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In this paper, we propose the Graph-Learning-Dual Graph Convolutional Neural Network called GLDGCN based on the classic Graph Convolutional Neural Network(GCN) by introducing dual convolutional layer and graph learning layer. We apply…

机器学习 · 计算机科学 2024-04-26 Zibin Huang , Jun Xian

Simultaneous localization and mapping (SLAM) in slowly varying scenes is important for long-term robot task completion. Failing to detect scene changes may lead to inaccurate maps and, ultimately, lost robots. Classical SLAM algorithms…

(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…

机器人学 · 计算机科学 2025-10-31 Tian Yi Lim , Boyang Sun , Marc Pollefeys , Hermann Blum

Loop closure, as one of the crucial components in SLAM, plays an essential role in correcting the accumulated errors. Traditional appearance-based methods, such as bag-of-words models, are often limited by local 2D features and the volume…

计算机视觉与模式识别 · 计算机科学 2023-11-10 Zhenzhong Cao

Using the spatial structure of various indoor environments as prior knowledge, the robot would construct the map more efficiently. Autonomous mobile robots generally apply simultaneous localization and mapping (SLAM) methods to understand…

We present Human and Geometric Importance SLAM (HGI-SLAM), a novel approach to loop closure using salient and geometric features. Loop closure is a key element of SLAM, with many established methods for this problem. However, current…

机器人学 · 计算机科学 2022-09-20 Shuhul Mujoo , Jerry Ng

Vision-based simultaneous localization and mapping (vSLAM) is a well-established problem in mobile robotics and monocular vSLAM is one of the most challenging variations of that problem nowadays. In this work we study one of the core…

计算机视觉与模式识别 · 计算机科学 2018-06-26 Andrey Bokovoy , Konstantin Yakovlev

Visual loop closure detection traditionally relies on place recognition methods to retrieve candidate loops that are validated using computationally expensive RANSAC-based geometric verification. As false positive loop closures…

计算机视觉与模式识别 · 计算机科学 2025-05-29 Martin Büchner , Liza Dahiya , Simon Dorer , Vipul Ramtekkar , Kenji Nishimiya , Daniele Cattaneo , Abhinav Valada

An accurate and computationally efficient SLAM algorithm is vital for modern autonomous vehicles. To make a lightweight the algorithm, most SLAM systems rely on feature detection from images for vision SLAM or point cloud for laser-based…

机器人学 · 计算机科学 2021-03-22 Waqas Ali , Peilin Liu , Rendong Ying , Zheng Gong

In this work, we propose a simultaneous localization and mapping (SLAM) system using a monocular camera and Ultra-wideband (UWB) sensors. Our system, referred to as VRSLAM, is a multi-stage framework that leverages the strengths and…

机器人学 · 计算机科学 2023-03-21 Thien Hoang Nguyen , Shenghai Yuan , Lihua Xie

For VSLAM (Visual Simultaneous Localization and Mapping), localization is a challenging task, especially for some challenging situations: textureless frames, motion blur, etc.. To build a robust exploration and localization system in a…

机器人学 · 计算机科学 2018-07-04 Weinan Chen , Lei Zhu , Yisheng Guan , C. Ronald Kube , Hong Zhang

Hyperspectral image classification (HIC) is an important but challenging task, and a problem that limits the algorithmic development in this field is that the ground truths of hyperspectral images (HSIs) are extremely hard to obtain.…

计算机视觉与模式识别 · 计算机科学 2020-12-22 Hao Zeng , Qingjie Liu , Mingming Zhang , Xiaoqing Han , Yunhong Wang

In the real-life environments, due to the sudden appearance of windows, lights, and objects blocking the light source, the visual SLAM system can easily capture the low-contrast images caused by over-exposure or over-darkness. At this time,…

机器人学 · 计算机科学 2019-02-12 Yinghong Fang , Guangcun Shan , Xin Li , Wenliang Liu , Tian Wang , Hichem Snoussi

Semantic segmentation is a fundamental topic in computer vision. Several deep learning methods have been proposed for semantic segmentation with outstanding results. However, these models require a lot of densely annotated images. To…

计算机视觉与模式识别 · 计算机科学 2022-10-12 Jhony H. Giraldo , Vincenzo Scarrica , Antonino Staiano , Francesco Camastra , Thierry Bouwmans

Semi-supervised node classification in attributed graphs, i.e., graphs with node features, involves learning to classify unlabeled nodes given a partially labeled graph. Label predictions are made by jointly modeling the node and its'…

In this paper, we propose a novel loop closure detection algorithm that uses graph attention neural networks to encode semantic graphs to perform place recognition and then use semantic registration to estimate the 6 DoF relative pose…

计算机视觉与模式识别 · 计算机科学 2025-02-03 Liudi Yang , Ruben Mascaro , Ignacio Alzugaray , Sai Manoj Prakhya , Marco Karrer , Ziyuan Liu , Margarita Chli

In the semi-supervised learning field, Graph Convolution Network (GCN), as a variant model of GNN, has achieved promising results for non-Euclidean data by introducing convolution into GNN. However, GCN and its variant models fail to safely…

机器学习 · 计算机科学 2022-07-06 Zhi Yang , Yadong Yan , Haitao Gan , Jing Zhao , Zhiwei Ye

Robust and accurate state estimation remains a challenge in robotics, Augmented, and Virtual Reality (AR/VR), even as Visual-Inertial Simultaneous Localisation and Mapping (VI-SLAM) getting commoditised. Here, a full VI-SLAM system is…

图像与视频处理 · 电气工程与系统科学 2022-08-15 Stefan Leutenegger

In this letter, we present a neural field-based real-time monocular mapping framework for accurate and dense Simultaneous Localization and Mapping (SLAM). Recent neural mapping frameworks show promising results, but rely on RGB-D or pose…

机器人学 · 计算机科学 2023-12-18 Wei Zhang , Tiecheng Sun , Sen Wang , Qing Cheng , Norbert Haala

Visual loop closure detection is an important module in visual simultaneous localization and mapping (SLAM), which associates current camera observation with previously visited places. Loop closures correct drifts in trajectory estimation…

机器人学 · 计算机科学 2024-07-18 Jingwen Yu , Hanjing Ye , Jianhao Jiao , Ping Tan , Hong Zhang