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Indoor localization is a supporting technology for a broadening range of pervasive wireless applications. One promis- ing approach is to locate users with radio frequency fingerprints. However, its wide adoption in real-world systems is…

Information Theory · Computer Science 2017-08-04 Xiao-Yang Liu , Shuchin Aeron , Vaneet Aggarwal , Xiaodong Wang , Min-You Wu

The rapid growth of the Internet of Things fosters collaboration among connected devices for tasks like indoor localization. However, existing indoor localization solutions struggle with dynamic and harsh conditions, requiring extensive…

Signal Processing · Electrical Eng. & Systems 2024-05-21 Yaya Etiabi , Wafa Njima , El Mehdi Amhoud

To promote the practicality of deep learning-based localization, existing studies aim to address the issue of scenario dependence through meta-learning. However, these studies primarily focus on variations in environmental layouts while…

Machine Learning · Computer Science 2025-11-19 Qiqi Xiao , Ziqi Ye , Yinghui He , Jianwei Liu , Guanding Yu

LiDAR-camera fusion methods have shown impressive performance in 3D object detection. Recent advanced multi-modal methods mainly perform global fusion, where image features and point cloud features are fused across the whole scene. Such…

Computer Vision and Pattern Recognition · Computer Science 2023-03-15 Xin Li , Tao Ma , Yuenan Hou , Botian Shi , Yuchen Yang , Youquan Liu , Xingjiao Wu , Qin Chen , Yikang Li , Yu Qiao , Liang He

Complementary to the fine-grained channel state information (CSI) from the physical layer and coarse-grained received signal strength indicator (RSSI) measurements, the mid-grained spatial beam attributes (e.g., beam SNR) that are available…

Networking and Internet Architecture · Computer Science 2022-02-08 Jianyuan Yu , Pu , Wang , Toshiaki Koike-Akino , Ye Wang , Philip V. Orlik , R. Michael Buehrer

This paper proposes passive WiFi indoor localization. Instead of using WiFi signals received by mobile devices as fingerprints, we use signals received by routers to locate the mobile carrier. Consequently, software installation on the…

Signal Processing · Electrical Eng. & Systems 2025-11-04 Minh Tu Hoang , Brosnan Yuen , Kai Ren , Ahmed Elmoogy , Xiaodai Dong , Tao Lu , Hung Le Nguyen Robert Westendorp , Kishore Reddy Tarimala

WiFi-based indoor localization has received extensive attentions from both academia and industry. However, the overhead of constructing and maintaining the WiFi fingerprint map remains a bottleneck for the wide-deployment of WiFi-based…

Signal Processing · Electrical Eng. & Systems 2019-11-28 Shilong Dai , Liang He , Xuebo Zhang

The overarching goals in image-based localization are scale, robustness and speed. In recent years, approaches based on local features and sparse 3D point-cloud models have both dominated the benchmarks and seen successful realworld…

Computer Vision and Pattern Recognition · Computer Science 2019-07-02 Simon Lynen , Bernhard Zeisl , Dror Aiger , Michael Bosse , Joel Hesch , Marc Pollefeys , Roland Siegwart , Torsten Sattler

K-Neares Neighbors (KNN) and its variant weighted KNN (WKNN) have been explored for years in both academy and industry to provide stable and reliable performance in WiFi-based indoor positioning systems. Such algorithms estimate the…

Signal Processing · Electrical Eng. & Systems 2023-02-03 Yinhuan Dong , Francisco Zampella , Firas Alsehly

Indoor wireless ranging localization is a promising approach for low-power and high-accuracy localization of wearable devices. A primary challenge in this domain stems from non-line of sight propagation of radio waves. This study tackles a…

Robotics · Computer Science 2023-09-19 Fan Jiang , David Caruso , Ashutosh Dhekne , Qi Qu , Jakob Julian Engel , Jing Dong

Ultra-wideband (UWB) time-difference-of-arrival (TDOA)-based localization has emerged as a promising, low-cost, and scalable indoor localization solution, which is especially suited for multi-robot applications. However, there is a lack of…

Robotics · Computer Science 2024-02-06 Wenda Zhao , Abhishek Goudar , Xinyuan Qiao , Angela P. Schoellig

Current data-driven Wi-Fi-based indoor localization systems face three critical challenges: protecting user privacy, achieving accurate predictions in dynamic multipath environments, and generalizing across different deployments.…

Cryptography and Security · Computer Science 2025-12-23 Kanishka Roy , Tahsin Fuad Hasan , Chenfeng Wu , Eshwar Vangala , Roshan Ayyalasomayajula

This paper proposes a method for tight fusion of visual, depth and inertial data in order to extend robotic capabilities for navigation in GPS-denied, poorly illuminated, and texture-less environments. Visual and depth information are fused…

Robotics · Computer Science 2019-03-06 Shehryar Khattak , Christos Papachristos , Kostas Alexis

Image fusion seeks to integrate complementary information from multiple sources into a single, superior image. While traditional methods are fast, they lack adaptability and performance. Conversely, deep learning approaches achieve…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Ran Zhang , Xuanhua He , Liu Liu

The current fusion positioning systems are mainly based on filtering algorithms, such as Kalman filtering or particle filtering. However, the system complexity of practical application scenarios is often very high, such as noise modeling in…

Signal Processing · Electrical Eng. & Systems 2022-09-29 Luchi Hua , Jun Yang

In this work, we estimate the depth in which domestic waste are located in space from a mobile robot in outdoor scenarios. As we are doing this calculus on a broad range of space (0.3 - 6.0 m), we use RGB-D camera and LiDAR fusion. With…

Object detection is an essential task for autonomous robots operating in dynamic and changing environments. A robot should be able to detect objects in the presence of sensor noise that can be induced by changing lighting conditions for…

Robotics · Computer Science 2019-11-20 Oier Mees , Andreas Eitel , Wolfram Burgard

This paper presents the WiFi-Sensor-for-Robotics (WSR) toolbox, an open source C++ framework. It enables robots in a team to obtain relative bearing to each other, even in non-line-of-sight (NLOS) settings which is a very challenging…

Robotics · Computer Science 2021-11-16 Ninad Jadhav , Weiying Wang , Diana Zhang , Swarun Kumar , Stephanie Gil

The purpose of this study is to provide a detailed performance comparison of feature detector/descriptor methods, particularly when their various combinations are used for image-matching. The localization experiments of a mobile robot in an…

Computer Vision and Pattern Recognition · Computer Science 2017-10-18 Ertugrul Bayraktar , Pinar Boyraz

Visual localization for planar moving robot is important to various indoor service robotic applications. To handle the textureless areas and frequent human activities in indoor environments, a novel robust visual localization algorithm…

Robotics · Computer Science 2020-11-03 Yanmei Jiao , Lilu Liu , Bo Fu , Xiaqing Ding , Minhang Wang , Yue Wang , Rong Xiong