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The widespread usage of wireless local area networks and mobile devices has fostered the interest in localization systems for wireless environments. The majority of research in the context of wireless-based localization systems has focused…

网络与互联网体系结构 · 计算机科学 2009-08-07 Moustafa Seifeldin , Moustafa Youssef

We learn, in an unsupervised way, an embedding from sequences of radar images that is suitable for solving the place recognition problem with complex radar data. Our method is based on invariant instance feature learning but is tailored for…

计算机视觉与模式识别 · 计算机科学 2021-10-07 Matthew Gadd , Daniele De Martini , Paul Newman

For autonomous navigation, accurate localization with respect to a map is needed. In urban environments, infrastructure such as buildings or bridges cause major difficulties to Global Navigation Satellite Systems (GNSS) and, despite…

计算机视觉与模式识别 · 计算机科学 2024-12-16 Maxime Noizet , Philippe Xu , Philippe Bonnifait

In this paper, a compressed sensing (CS) based framework of multi-target cooperative visible light positioning (VLP) is formulated to realize simultaneous highaccuracy localization of multiple targets. The light emitting diodes (LEDs)…

信号处理 · 电气工程与系统科学 2023-03-07 Xianyao Wang , Sicong Liu

Heatmap regression has been used for landmark localization for quite a while now. Most of the methods use a very deep stack of bottleneck modules for heatmap classification stage, followed by heatmap regression to extract the keypoints. In…

计算机视觉与模式识别 · 计算机科学 2018-03-29 Amit Kumar , Rama Chellappa

In this paper, we present a novel and efficient architecture for addressing computer vision problems that use `Analysis by Synthesis'. Analysis by synthesis involves the minimization of the reconstruction error which is typically a…

计算机视觉与模式识别 · 计算机科学 2016-03-21 Julien Valentin , Angela Dai , Matthias Nießner , Pushmeet Kohli , Philip Torr , Shahram Izadi , Cem Keskin

Squared planar markers are a popular tool for fast, accurate and robust camera localization, but its use is frequently limited to a single marker, or at most, to a small set of them for which their relative pose is known beforehand. Mapping…

计算机视觉与模式识别 · 计算机科学 2017-01-26 Rafael Muñoz-Salinas , Manuel J. Marín-Jimenez , Enrique Yeguas-Bolivar , Rafael Medina-Carnicer

In this paper we study the distance-based docking problem of unmanned aerial vehicles (UAVs) by using a single landmark placed at an arbitrarily unknown position. To solve the problem, we propose an integrated estimation-control scheme to…

系统与控制 · 计算机科学 2019-01-25 Thien-Minh Nguyen , Zhirong Qiu , Muqing Cao , Thien Hoang Nguyen , Lihua Xie

This paper introduces a novel feature detector based only on information embedded inside a CNN trained on standard tasks (e.g. classification). While previous works already show that the features of a trained CNN are suitable descriptors,…

计算机视觉与模式识别 · 计算机科学 2019-07-09 Assia Benbihi , Matthieu Geist , Cédric Pradalier

This work proposes a process for efficiently training a point-wise object detector that enables localizing objects and computing their 6D poses in cluttered and occluded scenes. Accurate pose estimation is typically a requirement for robust…

计算机视觉与模式识别 · 计算机科学 2019-02-22 Jean-Philippe Mercier , Chaitanya Mitash , Philippe Giguère , Abdeslam Boularias

An unknown-position sensor can be localized if there are three or more anchors making time-of-arrival (TOA) measurements of a signal from it. However, the location errors can be very large due to the fact that some of the measurements are…

信息论 · 计算机科学 2016-11-17 Hongyang Chen , Kenneth W. K. Lui , Zizhuo Wang , H. C. So , H. Vincent Poor

Global localisation from visual data is a challenging problem applicable to many robotics domains. Prior works have shown that neural networks can be trained to map images of an environment to absolute camera pose within that environment,…

机器人学 · 计算机科学 2024-01-03 Christopher J. Holder , Muhammad Shafique

Automotive self-localization is an essential task for any automated driving function. This means that the vehicle has to reliably know its position and orientation with an accuracy of a few centimeters and degrees, respectively. This paper…

机器人学 · 计算机科学 2024-08-13 Fabio Weishaupt , Julius F. Tilly , Nils Appenrodt , Pascal Fischer , Jürgen Dickmann , Dirk Heberling

This work describes the implementation of a simple and computationally efficient Intelligent Navigation System (INS) for autonomous systems used in areas where human access is impossible. The system uses Laser Range Finder (LRF) readings as…

Pan-tilt-zoom (PTZ) cameras are powerful to support object identification and recognition in far-field scenes. However, the effective use of PTZ cameras in real contexts is complicated by the fact that a continuous on-line camera…

计算机视觉与模式识别 · 计算机科学 2015-03-24 Giuseppe Lisanti , Iacopo Masi , Federico Pernici , Alberto Del Bimbo

Camera-based visible light positioning (VLP) is a promising technique for accurate and low-cost indoor camera pose estimation (CPE). To reduce the number of required light-emitting diodes (LEDs), advanced methods commonly exploit LED shape…

信号处理 · 电气工程与系统科学 2026-02-27 Wenxuan Pan , Yang Yang , Dong Wei , Zhiyu Zhu , Jintao Wang , Huan Wu , Yao Nie

Visual relocalization is crucial for autonomous visual localization and navigation of mobile robotics. Due to the improvement of CNN-based object detection algorithm, the robustness of visual relocalization is greatly enhanced especially in…

计算机视觉与模式识别 · 计算机科学 2024-02-13 Yifan Zhu , Lingjuan Miao , Haitao Wu , Zhiqiang Zhou , Weiyi Chen , Longwen Wu

In challenging environments where traditional sensing modalities struggle, in-air sonar offers resilience to optical interference. Placing a priori known landmarks in these environments can eliminate accumulated errors in autonomous mobile…

机器人学 · 计算机科学 2024-12-23 Wouter Jansen , Jan Steckel

Vision-based localization is a cost-effective and thus attractive solution for many intelligent mobile platforms. However, its accuracy and especially robustness still suffer from low illumination conditions, illumination changes, and…

机器人学 · 计算机科学 2024-01-17 Yi-Fan Zuo , Wanting Xu , Xia Wang , Yifu Wang , Laurent Kneip

This work addresses the challenge of developing a localization system for an uncrewed ground vehicle (UGV) operating autonomously in unstructured outdoor Global Navigation Satellite System (GNSS)-denied environments. The goal is to enable…

机器人学 · 计算机科学 2023-09-07 W. Jacob Wagner , Isaac Blankenau , Maribel DeLaTorre , Amartya Purushottam , Ahmet Soylemezoglu