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Simultaneous Localization and Mapping (SLAM) in large-scale, unknown, and complex subterranean environments is a challenging problem. Sensors must operate in off-nominal conditions; uneven and slippery terrains make wheel odometry…

Place recognition is a core component of Simultaneous Localization and Mapping (SLAM) algorithms. Particularly in visual SLAM systems, previously-visited places are recognized by measuring the appearance similarity between images…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Jiawei Mo , Junaed Sattar

We propose a novel real-time LiDAR intensity image-based simultaneous localization and mapping method , which addresses the geometry degeneracy problem in unstructured environments. Traditional LiDAR-based front-end odometry mostly relies…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Wenqiang Du , Giovanni Beltrame

This paper uses the smoothing and mapping framework to solve the SLAM problem in indoor environments; focusing on how some key issues such as feature extraction and data association can be handled by applying probabilistic techniques. For…

Robotics · Computer Science 2014-02-21 Leonardo Romero , Carlos Lara

In this paper, we propose panoramic annular simultaneous localization and mapping (PA-SLAM), a visual SLAM system based on panoramic annular lens. A hybrid point selection strategy is put forward in the tracking front-end, which ensures…

Robotics · Computer Science 2021-08-04 Hao Chen , Weijian Hu , Kailun Yang , Jian Bai , Kaiwei Wang

The capability of multi-robot SLAM approaches to merge localization history and maps from different observers is often challenged by the difficulty in establishing data association. Loop closure detection between perceptual inputs of…

Recently, 3D Gaussian splatting-based RGB-D SLAM displays remarkable performance of high-fidelity 3D reconstruction. However, the lack of depth rendering consistency and efficient loop closure limits the quality of its geometric…

Robotics · Computer Science 2025-06-03 Xingguang Zhong , Yue Pan , Liren Jin , Marija Popović , Jens Behley , Cyrill Stachniss

The present work proposes a solution to the challenging problem of registering two partial point sets of the same object with very limited overlap. We leverage the fact that most objects found in man-made environments contain a plane of…

Computational Geometry · Computer Science 2020-02-20 Lan Hu , Haomin Shi , Laurent Kneip

Simultaneous Localization and Mapping (SLAM) techniques play a key role towards long-term autonomy of mobile robots due to the ability to correct localization errors and produce consistent maps of an environment over time. Contrarily to…

This paper presents a novel indoor layout estimation system based on the fusion of 2D LiDAR and intensity camera data. A ground robot explores an indoor space with a single floor and vertical walls, and collects a sequence of intensity…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Jieyu Li , Robert Stevenson

In this paper, we present an extension to LaserNet, an efficient and state-of-the-art LiDAR based 3D object detector. We propose a method for fusing image data with the LiDAR data and show that this sensor fusion method improves the…

Computer Vision and Pattern Recognition · Computer Science 2019-04-26 Gregory P. Meyer , Jake Charland , Darshan Hegde , Ankit Laddha , Carlos Vallespi-Gonzalez

Spinning LiDAR data are prevalent for 3D vision tasks. Since LiDAR data is presented in the form of point clouds, expensive 3D operations are usually required. This paper revisits spinning LiDAR scan formation and presents a cylindrical…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Wei Dong , Kwonyoung Ryu , Michael Kaess , Jaesik Park

LiDAR odometry is a fundamental task for various areas such as robotics, autonomous driving. This problem is difficult since it requires the systems to be highly robust running in noisy real-world data. Existing methods are mostly local…

Computer Vision and Pattern Recognition · Computer Science 2020-04-10 Zhichao Li , Naiyan Wang

This paper is about extremely robust and lightweight localisation using LiDAR point clouds based on instance segmentation and graph matching. We model 3D point clouds as fully-connected graphs of semantically identified components where…

Computer Vision and Pattern Recognition · Computer Science 2022-07-01 Georgi Pramatarov , Daniele De Martini , Matthew Gadd , Paul Newman

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

The ability to map challenging subarctic environments opens new horizons for robotic deployments in industries such as forestry, surveillance, and open-pit mining. In this paper, we explore possibilities of large-scale lidar mapping in a…

Currently, GPS is by far the most popular global localization method. However, it is not always reliable or accurate in all environments. SLAM methods enable local state estimation but provide no means of registering the local map to a…

For large-scale and long-term simultaneous localization and mapping (SLAM), a robot has to deal with unknown initial positioning caused by either the kidnapped robot problem or multi-session mapping. This paper addresses these problems by…

Robotics · Computer Science 2024-07-23 Mathieu Labbe , François Michaud

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 complex environments, autonomous robot navigation and environmental perception pose higher requirements for SLAM technology. This paper presents a novel method for semantically enhancing 3D point cloud maps with thermal information. By…

Robotics · Computer Science 2026-01-15 Jiajun Sun , Yangyi Ou , Haoyuan Zheng , Chao yang , Yue Ma