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Event-based visual odometry is a specific branch of visual Simultaneous Localization and Mapping (SLAM) techniques, which aims at solving tracking and mapping subproblems (typically in parallel), by exploiting the special working principles…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Junkai Niu , Sheng Zhong , Xiuyuan Lu , Shaojie Shen , Guillermo Gallego , Yi Zhou

Accurate positioning, navigation, and timing (PNT) is fundamental to the operation of modern technologies and a key enabler of autonomous systems. A very important component of PNT is the Global Navigation Satellite System (GNSS) which…

We present VGGT-SLAM, a dense RGB SLAM system constructed by incrementally and globally aligning submaps created from the feed-forward scene reconstruction approach VGGT using only uncalibrated monocular cameras. While related works align…

Computer Vision and Pattern Recognition · Computer Science 2025-05-26 Dominic Maggio , Hyungtae Lim , Luca Carlone

We present the first application of 3D Gaussian Splatting in monocular SLAM, the most fundamental but the hardest setup for Visual SLAM. Our method, which runs live at 3fps, utilises Gaussians as the only 3D representation, unifying the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Hidenobu Matsuki , Riku Murai , Paul H. J. Kelly , Andrew J. Davison

We present LiV-GS, a LiDAR-visual SLAM system in outdoor environments that leverages 3D Gaussian as a differentiable spatial representation. Notably, LiV-GS is the first method that directly aligns discrete and sparse LiDAR data with…

Robotics · Computer Science 2024-11-20 Renxiang Xiao , Wei Liu , Yushuai Chen , Liang Hu

Visual SLAM algorithms have been enhanced through the exploration of Gaussian Splatting representations, particularly in generating high-fidelity dense maps. While existing methods perform reliably in static environments, they often…

Robotics · Computer Science 2025-09-03 Yi Liu , Keyu Fan , Bin Lan , Houde Liu

Simultaneous localization and mapping (SLAM) are essential in numerous robotics applications, such as autonomous navigation. Traditional SLAM approaches infer the metric state of the robot along with a metric map of the environment. While…

Robotics · Computer Science 2023-02-20 Roee Mor , Vadim Indelman

Existing solutions to visual simultaneous localization and mapping (V-SLAM) assume that errors in feature extraction and matching are independent and identically distributed (i.i.d), but this assumption is known to not be true -- features…

Computer Vision and Pattern Recognition · Computer Science 2020-11-20 Sadegh Rabiee , Joydeep Biswas

Recent advances in neural radiation fields (NeRF) and 3D Gaussian-based SLAM have achieved impressive localization accuracy and high-quality dense mapping in static scenes. However, these methods remain challenged in dynamic environments,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Wenhua Wu , Chenpeng Su , Siting Zhu , Tianchen Deng , Jianhao Jiao , Guangming Wang , Dimitrios Kanoulas , Zhe Liu , Hesheng Wang

Combining 3D Gaussian splatting with Simultaneous Localization and Mapping (SLAM) has gained popularity as it enables continuous 3D environment reconstruction during motion. However, existing methods struggle in dynamic environments,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Yangfan Zhao , Hanwei Zhang , Ke Huang , Qiufeng Wang , Zhenzhou Shao , Dengyu Wu

Simultaneous Localization and Mapping (SLAM) is an essential component of autonomous robotic applications and self-driving vehicles, enabling them to understand and operate in their environment. Many SLAM systems have been proposed in the…

Robotics · Computer Science 2025-01-14 Lorenzo Montano-Oliván , Julio A. Placed , Luis Montano , María T. Lázaro

Simultaneous mapping and localization (SLAM) in an real indoor environment is still a challenging task. Traditional SLAM approaches rely heavily on low-level geometric constraints like corners or lines, which may lead to tracking failure in…

Robotics · Computer Science 2019-10-01 Xueyang Kang , Shunying Yuan

Visual simultaneous localization and mapping (SLAM) plays a critical role in autonomous robotic systems, especially where accurate and reliable measurements are essential for navigation and sensing. In feature-based SLAM, the quantityand…

Robotics · Computer Science 2025-09-03 Haolan Zhang , Chenghao Li , Thanh Nguyen Canh , Lijun Wang , Nak Young Chong

We introduce RGS-SLAM, a robust Gaussian-splatting SLAM framework that replaces the residual-driven densification stage of GS-SLAM with a training-free correspondence-to-Gaussian initialization. Instead of progressively adding Gaussians as…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Wei-Tse Cheng , Yen-Jen Chiou , Yuan-Fu Yang

3D Gaussian Splatting is a powerful visual representation, providing high-quality and efficient 3D scene reconstruction, but it is crucially dependent on accurate camera poses typically obtained from computationally intensive processes like…

Robotics · Computer Science 2026-04-15 Daniel Yang , Jungseok Hong , John J. Leonard , Yogesh Girdhar

SLAM (Simultaneous Localization and Mapping) and Odometry are important systems for estimating the position of mobile devices, such as robots and cars, utilizing one or more sensors. Particularly in camera-based SLAM or Odometry,…

Robotics · Computer Science 2026-03-20 Sanghyun Park , Soohee Han

A reliable pose estimator robust to environmental disturbances is desirable for mobile robots. To this end, inertial measurement units (IMUs) play an important role because they can perceive the full motion state of the vehicle…

Robotics · Computer Science 2022-11-30 Yibin Wu , Jian Kuang , Xiaoji Niu , Jens Behley , Lasse Klingbeil , Heiner Kuhlmann

In the absence of external reference position information (e.g. GNSS) SLAM has proven to be an effective method for indoor navigation. The positioning drift can be reduced with regular loop-closures and global relaxation as the backend,…

Robotics · Computer Science 2018-02-20 Jacky C. K. Chow

Recent work has shown that 3D Gaussian-based SLAM enables high-quality reconstruction, accurate pose estimation, and real-time rendering of scenes. However, these approaches are built on a tremendous number of redundant 3D Gaussian…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Tianchen Deng , Chang Nie , Shuhong Liu , Wenhua Wu , Jianfei Yang , Shenghai Yuan , Jiuming Liu , Danwei Wang , Hesheng Wang

Recent progress in dense SLAM has primarily targeted monocular setups, often at the expense of robustness and geometric coverage. We present MCGS-SLAM, the first purely RGB-based multi-camera SLAM system built on 3D Gaussian Splatting…

Robotics · Computer Science 2026-03-10 Zhihao Cao , Hanyu Wu , Li Wa Tang , Zizhou Luo , Wei Zhang , Marc Pollefeys , Zihan Zhu , Martin R. Oswald