中文
相关论文

相关论文: High-Efficiency Urban 3D Radio Map Estimation Base…

200 篇论文

Environment mapping is an essential prerequisite for mobile robots to perform different tasks such as navigation and mission planning. With the availability of low-cost 2D LiDARs, there are increasing applications of such 2D LiDARs in…

机器人学 · 计算机科学 2021-06-08 Ran Liu , Yongping He , Chau Yuen , Billy Pik Lik Lau , Rashid Ali , Wenpeng Fu , Zhiqiang Cao

This paper addresses the critical environmental challenge of estimating ambient Nitrogen Dioxide (NO$_2$) concentrations, a key issue in public health and environmental policy. Existing methods for satellite-based air pollution estimation…

计算机视觉与模式识别 · 计算机科学 2025-04-25 Ruben Gonzalez Avilés , Linus Scheibenreif , Damian Borth

This paper addresses the problem of estimating sparse channels in massive MIMO-OFDM systems. Most wireless channels are sparse in nature with large delay spread. In addition, these channels as observed by multiple antennas in a neighborhood…

应用统计 · 统计学 2015-06-22 Mudassir Masood , Laila H. Afify , Tareq Y. Al-Naffouri

Unmanned aerial vehicles (UAVs) can be critical for time-sensitive data collection missions, yet existing research often relies on simulations that fail to capture real-world complexities. Many studies assume ideal wireless conditions or…

系统与控制 · 电气工程与系统科学 2026-01-12 Md Sharif Hossen , Anil Gurses , Ozgur Ozdemir , Mihail Sichitiu , Ismail Guvenc

Sparse representation of 3D images is considered within the context of data reduction. The goal is to produce high quality approximations of 3D images using fewer elementary components than the number of intensity points in the 3D array.…

图像与视频处理 · 电气工程与系统科学 2019-06-12 Laura Rebollo-Neira , Daniel Whitehouse

We consider the problem of recovering two-dimensional (2-D) block-sparse signals with \emph{unknown} cluster patterns. Two-dimensional block-sparse patterns arise naturally in many practical applications such as foreground detection and…

信息论 · 计算机科学 2016-05-25 Jun Fang , Lizao Zhang , Hongbin Li

Unified 2D and 3D radio map construction supports network planning, wireless digital twins, and unmanned aerial vehicle (UAV) applications. In urban environments, blockage, reflection, and diffraction make accurate construction expensive…

信号处理 · 电气工程与系统科学 2026-04-28 Weiming Huang , Hao Sun , Junting Chen

This paper presents a new Bayesian spectral unmixing algorithm to analyse remote scenes sensed via sparse multispectral Lidar measurements. To a first approximation, in the presence of a target, each Lidar waveform consists of a main peak,…

Target search with unmanned aerial vehicles (UAVs) is relevant problem to many scenarios, e.g., search and rescue (SaR). However, a key challenge is planning paths for maximal search efficiency given flight time constraints. To address…

机器人学 · 计算机科学 2019-02-28 Ajith Anil Meera , Marija Popovic , Alexander Millane , Roland Siegwart

Autonomous Micro Aerial Vehicles (MAVs) gained tremendous attention in recent years. Autonomous flight in indoor requires a dense depth map for navigable space detection which is the fundamental component for autonomous navigation. In this…

计算机视觉与模式识别 · 计算机科学 2019-04-26 Arindam Saha , Soumyadip Maity , Brojeshwar Bhowmick

An algorithm for 3D terrain-following area coverage path planning is presented. Multiple adjacent paths are generated that are (i) locally apart from each other by a distance equal to the working width of a machinery, while (ii)…

机器人学 · 计算机科学 2026-03-24 Mogens Plessen

SAR (Synthetic Aperture Radar) tomography reconstructs 3-D volumes from stacks of SAR images. High-resolution satellites such as TerraSAR-X provide images that can be combined to produce 3-D models. In urban areas, sparsity priors are…

计算机视觉与模式识别 · 计算机科学 2021-03-15 Clément Rambour , Loïc Denis , Florence Tupin , Hélène Oriot , Yue Huang , Laurent Ferro-Famil

Unmanned Aerial Vehicles (UAVs) equipped with high-resolution sensors enable extensive data collection from previously inaccessible areas at a remarkable spatio-temporal scale, promising to revolutionize fields such as precision agriculture…

机器人学 · 计算机科学 2024-07-19 Harnaik Dhami

Magnetic field inhomogeneity estimation is important in some types of magnetic resonance imaging (MRI), including field-corrected reconstruction for fast MRI with long readout times, and chemical shift based water-fat imaging. Regularized…

图像与视频处理 · 电气工程与系统科学 2020-10-13 Claire Yilin Lin , Jeffrey A. Fessler

Robust and accurate, map-based localization is crucial for autonomous mobile systems. In this paper, we exploit range images generated from 3D LiDAR scans to address the problem of localizing mobile robots or autonomous cars in a map of a…

机器人学 · 计算机科学 2022-04-26 Xieyuanli Chen , Ignacio Vizzo , Thomas Läbe , Jens Behley , Cyrill Stachniss

Unmanned Aerial Vehicles (UAVs) are increasingly essential in various fields such as surveillance, reconnaissance, and telecommunications. This study aims to develop a learning algorithm for the path planning of UAV wireless communication…

机器学习 · 计算机科学 2025-01-20 Joseanne Viana , Boris Galkin , Lester Ho , Holger Claussen

In this paper, we study an unmanned aerial vehicle(UAV)-enabled wireless sensor network, where a UAV is dispatched to collect the sensed data from distributed sensor nodes (SNs) for estimating an unknown parameter. It is revealed that in…

信息论 · 计算机科学 2018-05-14 Cheng Zhan , Yong Zeng , Rui Zhang

We present a stereo-based dense mapping algorithm for large-scale dynamic urban environments. In contrast to other existing methods, we simultaneously reconstruct the static background, the moving objects, and the potentially moving but…

计算机视觉与模式识别 · 计算机科学 2019-05-09 Ioan Andrei Bârsan , Peidong Liu , Marc Pollefeys , Andreas Geiger

Deployment of unmanned aerial vehicles (UAVs) performing as flying aerial base stations (BSs) has a great potential of adaptively serving ground users during temporary events, such as major disasters and massive events. However, planning an…

网络与互联网体系结构 · 计算机科学 2020-02-14 Tatsuaki Kimura , Masaki Ogura

This paper aims to propose a three-dimensional (3D) point process that can be employed to generally deploy unmanned aerial vehicles (UAVs) in a large-scale cellular network and tractably analyze the fundamental network-wide performances of…

网络与互联网体系结构 · 计算机科学 2021-01-26 Chun-Hung Liu , Di-Chun Liang , Rung-Hung Gau