Python version of SuperFit), and DASH are…

Astronomers require efficient automated detection and classification pipelines when conducting large-scale surveys of the (optical) sky for variable and transient sources. Such pipelines are fundamentally important, as they permit rapid…

In this project we use data obtained by Zwicky Transient Facility to develop and test a neural-network-based, multiband classification algorithm to classify periodic variable stars (i.e. pulsating variable stars and eclipsing binaries). The…

天体物理仪器与方法 · 物理学 2026-02-25 Tamás Szklenár , Attila Bódi , Róbert Szabó

With the installation of a new phased array system called Apertif, the instantaneous field of view of the Westerbork Synthesis Radio Telescope (WSRT) has increased to 8.7$\,$deg$^2$. This system has turned the WSRT in to an highly effective…

天体物理仪器与方法 · 物理学 2019-11-13 Yogesh Maan , Joeri van Leeuwen

Change detection, i.e. identification per pixel of changes for some classes of interest from a set of bi-temporal co-registered images, is a fundamental task in the field of remote sensing. It remains challenging due to unrelated forms of…

计算机视觉与模式识别 · 计算机科学 2021-09-20 Foivos I. Diakogiannis , François Waldner , Peter Caccetta

Dynamic obstacle avoidance is one crucial component for compliant navigation in crowded environments. In this paper we present a system for accurate and reliable detection and tracking of dynamic objects using noisy point cloud data…

机器人学 · 计算机科学 2020-07-22 Thomas Eppenberger , Gianluca Cesari , Marcin Dymczyk , Roland Siegwart , Renaud Dubé

Machine learning has become essential for automated classification of astronomical transients, but current approaches face significant limitations: classifiers trained on simulations struggle with real data, models developed for one survey…

天体物理仪器与方法 · 物理学 2025-07-10 Rithwik Gupta , Daniel Muthukrishna , Nabeel Rehemtulla , Ved Shah

Deep Learning-based object detectors can enhance the capabilities of smart camera systems in a wide spectrum of machine vision applications including video surveillance, autonomous driving, robots and drones, smart factory, and health…

计算机视觉与模式识别 · 计算机科学 2020-10-30 Christos Kyrkou

We have realised a simple prototype system to perform searches for short timescale optical transients, utilising the novel drift scan imaging technique described by Tingay (2020). We used two coordinated and aligned cameras, with an overlap…

高能天体物理现象 · 物理学 2021-01-27 S. J. Tingay , W. Joubert

We propose an Ultra-Fast, Device-Free Visible Light Sensing and Positioning system that captures spatiotemporal variations in single-LED VLC channel responses, using ceiling-mounted photodetectors, to accurately and non-intrusively infer…

信号处理 · 电气工程与系统科学 2026-02-05 Helena Serpi , Christina , Politi

Large-scale astronomical surveys have the potential to capture data on large numbers of strongly gravitationally lensed supernovae (LSNe). To facilitate timely analysis and spectroscopic follow-up before the supernova fades, an LSN needs to…

Wide field small aperture telescopes are widely used for optical transient observations. Detection and classification of astronomical targets in observed images are the most important and basic step. In this paper, we propose an…

天体物理仪器与方法 · 物理学 2020-05-06 Peng Jia , Qiang Liu , Yongyang Sun