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Meteors are important phenomenon reflecting many properties of interplanetary dust particles. The study of their origin, mass distribution, and orbit evolution all require large data volume, which can only be obtained using large meteor…

Instrumentation and Methods for Astrophysics · Physics 2024-10-11 Z. Li , H. Zou , J. Liu , J. Ma , Q. Meng , Y. Cai , X. Zhao , X. Li , Z. Tu , B. Zhang , R. Wang , S. Wang , F. Lu

Recent works on 3D single object tracking treat the task as a target-specific 3D detection task, where an off-the-shelf 3D detector is commonly employed for the tracking. However, it is non-trivial to perform accurate target-specific…

Computer Vision and Pattern Recognition · Computer Science 2023-02-14 Yan Xia , Qiangqiang Wu , Wei Li , Antoni B. Chan , Uwe Stilla

The recovery of freshly fallen meteorites from tracked and triangulated meteors is critical to determining their source asteroid families. However, locating meteorite fragments in strewn fields remains a challenge with very few meteorites…

Earth and Planetary Astrophysics · Physics 2021-06-14 Robert I. Citron , Peter Jenniskens , Christopher Watkins , Sravanthi Sinha , Amar Shah , Chedy Raissi , Hadrien Devillepoix , Jim Albers

In the article we present a hardware meteor detector. The detection principle is based on the electromagnetic wave reflection from the ionized meteor trail in the atmosphere. The detector uses the ANADIGM field programmable analogue array…

Instrumentation and Methods for Astrophysics · Physics 2015-05-12 Adam Popowicz , Andrzej Malcher , Krzysztof Bernacki , Karol Fietkiewicz

This paper presents a modular lightweight network model for road objects detection, such as car, pedestrian and cyclist, especially when they are far away from the camera and their sizes are small. Great advances have been made for the deep…

Computer Vision and Pattern Recognition · Computer Science 2018-11-19 Sen Cao , Yazhou Liu , Pongsak Lasang , Shengmei Shen

Most of the meteor radioastronomical radars are backscatter radars which cover only a small area of the atmosphere. Therefore a daytime meteor flux models are based on sparse data collected by only a few radar systems. To solve this issue,…

Instrumentation and Methods for Astrophysics · Physics 2016-06-08 Jakub Kakona , Pavel Kovar , Martin Kakona

Estimating the meteoroid flux density at centimetre to metre sizes is notoriously difficult. Yet it is an important endeavour, as these sizes represent the transition between small meteoroids that pose a risk to spacecraft, and the…

Earth and Planetary Astrophysics · Physics 2026-03-12 Konstantinos S. Servis , Hadrien A. R. Devillepoix , Eleanor K. Sansom , Thomas W. C. Stevenson

This paper describes the path strewn with pitfalls encountered during the development of a large dynamic range and very fast radiometer designed to precisely observe the meteor light curves. A small series production of a finalized version…

Instrumentation and Methods for Astrophysics · Physics 2019-11-12 Jean-Louis Rault , François Colas

This paper presents the results of a nearly two year long campaign to detect and analyze meteor persistent trains (PTs) - self-emitting phenomena which can linger up to an hour after their parent meteor. The modern understanding of PTs has…

Earth and Planetary Astrophysics · Physics 2024-07-29 L. E. Cordonnier , K. S. Obenberger , J. M. Holmes , G. B. Taylor , D. Vida

The definition of anomaly detection is the identification of an unexpected event. Real-time detection of extreme events such as wildfires, cyclones, or floods using satellite data has become crucial for disaster management. Although several…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Akash Awasthi , Son Ly , Jaer Nizam , Samira Zare , Videet Mehta , Safwan Ahmed , Keshav Shah , Ramakrishna Nemani , Saurabh Prasad , Hien Van Nguyen

Fast moving celestial objects are characterized by velocities across the celestial sphere that significantly differ from the motions of background stars. In observational images, these objects exhibit distinct shapes, contrasting with the…

Instrumentation and Methods for Astrophysics · Physics 2025-04-11 Peng Jia , Ge Li , Bafeng Cheng , Yushan Li , Rongyu Sun

The development of aerial autonomy has enabled aerial robots to fly agilely in complex environments. However, dodging fast-moving objects in flight remains a challenge, limiting the further application of unmanned aerial vehicles (UAVs).…

Robotics · Computer Science 2021-03-12 Botao He , Haojia Li , Siyuan Wu , Dong Wang , Zhiwei Zhang , Qianli Dong , Chao Xu , Fei Gao

This paper proposes a novel approach to create an automated visual surveillance system which is very efficient in detecting and tracking moving objects in a video captured by moving camera without any apriori information about the captured…

Computer Vision and Pattern Recognition · Computer Science 2017-06-09 Kumar S. Ray , Soma Chakraborty

We present a cloud-based tool that uses drones and machine learning to help recover instrumentally observed meteorite falls. We showcase a collection of improvements made upon previous iterations of our system, as well as detail the…

Object detection in videos has drawn increasing attention since it is more practical in real scenarios. Most of the deep learning methods use CNNs to process each decoded frame in a video stream individually. However, the free of charge yet…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Shiyao Wang , Hongchao Lu , Zhidong Deng

3D object detection is a core component of automated driving systems. State-of-the-art methods fuse RGB imagery and LiDAR point cloud data frame-by-frame for 3D bounding box regression. However, frame-by-frame 3D object detection suffers…

Computer Vision and Pattern Recognition · Computer Science 2021-05-24 Emeç Erçelik , Ekim Yurtsever , Alois Knoll

Safety is paramount for mobile robotic platforms such as self-driving cars and unmanned aerial vehicles. This work is devoted to a task that is indispensable for safety yet was largely overlooked in the past -- detecting obstacles that are…

Computer Vision and Pattern Recognition · Computer Science 2017-08-15 Chen Zhou , Jiaolong Yang , Chunshui Zhao , Gang Hua

Video moment retrieval (VMR) identifies a specific moment in an untrimmed video for a given natural language query. This task is prone to suffer the weak alignment problem innate in video datasets. Due to the ambiguity, a query does not…

Computer Vision and Pattern Recognition · Computer Science 2024-10-02 Minjoon Jung , Youwon Jang , Seongho Choi , Joochan Kim , Jin-Hwa Kim , Byoung-Tak Zhang

Embedded flight devices with visual capabilities have become essential for a wide range of applications. In aerial image detection, while many existing methods have partially addressed the issue of small target detection, challenges remain…

Computer Vision and Pattern Recognition · Computer Science 2025-04-30 Yao Xiao , Tingfa Xu , Yu Xin , Jianan Li

The current data acquisition rate of astronomical transient surveys and the promise for significantly higher rates during in the next decade necessitate the development of novel approaches to analyze astronomical data sets and promptly…

Instrumentation and Methods for Astrophysics · Physics 2022-01-28 Robert Strausbaugh , Antonino Cucchiara , Michael Dow , Sara Webb , Jielai Zhang , Simon Goode , Jeff Cooke