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Future planetary missions will rely on rovers that can autonomously explore and navigate in unstructured environments. An essential element is the ability to recognize places that were already visited or mapped. In this work, we leverage…

Conventional end-to-end autonomous driving methods often rely on explicit global scene representations, which typically consist of 3D object detection, online mapping, and motion prediction. In contrast, human drivers selectively attend to…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Ruiqi Song , Xianda Guo , Yanlun Peng , Qinggong Wei , Hangbin Wu , Long Chen

Measuring urban safety perception is an important and complex task that traditionally relies heavily on human resources. This process often involves extensive field surveys, manual data collection, and subjective assessments, which can be…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Jiaxin Zhang , Yunqin Li , Tomohiro Fukuda , Bowen Wang

Stop location detection, within human mobility studies, has an impacts in multiple fields including urban planning, transport network design, epidemiological modeling, and socio-economic segregation analysis. However, it remains a…

Machine Learning · Computer Science 2024-07-17 Margherita Bertè , Rashid Ibrahimli , Lars Koopmans , Pablo Valgañón , Nicola Zomer , Davide Colombi

Recent open-vocabulary robot mapping methods enrich dense geometric maps with pre-trained visual-language features, achieving a high level of detail and guiding robots to find objects specified by open-vocabulary language queries. While the…

Robotics · Computer Science 2026-03-04 Fujing Xie , Sören Schwertfeger , Hermann Blum

Street-level geolocalization from images is crucial for a wide range of essential applications and services, such as navigation, location-based recommendations, and urban planning. With the growing popularity of social media data and…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Yunus Serhat Bicakci , Joseph Shingleton , Anahid Basiri

Place recognition is the fundamental module that can assist Simultaneous Localization and Mapping (SLAM) in loop-closure detection and re-localization for long-term navigation. The place recognition community has made astonishing progress…

Semantic segmentation of outdoor street scenes plays a key role in applications such as autonomous driving, mobile robotics, and assistive technology for visually-impaired pedestrians. For these applications, accurately distinguishing…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Shreshth Rajan , Raymond Liu

Geometric navigation is nowadays a well-established field of robotics and the research focus is shifting towards higher-level scene understanding, such as Semantic Mapping. When a robot needs to interact with its environment, it must be…

Robotics · Computer Science 2023-11-23 Federico Rollo , Gennaro Raiola , Andrea Zunino , Nikolaos Tsagarakis , Arash Ajoudani

A detailed environment perception is a crucial component of automated vehicles. However, to deal with the amount of perceived information, we also require segmentation strategies. Based on a grid map environment representation, well-suited…

Computer Vision and Pattern Recognition · Computer Science 2018-12-06 Sascha Wirges , Tom Fischer , Jesus Balado Frias , Christoph Stiller

Image to point cloud global localization is crucial for robot navigation in GNSS-denied environments and has become increasingly important for multi-robot map fusion and urban asset management. The modality gap between images and point…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Yuhao Li , Jianping Li , Zhen Dong , Yuan Wang , Bisheng Yang

Accurate localization is fundamental to a variety of applications, such as navigation, robotics, autonomous driving, and Augmented Reality (AR). Different from incremental localization, global localization has no drift caused by error…

Robotics · Computer Science 2021-03-30 Kejie Qiu , Shenzhou Chen , Jiahui Zhang , Rui Huang , Le Cui , Siyu Zhu , Ping Tan

Image geolocation is a critical task in various image-understanding applications. However, existing methods often fail when analyzing challenging, in-the-wild images. Inspired by the exceptional background knowledge of multimodal language…

Computer Vision and Pattern Recognition · Computer Science 2024-06-03 Zhiqiang Wang , Dejia Xu , Rana Muhammad Shahroz Khan , Yanbin Lin , Zhiwen Fan , Xingquan Zhu

Precise, consistent, and reliable positioning is crucial for a multitude of uses. In order to achieve high precision global positioning services, multi-sensor fusion techniques, such as the Global Navigation Satellite System (GNSS)/Inertial…

Systems and Control · Electrical Eng. & Systems 2024-09-06 Bo Xu , Shoujian Zhang , Jingrong Wang , Jiancheng Li

Place recognition is an important task for robots and autonomous cars to localize themselves and close loops in pre-built maps. While single-modal sensor-based methods have shown satisfactory performance, cross-modal place recognition that…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Weidong Xie , Lun Luo , Nanfei Ye , Yi Ren , Shaoyi Du , Minhang Wang , Jintao Xu , Rui Ai , Weihao Gu , Xieyuanli Chen

Fusion-based place recognition is an emerging technique jointly utilizing multi-modal perception data, to recognize previously visited places in GPS-denied scenarios for robots and autonomous vehicles. Recent fusion-based place recognition…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 Jingyi Xu , Junyi Ma , Qi Wu , Zijie Zhou , Yue Wang , Xieyuanli Chen , Ling Pei

As autonomous cars are rolled out into new environments, their ability to solve the simultaneous localization and mapping (SLAM) problem becomes critical. In order to tackle this problem, autonomous vehicles rely on sensor suites that…

Robotics · Computer Science 2019-07-22 Anne Collin , Antonio Terán Espinoza

Perception systems of autonomous vehicles are susceptible to occlusion, especially when examined from a vehicle-centric perspective. Such occlusion can lead to overlooked object detections, e.g., larger vehicles such as trucks or buses may…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Xiaofei Zhang , Yining Li , Jinping Wang , Xiangyi Qin , Ying Shen , Zhengping Fan , Xiaojun Tan

Semantic segmentation of multi-modal remote sensing imagery plays a pivotal role in land use/land cover (LULC) mapping, environmental monitoring, and precision earth observation. Current multi-modal approaches mainly focus on integrating…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Jinkun Dai , Yuanxin Ye , Peng Tang , Tengfeng Tang , Xianping Ma , Jing Xiao , Mi Wang

This paper develops a real-time decentralized metric-semantic SLAM algorithm that enables a heterogeneous robot team to collaboratively construct object-based metric-semantic maps. The proposed framework integrates a data-driven front-end…