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Increasing data volumes delivered by a new generation of radio interferometers require computationally efficient and robust calibration algorithms. In this paper, we propose distributed calibration as a way of improving both computational…

天体物理仪器与方法 · 物理学 2015-06-23 Sarod Yatawatta

Combining multiple object detection datasets offers a path to improved generalisation but is hindered by inconsistencies in class semantics and bounding box annotations. Some methods to address this assume shared label taxonomies and…

计算机视觉与模式识别 · 计算机科学 2025-06-09 Mikhail Kennerley , Angelica Aviles-Rivero , Carola-Bibiane Schönlieb , Robby T. Tan

Accurate flux density calibration is essential for precise analysis and interpretation of observations across different observation modes and instruments. In this research, we firstly introduce the flux calibration model incorporated in…

天体物理仪器与方法 · 物理学 2024-09-04 Ziming Liu , Jie Wang , Yingjie Jing , Zhi-Yu Zhang , Chen Xu , Tiantian Liang , Qingze Chen , Ningyu Tang , Qingliang Yang

Satellite radar altimeters are a key source of observation of ocean surface dynamics. However, current sensor technology and mapping techniques do not yet allow to systematically resolve scales smaller than 100km. With their new sensors,…

机器学习 · 计算机科学 2023-09-28 Quentin Febvre , Ronan Fablet , Julien Le Sommer , Clément Ubelmann

New scientific instruments are starting to generate an unprecedented amount of data. LOFAR, one of the Square Kilometre Array pathfinders, is already producing data on a petabyte scale. The calibration of these data presents a huge…

天体物理仪器与方法 · 物理学 2017-04-19 J. Sabater , S. Sánchez Expósito , P. N. Best , J. Garrido , L. Verdes-Montenegro , D. Lezzi

The fusion of LiDARs and cameras has been increasingly adopted in autonomous driving for perception tasks. The performance of such fusion-based algorithms largely depends on the accuracy of sensor calibration, which is challenging due to…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Yuxuan Xiao , Yao Li , Chengzhen Meng , Xingchen Li , Jianmin Ji , Yanyong Zhang

Through the last decade, we have witnessed a surge of Internet of Things (IoT) devices, and with that a greater need to choreograph their actions across both time and space. Although these two problems, namely time synchronization and…

机器学习 · 计算机科学 2017-11-13 Amr Alanwar , Henrique Ferraz , Kevin Hsieh , Rohit Thazhath , Paul Martin , Joao Hespanha , Mani Srivastava

Sensor calibration usually is a time consuming yet important task. While classical approaches are sensor-specific and often need calibration targets as well as a widely overlapping field of view (FOV), within this work, a cooperative…

信号处理 · 电气工程与系统科学 2019-11-06 Johannes Müller , Martin Herrmann , Jan Strohbeck , Vasileios Belagiannis , Michael Buchholz

For an autonomous vehicle, the ability to sense its surroundings and to build an overall representation of the environment by fusing different sensor data streams is fundamental. To this end, the poses of all sensors need to be accurately…

机器人学 · 计算机科学 2022-11-07 Brahayam Ponton , Magda Ferri , Lars Koenig , Marcus Bartels

Data fusion algorithms that employ LiDAR measurements, such as Visual-LiDAR, LiDAR-Inertial, or Multiple LiDAR Odometry and simultaneous localization and mapping (SLAM) rely on precise timestamping schemes that grant synchronicity to data…

机器人学 · 计算机科学 2022-09-14 Marsel Faizullin , Anastasiia Kornilova , Gonzalo Ferrer

The use of infrastructure sensor technology for traffic detection has already been proven several times. However, extrinsic sensor calibration is still a challenge for the operator. While previous approaches are unable to calibrate the…

计算机视觉与模式识别 · 计算机科学 2020-08-04 Laurent Kloeker , Christian Kotulla , Lutz Eckstein

LiDAR point cloud maps are extensively utilized on roads for robot navigation due to their high consistency. However, dense point clouds face challenges of high memory consumption and reduced maintainability for long-term operations. In…

机器人学 · 计算机科学 2025-03-27 Zehuan Yu , Zhijian Qiao , Wenyi Liu , Huan Yin , Shaojie Shen

Robust integration of physical knowledge and data is key to improve computational simulations, such as Earth system models. Data assimilation is crucial for achieving this goal because it provides a systematic framework to calibrate model…

计算机视觉与模式识别 · 计算机科学 2024-06-14 Yongquan Qu , Juan Nathaniel , Shuolin Li , Pierre Gentine

Post-hoc calibration methods are widely used to improve the reliability of probabilistic predictions from machine learning models. Despite their prevalence, a comprehensive theoretical understanding of these methods remains elusive,…

机器学习 · 计算机科学 2025-09-30 Kristina P. Sinaga , Arjun S. Nair

The real-time data processing of the next generation of experiments conducted at FAIR requires a reliable reconstruction of event topologies and, therefore, will depend heavily on in-situ calibration procedures. A neural network-based…

仪器与探测器 · 物理学 2025-05-26 Valentin Kladov , Johan Messchendorp , James Ritman

Simultaneous Localization and Mapping (SLAM) plays an important role in robot autonomy. Reliability and efficiency are the two most valued features for applying SLAM in robot applications. In this paper, we consider achieving a reliable…

机器人学 · 计算机科学 2023-10-09 Shiquan Yi , Yang Lyu , Lin Hua , Quan Pan , Chunhui Zhao

In engineering design and scientific computing, computational cost and predictive accuracy are intrinsically coupled. High-fidelity simulations provide accurate predictions but at substantial computational costs, while lower-fidelity…

机器学习 · 计算机科学 2026-05-11 Ahmed Mohamed Eisa Nasr , Ali Elham , Haris Moazam Sheikh

While 3D Gaussian Splatting (3DGS) enabled photorealistic mapping, its integration into SLAM has largely followed traditional camera-centric pipelines. As a result, they inherit well-known weaknesses such as high computational load, failure…

机器人学 · 计算机科学 2026-03-10 Jaeseok Park , Chanoh Park , Minsu Kim , Minkyoung Kim , Soohwan Kim

Combining multiple LiDARs enables a robot to maximize its perceptual awareness of environments and obtain sufficient measurements, which is promising for simultaneous localization and mapping (SLAM). This paper proposes a system to achieve…

机器人学 · 计算机科学 2021-05-06 Jianhao Jiao , Haoyang Ye , Yilong Zhu , Ming Liu

The integration of multiple cameras and 3D Li- DARs has become basic configuration of augmented reality devices, robotics, and autonomous vehicles. The calibration of multi-modal sensors is crucial for a system to properly function, but it…

机器人学 · 计算机科学 2021-07-13 Chuan Fang , Shuai Ding , Zilong Dong , Honghua Li , Siyu Zhu , Ping Tan