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Place recognition is one of the most challenging problems in computer vision, and has become a key part in mobile robotics and autonomous driving applications for performing loop closure in visual SLAM systems. Moreover, the difficulty of…

Computer Vision and Pattern Recognition · Computer Science 2015-05-28 Ruben Gomez-Ojeda , Manuel Lopez-Antequera , Nicolai Petkov , Javier Gonzalez-Jimenez

In this paper we address the task of visual place recognition (VPR), where the goal is to retrieve the correct GPS coordinates of a given query image against a huge geotagged gallery. While recent works have shown that building descriptors…

Computer Vision and Pattern Recognition · Computer Science 2022-01-26 Valerio Paolicelli , Antonio Tavera , Carlo Masone , Gabriele Berton , Barbara Caputo

Visual Place Recognition is a task that aims to predict the place of an image (called query) based solely on its visual features. This is typically done through image retrieval, where the query is matched to the most similar images from a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Gabriele Berton , Gabriele Trivigno , Barbara Caputo , Carlo Masone

Visual Place Recognition (VPR) is a crucial component of 6-DoF localization, visual SLAM and structure-from-motion pipelines, tasked to generate an initial list of place match hypotheses by matching global place descriptors. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-02-21 Ahmad Khaliq , Michael Milford , Sourav Garg

Global localisation from visual data is a challenging problem applicable to many robotics domains. Prior works have shown that neural networks can be trained to map images of an environment to absolute camera pose within that environment,…

Robotics · Computer Science 2024-01-03 Christopher J. Holder , Muhammad Shafique

Visual Place Recognition (VPR) is an important component in both computer vision and robotics applications, thanks to its ability to determine whether a place has been visited and where specifically. A major challenge in VPR is to handle…

Robotics · Computer Science 2019-02-27 Peng Yin , Lingyun Xu , Xueqian Li , Chen Yin , Yingli Li , Rangaprasad Arun Srivatsan , Lu Li , Jianmin Ji , Yuqing He

Recently, Neural Radiance Fields (NeRF) has shown promising performances on reconstructing 3D scenes and synthesizing novel views from a sparse set of 2D images. Albeit effective, the performance of NeRF is highly influenced by the quality…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Xuran Pan , Zihang Lai , Shiji Song , Gao Huang

Visual Place Recognition (VPR) enables systems to identify previously visited locations within a map, a fundamental task for autonomous navigation. Prior works have developed VPR solutions using event cameras, which asynchronously measure…

Robotics · Computer Science 2025-09-30 Vignesh Ramanathan , Michael Milford , Tobias Fischer

Visual Place Recognition (VPR) is the ability to correctly recall a previously visited place using visual information under environmental, viewpoint and appearance changes. An emerging trend in VPR is the use of sequence-based filtering…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Mihnea-Alexandru Tomită , Mubariz Zaffar , Michael Milford , Klaus McDonald-Maier , Shoaib Ehsan

Visual place recognition (VPR) - the act of recognizing a familiar visual place - becomes difficult when there is extreme environmental appearance change or viewpoint change. Particularly challenging is the scenario where both phenomena…

Can knowing where you are assist in perceiving objects in your surroundings, especially under adverse weather and lighting conditions? In this work we investigate whether a prior map can be leveraged to aid in the detection of dynamic…

Computer Vision and Pattern Recognition · Computer Science 2023-07-03 Stephen Hausler , Sourav Garg , Punarjay Chakravarty , Shubham Shrivastava , Ankit Vora , Michael Milford

Visual place recognition (VPR) is an essential component of robot navigation and localization systems that allows them to identify a place using only image data. VPR is challenging due to the significant changes in a place's appearance…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Bruno Arcanjo , Bruno Ferrarini , Michael Milford , Klaus D. McDonald-Maier , Shoaib Ehsan

Visual Place Recognition (VPR) is a scene-oriented image retrieval problem in computer vision in which re-ranking based on local features is commonly employed to improve performance. In robotics, VPR is also referred to as Loop Closure…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Bingxi Liu , Hao Chen , Shiyi Guo , Yihong Wu , Jinqiang Cui , Hong Zhang

A recent approach to the Visual Place Recognition (VPR) problem has been to fuse the place recognition estimates of multiple complementary VPR techniques simultaneously. However, selecting the optimal set of techniques to use in a specific…

Computer Vision and Pattern Recognition · Computer Science 2021-12-10 Stephen Hausler , Tobias Fischer , Michael Milford

Visual place recognition (VPR) is usually considered as a specific image retrieval problem. Limited by existing training frameworks, most deep learning-based works cannot extract sufficiently stable global features from RGB images and rely…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Yanqing Shen , Sanping Zhou , Jingwen Fu , Ruotong Wang , Shitao Chen , Nanning Zheng

Autonomous robotic tasks require actively perceiving the environment to achieve application-specific goals. In this paper, we address the problem of positioning an RGB camera to collect the most informative images to represent an unknown…

Robotics · Computer Science 2023-07-25 Liren Jin , Xieyuanli Chen , Julius Rückin , Marija Popović

Visual Place Recognition (VPR) is a fundamental task that allows a robotic platform to successfully localise itself in the environment. For decentralised VPR applications where the visual data has to be transmitted between several agents,…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Mihnea-Alexandru Tomita , Bruno Ferrarini , Michael Milford , Klaus McDonald-Maier , Shoaib Ehsan

Visual Place Recognition (VPR) in indoor environments is beneficial to humans and robots for better localization and navigation. It is challenging due to appearance changes at various frequencies, and difficulties of obtaining ground truth…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Diwei Sheng , Anbang Yang , John-Ross Rizzo , Chen Feng

Landmark-based robot self-localization has recently garnered interest as a highly-compressive domain-invariant approach for performing visual place recognition (VPR) across domains (e.g., time of day, weather, and season). However,…

Robotics · Computer Science 2021-09-08 Tanaka Kanji

Autonomous navigation emerges from both motion and local visual perception in real-world environments. However, most successful robotic motion estimation methods (e.g. VO, SLAM, SfM) and vision systems (e.g. CNN, visual place…

Robotics · Computer Science 2020-03-03 Marvin Chancán , Michael Milford