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This paper presents OpenREALM, a real-time mapping framework for Unmanned Aerial Vehicles (UAVs). A camera attached to the onboard computer of a moving UAV is utilized to acquire high resolution image mosaics of a targeted area of interest.…

Computer Vision and Pattern Recognition · Computer Science 2020-09-23 Alexander Kern , Markus Bobbe , Yogesh Khedar , Ulf Bestmann

Accurate perception of UAVs in complex low-altitude environments is critical for airspace security and related intelligent systems. Developing reliable solutions requires large-scale, accurately annotated, and multimodal data. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Longkun Zou , Jiale Wang , Rongqin Liang , Hai Wu , Ke Chen , Yaowei Wang

Landslide monitoring and simulation play an important role in urban safety assessment and disaster prevention. Existing landslide simulation pipelines typically rely on digital elevation model and mesh-based representations, which are…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Zhenyu Liang , Jack C. P. Cheng

Visual Simultaneous Localization and Mapping (v-SLAM) and navigation of multirotor Unmanned Aerial Vehicles (UAV) in an unknown environment have grown in popularity for both research and education. However, due to the complex hardware…

Robotics · Computer Science 2020-12-02 S. Chen , H. Chen , W. Zhou , C. -Y. Wen , B. Li

The main motivation of this work is to propose a simulation approach for a specific task within the Unmanned Aerial Vehicle (UAV) field, i.e., the visual detection and tracking of arbitrary moving objects. In particular, it is described…

Robotics · Computer Science 2021-03-11 Giuseppe Silano , Luigi Iannelli

In the existing methods, LiDAR odometry shows superior performance, but visual odometry is still widely used for its price advantage. Conventionally, the task of visual odometry mainly rely on the input of continuous images. However, it is…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Huiying Deng , Guangming Wang , Zhiheng Feng , Chaokang Jiang , Xinrui Wu , Yanzi Miao , Hesheng Wang

Synthesizing high-fidelity and controllable 4D LiDAR data is crucial for creating scalable simulation environments for autonomous driving. This task is inherently challenging due to the sensor's unique spherical geometry, the temporal…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Pei Liu , Songtao Wang , Lang Zhang , Xingyue Peng , Yuandong Lyu , Jiaxin Deng , Songxin Lu , Weiliang Ma , Xueyang Zhang , Yifei Zhan , XianPeng Lang , Jun Ma

LiDAR-based 3D sensors provide point clouds, a canonical 3D representation used in various scene understanding tasks. Modern LiDARs face key challenges in several real-world scenarios, such as long-distance or low-albedo objects, producing…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Bhavya Goyal , Felipe Gutierrez-Barragan , Wei Lin , Andreas Velten , Yin Li , Mohit Gupta

Advanced sensors are a key to enable self-driving cars technology. Laser scanner sensors (LiDAR, Light Detection And Ranging) became a fundamental choice due to its long-range and robustness to low light driving conditions. The problem of…

Image and Video Processing · Electrical Eng. & Systems 2019-07-19 Khaled Elmadawi , Moemen Abdelrazek , Mohamed Elsobky , Hesham M. Eraqi , Mohamed Zahran

Storing and transmitting LiDAR point cloud data is essential for many AV applications, such as training data collection, remote control, cloud services or SLAM. However, due to the sparsity and unordered structure of the data, it is…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Till Beemelmanns , Yuchen Tao , Bastian Lampe , Lennart Reiher , Raphael van Kempen , Timo Woopen , Lutz Eckstein

To realize low-latency spatial transmission system for immersive telepresence, there are two major problems: capturing dynamic 3D scene densely and processing them in real time. LiDAR sensors capture 3D in real time, but produce sparce…

Computer Vision and Pattern Recognition · Computer Science 2026-01-14 Kazuhiko Murasaki , Shunsuke Konagai , Masakatsu Aoki , Taiga Yoshida , Ryuichi Tanida

LiDAR sensors are an integral part of modern autonomous vehicles as they provide an accurate, high-resolution 3D representation of the vehicle's surroundings. However, it is computationally difficult to make use of the ever-increasing…

Computer Vision and Pattern Recognition · Computer Science 2023-05-16 Marc Uecker , Tobias Fleck , Marcel Pflugfelder , J. Marius Zöllner

LiDAR is an important method for autonomous driving systems to sense the environment. The point clouds obtained by LiDAR typically exhibit sparse and irregular distribution, thus posing great challenges to the detection of 3D objects,…

Computer Vision and Pattern Recognition · Computer Science 2020-10-28 Tai Wang , Xinge Zhu , Dahua Lin

LiDAR-based 3D object detectors often struggle to detect far-field objects due to the sparsity of point clouds at long ranges, which limits the availability of reliable geometric cues. To address this, prior approaches augment LiDAR data…

Computer Vision and Pattern Recognition · Computer Science 2026-02-09 Veerain Sood , Bnalin , Gaurav Pandey

We present a photo-realistic training and evaluation simulator (Sim4CV) with extensive applications across various fields of computer vision. Built on top of the Unreal Engine, the simulator integrates full featured physics based cars,…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Matthias Müller , Vincent Casser , Jean Lahoud , Neil Smith , Bernard Ghanem

Mapping the environment has been an important task for robot navigation and Simultaneous Localization And Mapping (SLAM). LIDAR provides a fast and accurate 3D point cloud map of the environment which helps in map building. However,…

Computer Vision and Pattern Recognition · Computer Science 2020-06-14 Aritra Mukherjee , Sourya Dipta Das , Jasorsi Ghosh , Ananda S. Chowdhury , Sanjoy Kumar Saha

Accurate pose estimation is fundamental for unmanned aerial vehicle (UAV) applications, where Visual-Inertial SLAM (VI-SLAM) provides a cost-effective solution for localization and mapping. However, existing VI-SLAM methods mainly rely on…

Robotics · Computer Science 2026-04-02 Yiyang Wu , Xiaohu Zhang , Yanjin Du , Tongsu Zhang , Chujun Li , Siyang Chen , Guoyi Zhang , Xiangpeng Xu

Autonomous vehicles rely heavily on sensors such as camera and LiDAR, which provide real-time information about their surroundings for the tasks of perception, planning and control. Typically a LiDAR can only provide sparse point cloud…

Image and Video Processing · Electrical Eng. & Systems 2020-07-07 Lin Bai , Yiming Zhao , Mahdi Elhousni , Xinming Huang

In recent years, Onboard Self Localization (OSL) methods based on cameras or Lidar have achieved many significant progresses. However, some issues such as estimation drift and feature-dependence still remain inherent limitations. On the…

Robotics · Computer Science 2020-10-26 Thien-Minh Nguyen , Shenghai Yuan , Muqing Cao , Yang Lyu , Thien Hoang Nguyen , Lihua Xie

Depth completion and object detection are two crucial tasks often used for aerial 3D mapping, path planning, and collision avoidance of Uncrewed Aerial Vehicles (UAVs). Common solutions include using measurements from a LiDAR sensor;…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Sara Hatami Gazani , Fardad Dadboud , Miodrag Bolic , Iraj Mantegh , Homayoun Najjaran