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Related papers: Full-Velocity Radar Returns by Radar-Camera Fusion

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A Doppler radar is a device that employs the Doppler effect to estimate the radial velocity of a moving target at a distance. Traditional radars are based on a classical description of the electromagnetic radiation, but in principle their…

Quantum Physics · Physics 2024-11-22 Rongyu Wei , Francesco Albarelli , Jun Li , Vittorio Giovannetti

In this paper, with respect to multichannel synthetic aperture radars (SAR), we first formulate the problems of Doppler ambiguities on the radial velocity (RV) estimation of a ground moving target in range-compressed domain, range-Doppler…

Information Theory · Computer Science 2017-06-13 Jia Xu , Zu-Zhen Huang , Zhi-Rui Wang , Li Xiao , Xiang-Gen Xia , Teng Long

Accurate and robust 3D object detection is a critical component in autonomous vehicles and robotics. While recent radar-camera fusion methods have made significant progress by fusing information in the bird's-eye view (BEV) representation,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Jisong Kim , Minjae Seong , Jun Won Choi

Robots and autonomous vehicles should be aware of what happens in their surroundings. The segmentation and tracking of moving objects are essential for reliable path planning, including collision avoidance. We investigate this estimation…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Matthias Zeller , Daniel Casado Herraez , Jens Behley , Michael Heidingsfeld , Cyrill Stachniss

Multi-sensor modal fusion has demonstrated strong advantages in 3D object detection tasks. However, existing methods that fuse multi-modal features require transforming features into the bird's eye view space and may lose certain…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Chunyong Hu , Hang Zheng , Kun Li , Jianyun Xu , Weibo Mao , Maochun Luo , Lingxuan Wang , Mingxia Chen , Qihao Peng , Kaixuan Liu , Yiru Zhao , Peihan Hao , Minzhe Liu , Kaicheng Yu

There is a current increase in the development of "4D" Doppler-capable radar and lidar range sensors that produce 3D point clouds where all points also have information about the radial velocity relative to the sensor. 4D radars in…

Robotics · Computer Science 2023-10-30 Vladimír Kubelka , Emil Fritz , Martin Magnusson

Automotive radar systems have evolved to provide not only range, azimuth and Doppler velocity, but also elevation data. This additional dimension allows for the representation of 4D radar as a 3D point cloud. As a result, existing deep…

Computer Vision and Pattern Recognition · Computer Science 2024-08-12 Alexander Musiat , Laurenz Reichardt , Michael Schulze , Oliver Wasenmüller

With the rapid advancements of sensor technology and deep learning, autonomous driving systems are providing safe and efficient access to intelligent vehicles as well as intelligent transportation. Among these equipped sensors, the radar…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Shanliang Yao , Runwei Guan , Zitian Peng , Chenhang Xu , Yilu Shi , Weiping Ding , Eng Gee Lim , Yong Yue , Hyungjoon Seo , Ka Lok Man , Jieming Ma , Xiaohui Zhu , Yutao Yue

Visual Odometry (VO) estimation is an important source of information for vehicle state estimation and autonomous driving. Recently, deep learning based approaches have begun to appear in the literature. However, in the context of driving,…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Nimet Kaygusuz , Oscar Mendez , Richard Bowden

For event cameras, current sparse geometric solvers for egomotion estimation assume that the rotational displacements are known, such as those provided by an IMU. Thus, they can only recover the translational motion parameters. Recovering…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Ji Zhao , Banglei Guan , Zibin Liu , Laurent Kneip

Correct radar data fusion depends on knowledge of the spatial transform between sensor pairs. Current methods for determining this transform operate by aligning identifiable features in different radar scans, or by relying on measurements…

Robotics · Computer Science 2023-08-30 Qilong Cheng , Emmett Wise , Jonathan Kelly

Detecting objects efficiently from radar sensors has recently become a popular trend due to their robustness against adverse lighting and weather conditions compared with cameras. This paper presents an efficient object detection model for…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Zhiwei Lin , Weicheng Zheng , Yongtao Wang

We propose a useful method for mapping large-scale velocity fields in the solar photosphere. It is based on the local correlation tracking algorithm when tracing supergranules in full-disc dopplergrams. The method was developed using…

Astrophysics · Physics 2007-05-23 M. Svanda , M. Klvana , M. Sobotka

Existing video stabilization methods often generate visible distortion or require aggressive cropping of frame boundaries, resulting in smaller field of views. In this work, we present a frame synthesis algorithm to achieve full-frame video…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Yu-Lun Liu , Wei-Sheng Lai , Ming-Hsuan Yang , Yung-Yu Chuang , Jia-Bin Huang

Traditional visual place recognition (VPR), usually using standard cameras, is easy to fail due to glare or high-speed motion. By contrast, event cameras have the advantages of low latency, high temporal resolution, and high dynamic range,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-24 Kuanxu Hou , Delei Kong , Junjie Jiang , Hao Zhuang , Xinjie Huang , Zheng Fang

In recent years, consumer-level depth cameras have been adopted for various applications. However, they often produce depth maps at only a moderately high frame rate (approximately 30 frames per second), preventing them from being used for…

Graphics · Computer Science 2018-11-06 Ming-Ze Yuan , Lin Gao , Hongbo Fu , Shihong Xia

Automotive mmWave radar has been widely used in the automotive industry due to its small size, low cost, and complementary advantages to optical sensors (e.g., cameras, LiDAR, etc.) in adverse weathers, e.g., fog, raining, and snowing. On…

Robotics · Computer Science 2022-02-23 Pengen Gao , Shengkai Zhang , Wei Wang , Chris Xiaoxuan Lu

Photodetection is usually treated in the frame in which the detector is at rest relative to the optical apparatus. We show that uniform motion of an electric Glauber detector changes the single-click POVM realized on two counterpropagating…

Quantum Physics · Physics 2026-05-21 Mohamed Hatifi

Radar sensors have become an important part of the perception sensor suite due to their long range and their ability to work in adverse weather conditions. However, several shortcomings such as large amounts of noise and extreme sparsity of…

Robotics · Computer Science 2020-08-25 Nikhil Bharadwaj Gosala , Xiaoli Meng

In this paper, we focus on traffic camera calibration and a visual speed measurement from a single monocular camera, which is an important task of visual traffic surveillance. Existing methods addressing this problem are difficult to…

Computer Vision and Pattern Recognition · Computer Science 2019-03-13 Jakub Sochor , Roman Juránek , Jakub Špaňhel , Lukáš Maršík , Adam Široký , Adam Herout , Pavel Zemčík