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Cross-view object Geo-localization aims to precisely pinpoint the same object across large-scale satellite imagery based on drone images. Due to significant differences in viewpoint and scale, coupled with complex background interference,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Fan Zhang , Haoyuan Ren , Fei Ma , Qiang Yin , Yongsheng Zhou

Very high-resolution (VHR) remote sensing (RS) scene classification is a challenging task due to the higher inter-class similarity and intra-class variability problems. Recently, the existing deep learning (DL)-based methods have shown…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Chiranjibi Sitaula , Sumesh KC , Jagannath Aryal

GNSS is unreliable, inaccurate, and insufficient in many real-time autonomous field applications. In this work, we present a GNSS-free global localization solution that contains a method of registering imaging radar on the ground with…

Robotics · Computer Science 2025-04-23 Blerim Abdullai , Tony Wang , Xinyuan Qiao , Florian Shkurti , Timothy D. Barfoot

Multi-source image registration is challenging due to intensity, rotation, and scale differences among the images. Considering the characteristics and differences of multi-source remote sensing images, a feature-based registration algorithm…

Image and Video Processing · Electrical Eng. & Systems 2022-10-05 Chenzhong Gao , Wei Li , Ran Tao , Qian Du

This paper proposes a fine-grained self-localization method for outdoor robotics that utilizes a flexible number of onboard cameras and readily accessible satellite images. The proposed method addresses limitations in existing cross-view…

Computer Vision and Pattern Recognition · Computer Science 2023-08-17 Shan Wang , Yanhao Zhang , Akhil Perincherry , Ankit Vora , Hongdong Li

Cross-view geo-localization plays a critical role in Unmanned Aerial Vehicle (UAV) localization and navigation. However, significant challenges arise from the drastic viewpoint differences and appearance variations between images. Existing…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Hongyu Zhou , Yunzhou Zhang , Tingsong Huang , Fawei Ge , Man Qi , Xichen Zhang , Yizhong Zhang

Positioning accuracy is a critical requirement for vehicle-to-everything (V2X) use cases. Therefore, this paper derives the theoretical limits of estimation for the position and orientation of vehicles in a cooperative vehicle-to-vehicle…

Signal Processing · Electrical Eng. & Systems 2023-06-30 Joo-Hyun Jo , Jae-Nam Shim , Byoungnam , Kim , Chan-Byoung Chae , Dong Ku Kim

Cross-modal Geo-localization (CMGL) matches ground-level text descriptions with geo-tagged aerial imagery, which is crucial for pedestrian navigation and emergency response. However, existing researches are constrained by narrow geographic…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Yutong Hu , Jinhui Chen , Chaoqiang Xu , Yuan Kou , Sili Zhou , Shaocheng Yan , Pengcheng Shi , Qingwu Hu , Jiayuan Li

Although a wide variety of deep neural networks for robust Visual Odometry (VO) can be found in the literature, they are still unable to solve the drift problem in long-term robot navigation. Thus, this paper aims to propose novel deep…

Computer Vision and Pattern Recognition · Computer Science 2019-06-25 Yimin Lin , Zhaoxiang Liu , Jianfeng Huang , Chaopeng Wang , Guoguang Du , Jinqiang Bai , Shiguo Lian , Bill Huang

Thermal cameras offer strong potential for robot perception under challenging illumination and weather conditions. However, thermal Simultaneous Localization and Mapping (SLAM) remains difficult due to unreliable feature extraction,…

Robotics · Computer Science 2026-02-25 Zeyu Jiang , Kuan Xu , Changhao Chen

Visual localization refers to the process of determining camera poses and orientation within a known scene representation. This task is often complicated by factors such as changes in illumination and variations in viewing angles. In this…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Zhongyan Niu , Zhen Tan , Jinpu Zhang , Xueliang Yang , Dewen Hu

The collaborative visual perception of multiple Unmanned Aerial Vehicles (UAVs) has increasingly become a research hotspot. Compared to a single UAV equipped with a short-baseline stereo camera, multi-UAV collaborative vision offers a wide…

Robotics · Computer Science 2024-12-12 Zhaoying Wang , Wei Dong

Visual-Inertial Odometry (VIO) is a staple for reliable state estimation on constrained and lightweight platforms due to its versatility and demonstrated performance. However, pertinent challenges regarding robust operation in dark,…

Robotics · Computer Science 2026-03-26 Morten Nissov , Mohit Singh , Kostas Alexis

Accurate camera pose estimation is a fundamental requirement for numerous applications, such as autonomous driving, mobile robotics, and augmented reality. In this work, we address the problem of estimating the global 6 DoF camera pose from…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Mohammad Altillawi

Cross-View Geo-Localization (CVGL) focuses on identifying correspondences between images captured from distinct perspectives of the same geographical location. However, existing CVGL approaches are typically restricted to a single view or…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Xudong Lu , Zhi Zheng , Yi Wan , Yongxiang Yao , Annan Wang , Renrui Zhang , Panwang Xia , Qiong Wu , Qingyun Li , Weifeng Lin , Xiangyu Zhao , Peifeng Ma , Xue Yang , Hongsheng Li

Accurate localization in Orthogonal Frequency Division Multiplexing (OFDM)-based massive Multiple-Input Multiple-Output (MIMO) systems depends critically on phase coherence across subcarriers and antennas. However, practical systems suffer…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Qing Zhang , Adham Sakhnini , Robbert Beerten , Haoqiu Xiong , Zhuangzhuang Cui , Yang Miao , Sofie Pollin

We propose the MAC-VO, a novel learning-based stereo VO that leverages the learned metrics-aware matching uncertainty for dual purposes: selecting keypoint and weighing the residual in pose graph optimization. Compared to traditional…

Robotics · Computer Science 2025-03-13 Yuheng Qiu , Yutian Chen , Zihao Zhang , Wenshan Wang , Sebastian Scherer

Worldwide image geo-localization aims to infer the geographic location of an image captured anywhere on Earth, spanning street, city, regional, national, and continental scales. Existing methods rely on visual features that are sensitive to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-29 Junchao Cui , Wenqi Shi , Shaoyong Du , Hang He , Xuanzi Ma , Hao Tang , Xiangyang Luo

In this work, we propose a simultaneous localization and mapping (SLAM) system using a monocular camera and Ultra-wideband (UWB) sensors. Our system, referred to as VRSLAM, is a multi-stage framework that leverages the strengths and…

Robotics · Computer Science 2023-03-21 Thien Hoang Nguyen , Shenghai Yuan , Lihua Xie

Cross-view image matching for geo-localisation is a challenging problem due to the significant visual difference between aerial and ground-level viewpoints. The method provides localisation capabilities from geo-referenced images,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-25 Tavis Shore , Simon Hadfield , Oscar Mendez