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Consistent maps are key for most autonomous mobile robots, and they often use SLAM approaches to build such maps. Loop closures via place recognition help to maintain accurate pose estimates by mitigating global drift, and are thus key for…

Place recognition is an important capability for autonomously navigating vehicles operating in complex environments and under changing conditions. It is a key component for tasks such as loop closing in SLAM or global localization. In this…

Robotics · Computer Science 2023-04-21 Junyi Ma , Jun Zhang , Jintao Xu , Rui Ai , Weihao Gu , Xieyuanli Chen

Radar has shown strong potential for robust perception in autonomous driving; however, raw radar images are frequently degraded by noise and "ghost" artifacts, making object detection based solely on semantic features highly challenging. To…

Robotics · Computer Science 2025-09-23 Shuocheng Yang , Zikun Xu , Jiahao Wang , Shahid Nawaz , Jianqiang Wang , Shaobing Xu

Geometric navigation is nowadays a well-established field of robotics and the research focus is shifting towards higher-level scene understanding, such as Semantic Mapping. When a robot needs to interact with its environment, it must be…

Robotics · Computer Science 2023-11-23 Federico Rollo , Gennaro Raiola , Andrea Zunino , Nikolaos Tsagarakis , Arash Ajoudani

Highly automated driving functions currently often rely on a-priori knowledge from maps for planning and prediction in complex scenarios like cities. This makes map-relative localization an essential skill. In this paper, we address the…

Robotics · Computer Science 2021-04-30 Stefan Jürgens , Niklas Koch , Marc-Michael Meinecke

Place recognition is critical for both offline mapping and online localization. However, current single-sensor based place recognition still remains challenging in adverse conditions. In this paper, a heterogeneous measurements based…

Computer Vision and Pattern Recognition · Computer Science 2021-06-21 Huan Yin , Xuecheng Xu , Yue Wang , Rong Xiong

Localization for autonomous robots in prior maps is crucial for their functionality. This paper offers a solution to this problem for indoor environments called InstaLoc, which operates on an individual lidar scan to localize it within a…

Robotics · Computer Science 2023-07-06 Lintong Zhang , Tejaswi Digumarti , Georgi Tinchev , Maurice Fallon

LiDAR sensors are essential for autonomous systems, yet LiDAR fiducial markers (LFMs) lag behind visual fiducial markers (VFMs) in adoption and utility. Bridging this gap is vital for robotics and computer vision but challenging due to the…

Computer Vision and Pattern Recognition · Computer Science 2025-02-07 Yibo Liu

Place recognition is a key module in robotic navigation. The existing line of studies mostly focuses on visual place recognition to recognize previously visited places solely based on their appearance. In this paper, we address structural…

Robotics · Computer Science 2021-09-29 Giseop Kim , Sunwook Choi , Ayoung Kim

We present the concept of concurrent flow-based localization and mapping (FLAM) for autonomous field robots navigating within background flows. Different from the classical simultaneous localization and mapping (SLAM) problem, where the…

Robotics · Computer Science 2019-10-16 Zhuoyuan Song , Kamran Mohseni

In this work, we propose a method for large-scale topological localization based on radar scan images using learned descriptors. We present a simple yet efficient deep network architecture to compute a rotationally invariant discriminative…

Computer Vision and Pattern Recognition · Computer Science 2021-10-08 Jacek Komorowski , Monika Wysoczanska , Tomasz Trzcinski

Radio frequency (RF)-based indoor localization offers significant promise for applications such as indoor navigation, augmented reality, and pervasive computing. While deep learning has greatly enhanced localization accuracy and robustness,…

Information Theory · Computer Science 2025-12-09 Guosheng Wang , Shen Wang , Lei Yang

Radar place recognition often involves encoding a live scan as a vector and matching this vector to a database in order to recognise that the vehicle is in a location that it has visited before. Radar is inherently robust to lighting or…

Robotics · Computer Science 2024-03-05 Matthew Gadd , Paul Newman

Localization, or position fixing, is an important problem in robotics research. In this paper, we propose a novel approach for long-term localization in a changing environment using 3D LiDAR. We first create the map of a real environment…

Robotics · Computer Science 2019-10-29 Yilong Zhu , Bohuan Xue , Linwei Zheng , Huaiyang Huang , Ming Liu , Rui Fan

Can we localize a robot on a map only using monocular vision? This study presents NuRF, an adaptive and nudged particle filter framework in radiance fields for 6-DoF robot visual localization. NuRF leverages recent advancements in radiance…

Robotics · Computer Science 2025-03-27 Wugang Meng , Tianfu Wu , Huan Yin , Fumin Zhang

The LIght Detection And Ranging (LiDAR) sensor has become one of the most important perceptual devices due to its important role in simultaneous localization and mapping (SLAM). Existing SLAM methods are mainly developed for mechanical…

Robotics · Computer Science 2021-02-18 Han Wang , Chen Wang , Lihua Xie

In this study, we propose a novel visual localization approach to accurately estimate six degrees of freedom (6-DoF) poses of the robot within the 3D LiDAR map based on visual data from an RGB camera. The 3D map is obtained utilizing an…

We address the problem of vehicle self-localization from multi-modal sensor information and a reference map. The map is generated off-line by extracting landmarks from the vehicle's field of view, while the measurements are collected…

Robotics · Computer Science 2019-07-22 Nico Engel , Stefan Hoermann , Markus Horn , Vasileios Belagiannis , Klaus Dietmayer

We address the problem of robot localization using ground penetrating radar (GPR) sensors. Current approaches for localization with GPR sensors require a priori maps of the system's environment as well as access to approximate global…

Robotics · Computer Science 2021-03-30 Alexander Baikovitz , Paloma Sodhi , Michael Dille , Michael Kaess

LiDAR-based localization serves as a critical component in autonomous systems, yet existing approaches face persistent challenges in balancing repeatability, accuracy, and environmental adaptability. Traditional point cloud registration…

Robotics · Computer Science 2025-08-01 Haoxuan Jiang , Peicong Qian , Yusen Xie , Xiaocong Li , Ming Liu , Jun Ma