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Related papers: CrossLoc: Scalable Aerial Localization Assisted by…

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We propose an accurate and interpretable fine-grained cross-view localization method that estimates the 3 Degrees of Freedom (DoF) pose of a ground-level image by matching its local features with a reference aerial image. Unlike prior…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Zimin Xia , Chenghao Xu , Alexandre Alahi

Recent advancements in energy-efficient hardware technology is driving the exponential growth we are experiencing in the Internet of Things (IoT) space, with more pervasive computations being performed near to data generation sources. A…

Computer Vision and Pattern Recognition · Computer Science 2019-01-01 Adrian Cosma , Ion Emilian Radoi , Valentin Radu

Cross-view geo-localization aims to estimate the location of a query ground image by matching it to a reference geo-tagged aerial images database. As an extremely challenging task, its difficulties root in the drastic view changes and…

Computer Vision and Pattern Recognition · Computer Science 2023-06-19 Xiaohan Zhang , Xingyu Li , Waqas Sultani , Yi Zhou , Safwan Wshah

Fiducial markers have been playing an important role in augmented reality (AR), robot navigation, and general applications where the relative pose between a camera and an object is required. Here we introduce TopoTag, a robust and scalable…

Computer Vision and Pattern Recognition · Computer Science 2020-04-16 Guoxing Yu , Yongtao Hu , Jingwen Dai

Localization in topological maps is essential for image-based navigation using an RGB camera. Localization using only one camera can be challenging in medium-to-large-sized environments because similar-looking images are often observed…

Robotics · Computer Science 2022-04-29 Takahiro Niwa , Shun Taguchi , Noriaki Hirose

Cross-view geo-localization aims at establishing location correspondences between different viewpoints. Existing approaches typically learn cross-view correlations through direct feature similarity matching, often overlooking semantic…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Hongyang Zhang , Yinhao Liu , Zhenyu Kuang

Determining the precise geographic location of an image at a global scale remains an unsolved challenge. Standard image retrieval techniques are inefficient due to the sheer volume of images (>100M) and fail when coverage is insufficient.…

Computer Vision and Pattern Recognition · Computer Science 2025-10-31 Philipp Lindenberger , Paul-Edouard Sarlin , Jan Hosang , Matteo Balice , Marc Pollefeys , Simon Lynen , Eduard Trulls

Visual relocalization is a fundamental task in the field of 3D computer vision, estimating a camera's pose when it revisits a previously known scene. While point-based hierarchical relocalization methods have shown strong scalability and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Huaqi Tao , Bingxi Liu , Guangcheng Chen , Fulin Tang , Li He , Hong Zhang

Relocalization is a fundamental task in the field of robotics and computer vision. There is considerable work in the field of deep camera relocalization, which directly estimates poses from raw images. However, learning-based methods have…

Robotics · Computer Science 2021-03-23 Wei Wang , Pedro P. B. de Gusmo , Bo Yang , Andrew Markham , Niki Trigoni

In this paper, a sensing-assisted non-line-of-sight (NLoS) identification method for dynamic uncrewed aerial vehicle (UAV) positioning is proposed for the first time. For urban UAV-to-ground scenarios, a new multi-modal…

Signal Processing · Electrical Eng. & Systems 2026-05-14 Huijuan Qiao , Lu Bai , Mingran Sun , Mengyuan Lu , Jiajing Chen , Xiang Cheng

Localization is a key requirement for mobile robot autonomy and human-robot interaction. Vision-based localization is accurate and flexible, however, it incurs a high computational burden which limits its application on many…

Robotics · Computer Science 2016-12-30 Ronald Clark , Sen Wang , Hongkai Wen , Niki Trigoni , Andrew Markham

Obtaining accurate 3D object poses is vital for numerous computer vision applications, such as 3D reconstruction and scene understanding. However, annotating real-world objects is time-consuming and challenging. While synthetically…

Computer Vision and Pattern Recognition · Computer Science 2023-05-26 Jiahao Yang , Wufei Ma , Angtian Wang , Xiaoding Yuan , Alan Yuille , Adam Kortylewski

Camera pose estimation in known scenes is a 3D geometry task recently tackled by multiple learning algorithms. Many regress precise geometric quantities, like poses or 3D points, from an input image. This either fails to generalize to new…

This paper proposes a method for topological mapping and navigation using a monocular camera. Based on AnyLoc, keyframes are converted into descriptors to construct topological relationships, enabling loop detection and map building. Unlike…

Robotics · Computer Science 2026-01-06 Wenzheng Zhang , Yoshitaka Hara , Sousuke Nakamura

Robust place recognition is essential for reliable localization in robotics, particularly in complex environments with frequent indoor-outdoor transitions. However, existing LiDAR-based datasets often focus on outdoor scenarios and lack…

Robotics · Computer Science 2025-12-19 Jaejin Jeon , Seonghoon Ryoo , Sang-Duck Lee , Soomok Lee , Seungwoo Jeong

In this thesis, we leverage monocular cameras on aerial robots to predict depth and semantic maps in low-altitude unstructured environments. We propose a joint deep-learning architecture, named Co-SemDepth, that can perform the two tasks…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Yara AlaaEldin

Localization in already mapped environments is a critical component in many robotics and automotive applications, where previously acquired information can be exploited along with sensor fusion to provide robust and accurate localization…

Robotics · Computer Science 2024-09-10 Lorenzo Montano-Oliván , Julio A. Placed , Luis Montano , María T. Lázaro

The large variation of viewpoint and irrelevant content around the target always hinder accurate image retrieval and its subsequent tasks. In this paper, we investigate an extremely challenging task: given a ground-view image of a landmark,…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Zelong Zeng , Zheng Wang , Fan Yang , Shin'ichi Satoh

The rapid progress in machine learning models has significantly boosted the potential for real-world applications such as autonomous vehicles, disease diagnoses, and recognition of emergencies. The performance of many machine learning…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Sergei Voronin , Abubakar Siddique , Muhammad Iqbal

In this work we consider UAVs as cooperative agents supporting human users in their operations. In this context, the 3D localisation of the UAV assistant is an important task that can facilitate the exchange of spatial information between…

Computer Vision and Pattern Recognition · Computer Science 2020-08-24 Georgios Albanis , Nikolaos Zioulis , Anastasios Dimou , Dimitrios Zarpalas , Petros Daras