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Using 3D point clouds in odometry estimation in robotics often requires finding a set of correspondences between points in subsequent scans. While there are established methods for point clouds of sufficient quality, state-of-the-art still…

Robotics · Computer Science 2025-06-24 Jan Michalczyk , Stephan Weiss , Jan Steinbrener

Micro-aerial vehicles (MAVs) are becoming ubiquitous across multiple industries and application domains. Lightweight MAVs with only an onboard flight controller and a minimal sensor suite (e.g., IMU, vision, and vertical ranging sensors)…

Robotics · Computer Science 2021-05-03 Li Qingqing , Yu Xianjia , Jorge Peña Queralta , Tomi Westerlund

LiDAR (Light Detection and Ranging) is an advanced active remote sensing technique working on the principle of time of travel (ToT) for capturing highly accurate 3D information of the surroundings. LiDAR has gained wide attention in…

Computer Vision and Pattern Recognition · Computer Science 2023-02-16 Shreelakshmi C R , Surya S. Durbha , Gaganpreet Singh

3D LiDAR point cloud data is crucial for scene perception in computer vision, robotics, and autonomous driving. Geometric and semantic scene understanding, involving 3D point clouds, is essential for advancing autonomous driving…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Li Li

Millimeter wave communication systems can leverage information from sensors to reduce the overhead associated with link configuration. LIDAR (light detection and ranging) is one sensor widely used in autonomous driving for high resolution…

Signal Processing · Electrical Eng. & Systems 2020-01-14 Aldebaro Klautau , Nuria González-Prelcic , Robert W. Heath

In order to deal with the sparse and unstructured raw point clouds, LiDAR based 3D object detection research mostly focuses on designing dedicated local point aggregators for fine-grained geometrical modeling. In this paper, we revisit the…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Jinyu Li , Chenxu Luo , Xiaodong Yang

LiDARs are usually more accurate than cameras in distance measuring. Hence, there is strong interest to apply LiDARs in autonomous driving. Different existing approaches process the rich 3D point clouds for object detection, tracking and…

Robotics · Computer Science 2020-10-15 You Li , Clément Le Bihan , Txomin Pourtau , Thomas Ristorcelli

Millimeter-wave radar provides perception robust to fog, smoke, dust, and low light, making it attractive for size, weight, and power constrained robotic platforms. Current radar imaging methods, however, rely on synthetic aperture or…

Robotics · Computer Science 2025-09-23 Bin Zhao , Nakul Garg

Place recognition is essential for achieving closed-loop or global positioning in autonomous vehicles and mobile robots. Despite recent advancements in place recognition using 2D cameras or 3D LiDAR, it remains to be seen how to use 4D…

Robotics · Computer Science 2025-04-08 Shouyi Lu , Guirong Zhuo , Haitao Wang , Quan Zhou , Huanyu Zhou , Renbo Huang , Minqing Huang , Lianqing Zheng , Qiang Shu

Semantic segmentation of 3D LiDAR point clouds is important in urban remote sensing for understanding real-world street environments. This task, by projecting LiDAR point clouds and 3D semantic labels as sparse maps, can be reformulated as…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Xiaoyu Dong , Tiankui Xian , Wanshui Gan , Naoto Yokoya

In Autonomous Driving (AD), detection and tracking of obstacles on the roads is a critical task. Deep-learning based methods using annotated LiDAR data have been the most widely adopted approach for this. Unfortunately, annotating 3D point…

Computer Vision and Pattern Recognition · Computer Science 2021-07-02 Jin Fang , Dingfu Zhou , Feilong Yan , Tongtong Zhao , Feihu Zhang , Yu Ma , Liang Wang , Ruigang Yang

Occluded and long-range objects are ubiquitous and challenging for 3D object detection. Point cloud sequence data provide unique opportunities to improve such cases, as an occluded or distant object can be observed from different viewpoints…

Computer Vision and Pattern Recognition · Computer Science 2023-06-07 Yingwei Li , Charles R. Qi , Yin Zhou , Chenxi Liu , Dragomir Anguelov

Lidar point cloud distortion from moving object is an important problem in autonomous driving, and recently becomes even more demanding with the emerging of newer lidars, which feature back-and-forth scanning patterns. Accurately estimating…

Robotics · Computer Science 2022-07-05 Wen Yang , Zheng Gong , Baifu Huang , Xiaoping Hong

Integrated sensing and communications is a key enabler for the 6G wireless communication systems. The multiple sensing modalities will allow the base station to have a more accurate representation of the environment, leading to…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Mohammad Farzanullah , Han Zhang , Akram Bin Sediq , Ali Afana , Melike Erol-Kantarci

4D imaging radar is a type of low-cost millimeter-wave radar(costing merely 10-20$\%$ of lidar systems) capable of providing range, azimuth, elevation, and Doppler velocity information. Accurate extrinsic calibration between millimeter-wave…

Robotics · Computer Science 2025-07-29 Chuan Cao , Xiaoning Wang , Wenqian Xi , Han Zhang , Weidong Chen , Jingchuan Wang

The potentials of automotive radar for autonomous driving have not been fully exploited. We present a multi-input multi-output (MIMO) radar transmit and receive signal processing chain, a knowledge-aided approach exploiting the radar domain…

Signal Processing · Electrical Eng. & Systems 2021-11-03 Ruxin Zheng , Shunqiao Sun , David Scharff , Teresa Wu

LiDAR point clouds have become the most common data source in autonomous driving. However, due to the sparsity of point clouds, accurate and reliable detection cannot be achieved in specific scenarios. Because of their complementarity with…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Leichao Cui , Xiuxian Li , Min Meng , Xiaoyu Mo

Conventional SLAM systems using visual or LiDAR data often struggle in poor lighting and severe weather. Although 4D radar is suited for such environments, its sparse and noisy point clouds hinder accurate odometry estimation, while the…

Robotics · Computer Science 2025-12-11 Zhiheng Li , Weihua Wang , Qiang Shen , Yichen Zhao , Zheng Fang

This paper introduces in detail the effective method of comprehensive target judgment by using radar RA map and point cloud map. Different output of radar can effectively judge the road boundary of target and the relative coordinates of…

Signal Processing · Electrical Eng. & Systems 2024-04-25 Qingmian Wan , Hongli Peng , Xing Liao , Kuayue Liu

Millimeter-wave (mmWave) radars have found applications in a wide range of domains, including human tracking, health monitoring, and autonomous driving, for their unobtrusive nature and high range accuracy. These capabilities, however, if…

Signal Processing · Electrical Eng. & Systems 2023-05-09 Yanlong Qiu , Jiaxi Zhang , Yanjiao Chen , Jin Zhang , Bo Ji