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The evolving field of mobile robotics has indeed increased the demand for simultaneous localization and mapping (SLAM) systems. To augment the localization accuracy and mapping efficacy of SLAM, we refined the core module of the SLAM…

Robotics · Computer Science 2024-10-08 Ang He , Xi-mei Wu , Xiao-bin Guo , Li-bin Liu

In this article, we address the timely topic of cellular bistatic simultaneous localization and mapping (SLAM) with specific focus on end-to-end processing solutions, from raw I/Q samples, via channel parameter estimation to user equipment…

Signal Processing · Electrical Eng. & Systems 2024-05-21 Elizaveta Rastorgueva-Foi , Ossi Kaltiokallio , Yu Ge , Matias Turunen , Jukka Talvitie , Bo Tan , Musa Furkan Keskin , Henk Wymeersch , Mikko Valkama

mmWave communication has come up as the unexplored spectrum for 5G services. With new standards for 5G NR positioning, more off-the-shelf platforms and algorithms are needed to perform indoor positioning. An object can be accurately…

Signal Processing · Electrical Eng. & Systems 2024-03-15 Neharika Valecha , Jesus Omar Lacruz , Michael Lentmaier , Joerg Widmer , Fredrik Tufvesson

This paper presents ORB-SLAM, a feature-based monocular SLAM system that operates in real time, in small and large, indoor and outdoor environments. The system is robust to severe motion clutter, allows wide baseline loop closing and…

Robotics · Computer Science 2015-09-21 Raul Mur-Artal , J. M. M. Montiel , Juan D. Tardos

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…

This paper presents, for the first time, an open-source implementation of the 3GPP Uplink Time Difference of Arrival (UL-TDoA) positioning method using the OpenAirInterface (OAI) framework. UL-TDoA is a critical positioning technique in 5G…

A robust nonlinear stochastic observer for simultaneous localization and mapping (SLAM) is proposed using the available uncertain measurements of angular velocity, translational velocity, and features. The proposed observer is posed on the…

Systems and Control · Electrical Eng. & Systems 2021-09-15 Marium Tawhid , Ajay Singh Ludher , Hashim A. Hashim

Recent advances in dense 3D reconstruction have demonstrated strong capability in accurately capturing local geometry. However, extending these methods to incremental global reconstruction, as required in SLAM systems, remains challenging.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Kunyi Li , Michael Niemeyer , Sen Wang , Stefano Gasperini , Nassir Navab , Federico Tombari

SLAM (Simultaneous Localisation and Mapping) is a crucial component for robotic systems, providing a map of an environment, the current location and previous trajectory of a robot. While 3D LiDAR SLAM has received notable improvements in…

Robotics · Computer Science 2025-04-29 Leon Davies , Baihua Li , Mohamad Saada , Simon Sølvsten , Qinggang Meng

(Visual) Simultaneous Localization and Mapping (SLAM) remains a fundamental challenge in enabling autonomous systems to navigate and understand large-scale environments. Traditional SLAM approaches struggle to balance efficiency and…

Robotics · Computer Science 2025-10-31 Tian Yi Lim , Boyang Sun , Marc Pollefeys , Hermann Blum

Autonomous navigation in GPS-denied and visually degraded environments remains challenging for unmanned aerial vehicles (UAVs). To this end, we investigate the use of a monocular thermal camera as a standalone sensor on a UAV platform for…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Hürkan Şahin , Huy Xuan Pham , Van Huyen Dang , Alper Yegenoglu , Erdal Kayacan

This paper presents P2U-SLAM, a visual Simultaneous Localization And Mapping (SLAM) system with a wide Field of View (FoV) camera, which utilizes pose uncertainty and point uncertainty. While the wide FoV enables considerable repetitive…

Robotics · Computer Science 2026-01-06 Yufan Zhang , Kailun Yang , Ze Wang , Kaiwei Wang

Sparse and feature SLAM methods provide robust camera pose estimation. However, they often fail to capture the level of detail required for inspection and scene awareness tasks. Conversely, dense SLAM approaches generate richer scene…

Robotics · Computer Science 2025-05-16 Maaz Qureshi , Alexander Werner , Zhenan Liu , Amir Khajepour , George Shaker , William Melek

Neural RGBD SLAM techniques have shown promise in dense Simultaneous Localization And Mapping (SLAM), yet face challenges such as error accumulation during camera tracking resulting in distorted maps. In response, we introduce Loopy-SLAM…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Lorenzo Liso , Erik Sandström , Vladimir Yugay , Luc Van Gool , Martin R. Oswald

The monocular visual-inertial system (VINS), which consists one camera and one low-cost inertial measurement unit (IMU), is a popular approach to achieve accurate 6-DOF state estimation. However, such locally accurate visual-inertial…

Computer Vision and Pattern Recognition · Computer Science 2018-03-06 Tong Qin , Perliang Li , Shaojie Shen

In this paper, we study probabilistic time-of-arrival (ToA) and angle-of-arrival (AoA) joint localization in real indoor environments. To mitigate the effects of multipath propagation, the joint localization algorithm incorporates into the…

Networking and Internet Architecture · Computer Science 2021-04-01 Chunhua Geng , Traian E. Abrudan , Veli-Matti Kolmonen , Howard Huang

Time-of-Flight (ToF) sensors provide efficient active depth sensing at relatively low power budgets; among such designs, only very sparse measurements from low-resolution sensors are considered to meet the increasingly limited power…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Andrea Conti , Matteo Poggi , Valerio Cambareri , Martin R. Oswald , Stefano Mattoccia

Simultaneous localization and mapping (SLAM) has been extensively researched in past years particularly with regard to range-based or visual-based sensors. Instead of deploying dedicated devices that use visual features, it is more…

Networking and Internet Architecture · Computer Science 2020-01-10 Ran Liu , Sumudu Hasala Marakkalage , Madhushanka Padmal , Thiruketheeswaran Shaganan , Chau Yuen , Yong Liang Guan , U-Xuan Tan

This paper proposes a new method that fuses acoustic measurements in the reverberation field and low-accuracy inertial measurement unit (IMU) motion reports for simultaneous localization and mapping (SLAM). Different from existing studies…

Robotics · Computer Science 2023-01-03 Wenhao Qiu , Gang Wang , Wenjing Zhang

Monocular simultaneous localization and mapping (SLAM) algorithms estimate drone poses and build a 3D map using a single camera. Current algorithms include sparse methods that lack detailed geometry, while learning-driven approaches produce…

Robotics · Computer Science 2025-11-25 Jeryes Danial , Yosi Ben Asher , Itzik Klein