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Monocular depth estimation from RGB images plays a pivotal role in 3D vision. However, its accuracy can deteriorate in challenging environments such as nighttime or adverse weather conditions. While long-wave infrared cameras offer stable…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Jialei Xu , Xianming Liu , Junjun Jiang , Kui Jiang , Rui Li , Kai Cheng , Xiangyang Ji

Recent years have seen a significant increase in demand for robotic solutions in unstructured natural environments, alongside growing interest in bridging 2D and 3D scene understanding. However, existing robotics datasets are predominantly…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Joshua Knights , Joseph Reid , Kaushik Roy , David Hall , Mark Cox , Peyman Moghadam

Cross-view matching refers to the problem of finding the closest match for a given query ground view image to one from a database of aerial images. If the aerial images are geotagged, then the closest matching aerial image can be used to…

Robotics · Computer Science 2020-11-17 Deeksha Dixit , Surabhi Verma , Pratap Tokekar

Lidar technology has evolved significantly over the last decade, with higher resolution, better accuracy, and lower cost devices available today. In addition, new scanning modalities and novel sensor technologies have emerged in recent…

Robotics · Computer Science 2022-03-08 Qingqing Li , Xianjia Yu , Jorge Peña Queralta , Tomi Westerlund

The success of re-localisation has crucial implications for the practical deployment of robots operating within a prior map or relative to one another in real-world scenarios. Using single-modality, place recognition and localisation can be…

Robotics · Computer Science 2023-07-27 Milad Ramezani , Ethan Griffiths , Maryam Haghighat , Alex Pitt , Peyman Moghadam

Balancing cost and performance is crucial when choosing high- versus low-resolution point-cloud roadside sensors. For example, LiDAR delivers dense point cloud, while 4D millimeter-wave radar, though spatially sparser, embeds velocity cues…

Robotics · Computer Science 2025-05-06 Shaozu Ding , Yihong Tang , Marco De Vincenzi , Dajiang Suo

Advances in sensing and learning algorithms have led to increasingly mature solutions for human detection by robots, particularly in selected use-cases such as pedestrian detection for self-driving cars or close-range person detection in…

Robotics · Computer Science 2021-08-04 Timm Linder , Narunas Vaskevicius , Robert Schirmer , Kai O. Arras

Accurate visual localization in dense urban environments poses a fundamental task in photogrammetry, geospatial information science, and robotics. While imagery is a low-cost and widely accessible sensing modality, its effectiveness on…

Robotics · Computer Science 2025-09-10 Yandi Yang , Jianping Li , Youqi Liao , Yuhao Li , Yizhe Zhang , Zhen Dong , Bisheng Yang , Naser El-Sheimy

Determining the precise geographic location of an image at a global scale remains an unsolved challenge. Standard image retrieval techniques are inefficient due to the sheer volume of images (>100M) and fail when coverage is insufficient.…

Computer Vision and Pattern Recognition · Computer Science 2025-10-31 Philipp Lindenberger , Paul-Edouard Sarlin , Jan Hosang , Matteo Balice , Marc Pollefeys , Simon Lynen , Eduard Trulls

In this work, we investigate various methods to deal with semantic labeling of very high resolution multi-modal remote sensing data. Especially, we study how deep fully convolutional networks can be adapted to deal with multi-modal and…

Neural and Evolutionary Computing · Computer Science 2017-11-27 Nicolas Audebert , Bertrand Le Saux , Sébastien Lefèvre

Multi-modal cross-view place recognition remains a fundamental challenge in computer vision and robotics due to the severe viewpoint, modality, and spatial-structure discrepancies between ground observations and aerial references. To…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Zhengyi Xu , Yuhang Ming , Zhihao Zhan , Hanyu Zhu , Javier Civera , Wanzeng Kong

LiDAR has become a standard sensor for autonomous driving applications as they provide highly precise 3D point clouds. LiDAR is also robust for low-light scenarios at night-time or due to shadows where the performance of cameras is…

Computer Vision and Pattern Recognition · Computer Science 2019-07-18 Khaled El Madawy , Hazem Rashed , Ahmad El Sallab , Omar Nasr , Hanan Kamel , Senthil Yogamani

Multimodal remote sensing image (MRSI) matching is pivotal for cross-modal fusion, localization, and object detection, but it faces severe challenges due to geometric, radiometric, and viewpoint discrepancies across imaging modalities.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Peihao Wu , Yongxiang Yao , Wenfei Zhang , Dong Wei , Yi Wan , Yansheng Li , Yongjun Zhang

LiDAR-based place recognition serves as a crucial enabler for long-term autonomy in robotics and autonomous driving systems. Yet, prevailing methodologies relying on handcrafted feature extraction face dual challenges: (1) Inconsistent…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Xiaohui Jiang , Haijiang Zhu , Chade Li , Fulin Tang , Ning An

We propose DeepFusion, a modular multi-modal architecture to fuse lidars, cameras and radars in different combinations for 3D object detection. Specialized feature extractors take advantage of each modality and can be exchanged easily,…

Computer Vision and Pattern Recognition · Computer Science 2022-09-28 Florian Drews , Di Feng , Florian Faion , Lars Rosenbaum , Michael Ulrich , Claudius Gläser

Infrared-visible (IR-VIS) feature matching plays an essential role in cross-modality visual localization, navigation and perception. Along with the rapid development of deep learning techniques, a number of representative image matching…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Liangzheng Sun , Mengfan He , Xingyu Shao , Binbin Li , Zhiqiang Yan , Chunyu Li , Ziyang Meng , Fei Xing

Developments in three-dimensional real worlds promote the integration of geoinformation and building information models (BIM) known as GeoBIM in urban construction. Light detection and ranging (LiDAR) integrated with global navigation…

Computer Vision and Pattern Recognition · Computer Science 2023-05-23 Jie Shao , Wei Yao , Puzuo Wang , Zhiyi He , Lei Luo

Object detection models commonly deployed on uncrewed aerial systems (UAS) focus on identifying objects in the visible spectrum using Red-Green-Blue (RGB) imagery. However, there is growing interest in fusing RGB with thermal long wave…

Computer Vision and Pattern Recognition · Computer Science 2022-12-29 James Gallagher , Edward Oughton

Visual localization is to estimate the 6-DOF camera pose of a query image in a 3D reference map. We extract keypoints from the reference image and generate a 3D reference map with 3D reconstruction of the keypoints in advance. We emphasize…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Masahiko Tsuji , Hitoshi Niigaki , Ryuichi Tanida

Place recognition is one of the most crucial modules for autonomous vehicles to identify places that were previously visited in GPS-invalid environments. Sensor fusion is considered an effective method to overcome the weaknesses of…

Computer Vision and Pattern Recognition · Computer Science 2024-01-02 Zijie Zhou , Jingyi Xu , Guangming Xiong , Junyi Ma