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The Large Synoptic Survey Telescope (LSST) is conceived as an 8.4-m telescope with CCD or CMOS focal plane covering most of a field 0.6 m in diameter, the latter exceeding the size of the largest photographic plates ever used in astronomy.…

天体物理学 · 物理学 2015-06-10 Alistair R. Walker

In the maritime sector, safe vessel navigation is of great importance, particularly in congested harbors and waterways. The focus of this work is to estimate the distance between an object of interest and potential obstacles using a…

机器人学 · 计算机科学 2021-08-10 Jonas le Fevre Sejersen , Rui Pimentel de Figueiredo , Erdal Kayacan

The basic idea behind evolutionary robotics is to evolve a set of neural controllers for a particular task at hand. It involves use of various input parameters such as infrared sensors, light sensors and vision based methods. This paper…

机器人学 · 计算机科学 2009-06-29 Rizwan A. Khan , M. Aasim Qureshi , Saqib Saeed

Reliable celestial attitude determination is a critical requirement for autonomous spacecraft navigation, yet traditional "Lost-in-Space" (LIS) algorithms often suffer from high computational overhead and sensitivity to sensor-induced…

计算机视觉与模式识别 · 计算机科学 2026-04-30 May Hammad , Menatallh Hammad

Autonomous Underwater Vehicles (AUVs) and Remotely Operated Vehicles (ROVs) demand robust spatial perception capabilities, including Simultaneous Localization and Mapping (SLAM), to support both remote and autonomous tasks. Vision-based…

机器人学 · 计算机科学 2025-06-10 Pushyami Kaveti , Ambjorn Grimsrud Waldum , Hanumant Singh , Martin Ludvigsen

Onboard visual sensing has been widely used in the unmanned ground vehicle (UGV) and/or unmanned aerial vehicle (UAV), which can be modeled as dynamic systems on SE(3). The onboard sensing outputs of the dynamic system can usually be…

系统与控制 · 电气工程与系统科学 2023-03-22 Tong Zhang , Ying Tan , Xiang Chen , Zike Lei

A new robust and accurate approach for the detection and localization of flying objects with the purpose of highly dynamic aerial interception and agile multi-robot interaction is presented in this paper. The approach is proposed for use on…

We propose a new method for solving an important problem of astronomy that arises in observations with ultrahigh-angular-resolution interferometers. This method is based on the application of the theory of artificial neural networks. We…

天体物理仪器与方法 · 物理学 2019-06-26 Alexander Shatskiy , Ivan Evgeniev

Most current astronomical adaptive optics (AO) systems rely on the availability of a bright star to measure the distortion of the incoming wavefront. Replacing the guide star with an artificial laser beacon alleviates this dependency on…

天体物理学 · 物理学 2009-11-11 E. Steinbring , S. M. Faber , B. A. Macintosh , D. Gavel , E. L. Gates

In this paper, we address the problem of autonomous search and vessel detection in an unknown GNSS-denied maritime environment with fixed-wing UAVs. The main challenge in such environments with limited localization, communication range, and…

Small-sized unmanned surface vehicles (USV) are coastal water devices with a broad range of applications such as environmental control and surveillance. A crucial capability for autonomous operation is obstacle detection for timely reaction…

计算机视觉与模式识别 · 计算机科学 2022-02-10 Borja Bovcon , Jon Muhovič , Duško Vranac , Dean Mozetič , Janez Perš , Matej Kristan

Object detection from Unmanned Aerial Vehicles (UAVs) is of great importance in many aerial vision-based applications. Despite the great success of generic object detection methods, a significant performance drop is observed when applied to…

计算机视觉与模式识别 · 计算机科学 2021-10-19 Benjamin Kiefer , Martin Messmer , Andreas Zell

Visual perception is an important component for autonomous navigation of unmanned surface vessels (USV), particularly for the tasks related to autonomous inspection and tracking. These tasks involve vision-based navigation techniques to…

计算机视觉与模式识别 · 计算机科学 2023-08-09 Muhayyuddin Ahmed , Ahsan Baidar Bakht , Taimur Hassan , Waseem Akram , Ahmed Humais , Lakmal Seneviratne , Shaoming He , Defu Lin , Irfan Hussain

Underwater robot interventions require a high level of safety and reliability. A major challenge to address is a robust and accurate acquisition of localization estimates, as it is a prerequisite to enable more complex tasks, e.g. floating…

机器人学 · 计算机科学 2019-06-13 Arturo Gomez Chavez , Qingwen Xu , Christian A. Mueller , Sören Schwertfeger , Andreas Birk

Real-time and high-precision situational awareness technology is critical for autonomous navigation of unmanned surface vehicles (USVs). In particular, robust and fast obstacle semantic segmentation methods are essential. However,…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Guan-Cheng Zhou , Chen Chengb , Yan-zhou Chena

To improve ATR identification of ships at sea requires an advanced ISAR processor - one that not only provides focused images but can also determine the pose of the ship. This tells us whether the image shows a profile (vertical plane)…

信号处理 · 电气工程与系统科学 2025-04-21 John R. Bennett

To achieve mass, power, and cost reduction, there is a trend to reduce the volume of many instruments aboard spacecraft, especially for small spacecraft (cubesats or nanosats) with very limited mass, volume and power budgets. With the…

天体物理仪器与方法 · 物理学 2025-07-24 Marcio Afonso Arimura Fialho , Daniele Mortari

Optically observing and monitoring moving objects, both natural and artificial, is important to human space security. Non-sidereal tracking can improve the system's limiting magnitude for moving objects, which benefits the surveillance.…

天体物理仪器与方法 · 物理学 2024-09-05 Lei Wang , Xiaoming Zhang , Chunhai Bai , Haiwen Xie , Juan Li , Jiayi Ge , Jianfeng Wang , Xianqun Zeng , Jiantao Sun , Xiaojun Jiang

Unmanned surface vehicles (USVs) and boats are increasingly important in maritime operations, yet their deployment is limited due to costly sensors and complexity. LiDAR, radar, and depth cameras are either costly, yield sparse point clouds…

计算机视觉与模式识别 · 计算机科学 2025-01-13 Benjamin Kiefer , Yitong Quan , Andreas Zell

This project outlines the complete development of a variable star classification algorithm methodology. With the advent of Big-Data in astronomy, professional astronomers are left with the problem of how to manage large amounts of data, and…

天体物理仪器与方法 · 物理学 2020-09-01 Kyle Burton Johnston