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Ensuring accurate localization of robots in environments without GPS capability is a challenging task. Visual Place Recognition (VPR) techniques can potentially achieve this goal, but existing RGB-based methods are sensitive to changes in…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Yujia Lin , Nicholas Evans

In this paper, we propose a new image-based visual place recognition (VPR) framework by exploiting the structural cues in bird's-eye view (BEV) from a single monocular camera. The motivation arises from two key observations about place…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Fudong Ge , Yiwei Zhang , Shuhan Shen , Yue Wang , Weiming Hu , Jin Gao

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

LiDAR-based Place Recognition (LPR) remains a critical task in Embodied Artificial Intelligence (AI) and Autonomous Driving, primarily addressing localization challenges in GPS-denied environments and supporting loop closure detection.…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Jintao Cheng , Jiehao Luo , Xieyuanli Chen , Jin Wu , Rui Fan , Xiaoyu Tang , Wei Zhang

Visual Place Recognition (VPR) is fundamental for the global re-localization of robots and devices, enabling them to recognize previously visited locations based on visual inputs. This capability is crucial for maintaining accurate mapping…

Computer Vision and Pattern Recognition · Computer Science 2024-09-13 Oliver Grainge , Michael Milford , Indu Bodala , Sarvapali D. Ramchurn , 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

Visual place recognition (VPR) capabilities enable autonomous robots to navigate complex environments by discovering the environment's topology based on visual input. Most research efforts focus on enhancing the accuracy and robustness of…

Robotics · Computer Science 2023-10-10 Yiming Li , Zonglin Lyu , Mingxuan Lu , Chao Chen , Michael Milford , Chen Feng

Visual Place Recognition (VPR) aims to estimate the location of an image by treating it as a retrieval problem. VPR uses a database of geo-tagged images and leverages deep neural networks to extract a global representation, called…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Mattia Dutto , Gabriele Berton , Debora Caldarola , Eros Fanì , Gabriele Trivigno , Carlo Masone

All-weather autonomy is critical for autonomous driving, which necessitates reliable localization across diverse scenarios. While LiDAR place recognition is widely deployed for this task, its performance degrades in adverse weather.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Zhangshuo Qi , Jingyi Xu , Luqi Cheng , Shichen Wen , Guangming Xiong

LiDAR-based place recognition (LPR) is a key component for autonomous driving, and its resilience to environmental corruption is critical for safety in high-stakes applications. While state-of-the-art (SOTA) LPR methods perform well in…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Wenqing Kuang , Xiongwei Zhao , Yehui Shen , Congcong Wen , Huimin Lu , Zongtan Zhou , Xieyuanli Chen

Point cloud-based large scale place recognition is an important but challenging task for many applications such as Simultaneous Localization and Mapping (SLAM). Taking the task as a point cloud retrieval problem, previous methods have made…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Zhaoxin Fan , Zhenbo Song , Wenping Zhang , Hongyan Liu , Jun He , Xiaoyong Du

Visual place recognition (VPR) plays a crucial role in robotic localization and navigation. The key challenge lies in constructing feature representations that are robust to environmental changes. Existing methods typically adopt…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Weiwei Wang , Meijia Wang , Haoyi Wang , Wenqiang Guo , Jiapan Guo , Changming Sun , Lingkun Ma , Weichuan Zhang

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

LiDAR place recognition (LPR) plays a vital role in autonomous navigation. However, existing LPR methods struggle to maintain robustness under adverse weather conditions such as rain, snow, and fog, where weather-induced noise and point…

Robotics · Computer Science 2025-06-23 Xiongwei Zhao , Xieyuanli Chen , Xu Zhu , Xingxiang Xie , Haojie Bai , Congcong Wen , Rundong Zhou , Qihao Sun

Recent studies show that the visual place recognition (VPR) method using pre-trained visual foundation models can achieve promising performance. In our previous work, we propose a novel method to realize seamless adaptation of foundation…

Computer Vision and Pattern Recognition · Computer Science 2025-11-10 Feng Lu , Tong Jin , Xiangyuan Lan , Lijun Zhang , Yunpeng Liu , Yaowei Wang , Chun Yuan

License plate recognition (LPR) is important for traffic law enforcement, crime investigation, and surveillance. However, license plate areas in dash cam images often suffer from low resolution, motion blur, and glare, which make accurate…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Kihyun Na , Junseok Oh , Youngkwan Cho , Bumjin Kim , Sungmin Cho , Jinyoung Choi , Injung Kim

Localization is paramount for autonomous robots. While camera and LiDAR-based approaches have been extensively investigated, they are affected by adverse illumination and weather conditions. Therefore, radar sensors have recently gained…

Robotics · Computer Science 2024-11-05 Abhijeet Nayak , Daniele Cattaneo , Abhinav Valada

Visual place recognition (VPR) is crucial for robots to identify previously visited locations, playing an important role in autonomous navigation in both indoor and outdoor environments. However, most existing VPR datasets are limited to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Yehui Shen , Lei Zhang , Qingqiu Li , Xiongwei Zhao , Yue Wang , Huimin Lu , Xieyuanli Chen

Visual Place Recognition (VPR) has been a subject of significant research over the last 15 to 20 years. VPR is a fundamental task for autonomous navigation as it enables self-localization within an environment. Although robots are often…

Computer Vision and Pattern Recognition · Computer Science 2021-09-24 Rose Power , Mubariz Zaffar , Bruno Ferrarini , Michael Milford , Klaus McDonald-Maier , Shoaib Ehsan

Place recognition is an important task within autonomous navigation, involving the re-identification of previously visited locations from an initial traverse. Unlike visual place recognition (VPR), LiDAR place recognition (LPR) is tolerant…

Robotics · Computer Science 2024-09-09 Therese Joseph , Tobias Fischer , Michael Milford