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Visual Place Recognition has been the subject of many endeavours utilizing different ensemble approaches to improve VPR performance. Ideas like multi-process fusion, Fly-Inspired Voting Units, SwitchHit or Switch-Fuse involve combining…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Maria Waheed , Michael Milford , Xiaojun Zhai , Maria Fasli , Klaus McDonald-Maier , Shoaib Ehsan

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 2023-03-28 Bruno Arcanjo , Bruno Ferrarini , Michael Milford , Klaus D. McDonald-Maier , Shoaib Ehsan

Visual place recognition (VPR), a fundamental task in computer vision and robotics, is the problem of identifying a place mainly based on visual information. Viewpoint and appearance changes, such as due to weather and seasonal variations,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-02 Maria Waheed , Michael Milford , Klaus McDonald-Maier , Shoaib Ehsan

Compared to conventional cameras, event cameras provide a high dynamic range and low latency, offering greater robustness to rapid motion and challenging lighting conditions. Although the potential of event cameras for visual place…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Therese Joseph , Tobias Fischer , Michael Milford

Visual Place Recognition (VPR) in areas with similar scenes such as urban or indoor scenarios is a major challenge. Existing VPR methods using global descriptors have difficulty capturing local specific regions (LSR) in the scene and are…

Computer Vision and Pattern Recognition · Computer Science 2022-02-14 Yingfeng Cai , Junqiao Zhao , Jiafeng Cui , Fenglin Zhang , Chen Ye , Tiantian Feng

Visual localization is the task of estimating camera pose in a known scene, which is an essential problem in robotics and computer vision. However, long-term visual localization is still a challenge due to the environmental appearance…

Robotics · Computer Science 2022-12-02 Yuxuan Chen , Timothy D. Barfoot

Visual place recognition (VPR) is a robot's ability to determine whether a place was visited before using visual data. While conventional hand-crafted methods for VPR fail under extreme environmental appearance changes, those based on…

Computer Vision and Pattern Recognition · Computer Science 2022-03-07 Bruno Ferrarini , Michael Milford , Klaus D. McDonald-Maier , Shoaib Ehsan

Visual Place Recognition (VPR) is vital for robot localization. To date, the most performant VPR approaches are environment- and task-specific: while they exhibit strong performance in structured environments (predominantly urban driving),…

Computer Vision and Pattern Recognition · Computer Science 2023-11-30 Nikhil Keetha , Avneesh Mishra , Jay Karhade , Krishna Murthy Jatavallabhula , Sebastian Scherer , Madhava Krishna , Sourav Garg

Visual place recognition is a challenging task for applications such as autonomous driving navigation and mobile robot localization. Distracting elements presenting in complex scenes often lead to deviations in the perception of visual…

Computer Vision and Pattern Recognition · Computer Science 2022-04-14 Ruotong Wang , Yanqing Shen , Weiliang Zuo , Sanping Zhou , Nanning Zheng

Mesh-based scene representation offers a promising direction for simplifying large-scale hierarchical visual localization pipelines, combining a visual place recognition step based on global features (retrieval) and a visual localization…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Gabriele Berton , Lorenz Junglas , Riccardo Zaccone , Thomas Pollok , Barbara Caputo , Carlo Masone

Robust visual place recognition (VPR) requires scene representations that are invariant to various environmental challenges such as seasonal changes and variations due to ambient lighting conditions during day and night. Moreover, a…

Computer Vision and Pattern Recognition · Computer Science 2017-09-26 Unnat Jain , Vinay P. Namboodiri , Gaurav Pandey

This paper addresses Visual Place Recognition (VPR), which is essential for the safe navigation of mobile robots. The solution we propose employs panoramic images and deep learning models, which are fine-tuned with triplet loss functions…

Robotics · Computer Science 2025-10-03 Marcos Alfaro , Juan José Cabrera , María Flores , Óscar Reinoso , Luis Payá

Visual Place Recognition (VPR) in long-term deployment requires reasoning beyond pixel similarity: systems must make transparent, interpretable decisions that remain robust under lighting, weather and seasonal change. We present Text2Graph…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Saeideh Yousefzadeh , Hamidreza Pourreza

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

Visual place recognition (VPR) enables autonomous robots to identify previously visited locations, which contributes to tasks like simultaneous localization and mapping (SLAM). VPR faces challenges such as accurate image neighbor retrieval…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Taiyi Pan , Junyang He , Chao Chen , Yiming Li , Chen Feng

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

Visual Place Recognition (VPR) is the task of retrieving database images similar to a query photo by comparing it to a large database of known images. In real-world applications, extreme illumination changes caused by query images taken at…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Bingxi Liu , Yujie Fu , Feng Lu , Jinqiang Cui , Yihong Wu , Hong Zhang

Event cameras are ideal for visual place recognition (VPR) in challenging environments due to their high temporal resolution and high dynamic range. However, existing methods convert sparse events into dense frame-like representations for…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Zuntao Liu , Yaohui Li , Chenming Hu , Delei Kong , Junjie Jiang , Zheng Fang

Visual place recognition (VPR) is a fundamental task of computer vision for visual localization. Existing methods are trained using image pairs that either depict the same place or not. Such a binary indication does not consider continuous…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Maria Leyva-Vallina , Nicola Strisciuglio , Nicolai Petkov

Visual Place Recognition (VPR) is a critical task for performing global re-localization in visual perception systems. It requires the ability to accurately recognize a previously visited location under variations such as illumination,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Oliver Grainge , Michael Milford , Indu Bodala , Sarvapali D. Ramchurn , Shoaib Ehsan