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相关论文: Finding Very Small Near-Earth Asteroids using Synt…

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We introduce a simple and intuitive self-supervision task, Natural Synthetic Anomalies (NSA), for training an end-to-end model for anomaly detection and localization using only normal training data. NSA integrates Poisson image editing to…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Hannah M. Schlüter , Jeremy Tan , Benjamin Hou , Bernhard Kainz

With the rapid increase in the number of artificial satellites, astronomical imaging is experiencing growing interference. When these satellites reflect sunlight, they produce streak-like artifacts in photometry images. Such satellite…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Xiaohan Chen , Hongrui Gu , Cunshi Wang , Haiyang Mu , Jie Zheng , Junju Du , Jing Ren , Zhou Fan , Jing Li

We study synthetic aperture radar (SAR) imaging and motion estimation of complex scenes consisting of stationary and moving targets. We use the classic SAR setup with a single antenna emitting signals and receiving the echoes from the…

数值分析 · 数学 2015-06-11 Liliana Borcea , Thomas Callaghan , George Papanicolaou

Here we explore a technique for constraining physical properties of near-Earth asteroids (NEAs) based on variability in thermal emission as a function of viewing aspect. We present case studies of the low albedo, near-Earth asteroids…

Wide Field Survey Telescope (WFST), with a powerful sky survey capability in the northern hemisphere, will play an important role in asteroid searching and monitoring. However, WFST is not a telescope dedicated to near-Earth asteroids…

地球与行星天体物理 · 物理学 2025-02-21 Jun-Qiang Lu , Lu-Lu Fan , Min-Xuan Cai , Shao-Han Wang , Bing-Xue Fu , Xu Kong , Qing-Feng Zhu

We have created a new image analysis pipeline to reprocess images taken by the Near Earth Asteroid Tracking survey and have applied it to ten nights of observations. This work is the first large-scale reprocessing of images from an asteroid…

Technology has advanced to the point that it is possible to image the entire sky every night and process the data in real time. The sky is hardly static: many interesting phenomena occur, including variable stationary objects such as stars…

天体物理仪器与方法 · 物理学 2018-05-23 J. L. Tonry , L. Denneau , A. N. Heinze , B. Stalder , K. W. Smith , S. J. Smartt , C. W. Stubbs , H. J. Weiland , A. Rest

We present an automated and probabilistic method to make prediscovery detections of near-Earth asteroids (NEAs) in archival survey images, with the goal of reducing orbital uncertainty immediately after discovery. We refit Minor Planet…

地球与行星天体物理 · 物理学 2025-10-10 Sage Li , Alex Geringer-Sameth , Nathan Golovich

In recent years there appeared a need for astronomical observations timed with sub-millisecond accuracy. These include e.g. timing stellar occultations by small, sub-km or fast Near Earth Asteroids, but also tracking artificial satellites…

天体物理仪器与方法 · 物理学 2023-03-01 K. Kamiński , C. Weber , A. Marciniak , M. Żołnowski , M. Gędek

Radiolocation methods of probing minor celestial bodies (asteroids) by the nanosecond pulses can be used for monitoring of near-Earth space with the purpose of identification of hazardous cosmic objects able to impact the Earth. Development…

地球与行星天体物理 · 物理学 2015-05-20 V. D. Zakharchenko , I. G. Kovalenko , O. V. Pak

We propose a novel approach to synthesizing images that are effective for training object detectors. Starting from a small set of real images, our algorithm estimates the rendering parameters required to synthesize similar images given a…

计算机视觉与模式识别 · 计算机科学 2015-06-30 Artem Rozantsev , Vincent Lepetit , Pascal Fua

As part of our multi-observatory, multi-filter campaign, we present \rmi color observations of 82 Near-Earth Objects (NEOs) obtained with the RATIR instrument on the 1.5m robotic telescope at the San Pedro Martir's National Observatory in…

We propose to use a modest fraction of the re-purposed Kepler mission time and apertures to greatly increase the quantity and quality of our knowledge of near-Earth asteroids (NEAs) rotation and shape. NEAs are important for understanding…

地球与行星天体物理 · 物理学 2013-09-11 Martin Elvis , José Luis Galache , Gareth V. Williams

We present $V$-band photometry of the 20,000 brightest asteroids using data from the All-Sky Automated Survey for Supernovae (ASAS-SN) between 2012 and 2018. We were able to apply the convex inversion method to more than 5,000 asteroids…

地球与行星天体物理 · 物理学 2021-10-13 J. Hanuš , O. Pejcha , B. J. Shappee , C. S. Kochanek , K. Z. Stanek , T. W. -S. Holoien

In a previous article, we obtained the first-ever list of astrometric binary asteroid candidates. Some of these candidates have now been confirmed. In that previous work, however, the details of the statistical methods were not provided.…

Using the most recent prototypes, design, and as-built system information, we test and quantify the capability of the Large Synoptic Survey Telescope (LSST) to discover Potentially Hazardous Asteroids (PHAs) and Near-Earth Objects (NEOs).…

Increasing our knowledge of the orbits and compositions of Near-Earth Objects (NEOs) is important for a better understanding of the evolution of the Solar System and of life. The detection of serendipitous NEO appearances among the millions…

Automotive targets undergoing turns in road junctions offer large synthetic apertures over short dwell times to automotive radars that can be exploited for obtaining fine cross-range resolution. Likewise, the wide bandwidths of the…

信号处理 · 电气工程与系统科学 2022-09-28 Shobha Sundar Ram

This paper addresses the problem of multi-object tracking in Unmanned Aerial Vehicle (UAV) footage. It plays a critical role in various UAV applications, including traffic monitoring systems and real-time suspect tracking by the police.…

计算机视觉与模式识别 · 计算机科学 2024-10-29 InPyo Song , Jangwon Lee