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Currently, self-driving cars rely greatly on the Global Positioning System (GPS) infrastructure, albeit there is an increasing demand for alternative methods for GPS-denied environments. One of them is known as place recognition, which…

Robotics · Computer Science 2018-05-16 Avelino Forechi , Thiago Oliveira-Santos , Claudine Badue , Alberto F. De Souza

Semantic Simultaneous Localization and Mapping (SLAM) is a critical area of research within robotics and computer vision, focusing on the simultaneous localization of robotic systems and associating semantic information to construct the…

Robotics · Computer Science 2025-10-02 Thanh Nguyen Canh , Haolan Zhang , Xiem HoangVan , Nak Young Chong

To autonomously navigate in real-world environments, special in search and rescue operations, Unmanned Aerial Vehicles (UAVs) necessitate comprehensive maps to ensure safety. However, the prevalent metric map often lacks semantic…

Robotics · Computer Science 2024-01-17 Thanh Nguyen Canh , Armagan Elibol , Nak Young Chong , Xiem HoangVan

Semantic localization, i.e., robot self-localization with semantic image modality, is critical in recently emerging embodied AI applications (e.g., point-goal navigation, object-goal navigation, vision language navigation) and topological…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Mitsuki Yoshida , Kanji Tanaka , Ryogo Yamamoto , Daiki Iwata

Achieving more powerful semantic representations and semantic understanding is one of the key problems in improving the performance of semantic communication systems. This work focuses on enhancing the semantic understanding of the text…

Signal Processing · Electrical Eng. & Systems 2025-04-03 Mengli Tao , Jiancun Fan , Jie Luo , Huiqiang Xie

Recent work has shown impressive localization performance using only images of ground textures taken with a downward facing monocular camera. This provides a reliable navigation method that is robust to feature sparse environments and…

Robotics · Computer Science 2023-03-13 Kyle M. Hart , Brendan Englot , Ryan P. O'Shea , John D. Kelly , David Martinez

Place recognition gives a SLAM system the ability to correct cumulative errors. Unlike images that contain rich texture features, point clouds are almost pure geometric information which makes place recognition based on point clouds…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Lin Li , Xin Kong , Xiangrui Zhao , Tianxin Huang , Yong Liu

Many robotics applications require precise pose estimates despite operating in large and changing environments. This can be addressed by visual localization, using a pre-computed 3D model of the surroundings. The pose estimation then…

Computer Vision and Pattern Recognition · Computer Science 2018-09-20 Paul-Edouard Sarlin , Frédéric Debraine , Marcin Dymczyk , Roland Siegwart , Cesar Cadena

Visual Simultaneous Localization and Mapping (vSLAM) has achieved great progress in the computer vision and robotics communities, and has been successfully used in many fields such as autonomous robot navigation and AR/VR. However, vSLAM…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Kaiqi Chen , Junhao Xiao , Jialing Liu , Qiyi Tong , Heng Zhang , Ruyu Liu , Jianhua Zhang , Arash Ajoudani , Shengyong Chen

We consider the problem of localizing and segmenting individual teeth inside 3D Cone-Beam Computed Tomography (CBCT) images. To handle large image sizes we approach this task with a coarse-to-fine framework, where the whole volume is first…

Computer Vision and Pattern Recognition · Computer Science 2018-10-25 Matvey Ezhov , Adel Zakirov , Maxim Gusarev

Maps are a key component in image-based camera localization and visual SLAM systems: they are used to establish geometric constraints between images, correct drift in relative pose estimation, and relocalize cameras after lost tracking. The…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Samarth Brahmbhatt , Jinwei Gu , Kihwan Kim , James Hays , Jan Kautz

Visual localization remains challenging in dynamic environments where fluctuating lighting, adverse weather, and moving objects disrupt appearance cues. Despite advances in feature representation, current absolute pose regression methods…

Computer Vision and Pattern Recognition · Computer Science 2025-06-11 Zhongtao Tian , Wenhao Huang , Zhidong Chen , Xiao Wei Sun

Visual localization is a critical task in mobile robotics, and researchers are continuously developing new approaches to enhance its efficiency. In this article, we propose a novel approach to improve the accuracy of visual localization…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Artem Nenashev , Mikhail Kurenkov , Andrei Potapov , Iana Zhura , Maksim Katerishich , Dzmitry Tsetserukou

Most 6-DoF localization and SLAM systems use static landmarks but ignore dynamic objects because they cannot be usefully incorporated into a typical pipeline. Where dynamic objects have been incorporated, typical approaches have attempted…

Visual relocalization is crucial for autonomous visual localization and navigation of mobile robotics. Due to the improvement of CNN-based object detection algorithm, the robustness of visual relocalization is greatly enhanced especially in…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Yifan Zhu , Lingjuan Miao , Haitao Wu , Zhiqiang Zhou , Weiyi Chen , Longwen Wu

Visual localization is a key step in many robotics pipelines, allowing the robot to (approximately) determine its position and orientation in the world. An efficient and scalable approach to visual localization is to use image retrieval…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Asha Anoosheh , Torsten Sattler , Radu Timofte , Marc Pollefeys , Luc Van Gool

Semantic mapping is the task of providing a robot with a map of its environment beyond the open, navigable space of traditional Simultaneous Localization and Mapping (SLAM) algorithms by attaching semantics to locations. The system…

Robotics · Computer Science 2022-09-26 David Balaban , Justin Hart

Where am I? This is one of the most critical questions that any intelligent system should answer to decide whether it navigates to a previously visited area. This problem has long been acknowledged for its challenging nature in simultaneous…

Robotics · Computer Science 2022-11-10 Konstantinos A. Tsintotas , Loukas Bampis , Antonios Gasteratos

Cross-modal localization has drawn increasing attention in recent years, while the visual relocalization in prior LiDAR maps is less studied. Related methods usually suffer from inconsistency between the 2D texture and 3D geometry,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Qiyuan Shen , Hengwang Zhao , Weihao Yan , Chunxiang Wang , Tong Qin , Ming Yang

Software visualizations can provide a concise overview of a complex software system. Unfortunately, since software has no physical shape, there is no "natural" mapping of software to a two-dimensional space. As a consequence most…

Software Engineering · Computer Science 2012-09-26 Adrian Kuhn , Peter Loretan , Oscar Nierstrasz