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On-orbit proximity operations in space rendezvous, docking and debris removal require precise and robust 6D pose estimation under a wide range of lighting conditions and against highly textured background, i.e., the Earth. This paper…

Computer Vision and Pattern Recognition · Computer Science 2019-08-30 Pedro F. Proenca , Yang Gao

Recently, template-based trackers have become the leading tracking algorithms with promising performance in terms of efficiency and accuracy. However, the correlation operation between query feature and the given template only exploits…

Computer Vision and Pattern Recognition · Computer Science 2021-11-24 Pengfei Zhu , Hongtao Yu , Kaihua Zhang , Yu Wang , Shuai Zhao , Lei Wang , Tianzhu Zhang , Qinghua Hu

Significant progress has been made in semi-supervised hyperspectral image (HSI) classification regarding feature extraction and classification performance. However, due to high annotation costs and limited sample availability,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Yunfei Qiu , Qiqiong Ma , Tianhua Lv , Li Fang , Shudong Zhou , Wei Yao

This paper presents a comprehensive study on the 3D positioning capabilities in distributed multiple-input multiple-output (MIMO) systems. Unlike previous studies that mainly rely on idealized isotropic antenna models, we adopt a…

Signal Processing · Electrical Eng. & Systems 2025-11-24 Yingjie Xu , Xuesong Cai , Ali Al-Ameri , Sara Willhammar , Fredrik Tufvesson

Optimization-based solvers play a central role in a wide range of signal processing and communication tasks. However, their applicability in latency-sensitive systems is limited by the sequential nature of iterative methods and the high…

Signal Processing · Electrical Eng. & Systems 2026-03-12 Dvir Avrahami , Amit Milstein , Caroline Chaux , Tirza Routtenberg , Nir Shlezinger

The existing human pose estimation methods are confronted with inaccurate long-distance regression or high computational cost due to the complex learning objectives. This work proposes a novel deep learning framework for human pose…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 ZiFan Chen , Xin Qin , Chao Yang , Li Zhang

Fingerprint-based localization improves the positioning performance in challenging, non-line-of-sight (NLoS) dominated indoor environments. However, fingerprinting models require an expensive life-cycle management including recording and…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Maximilian Stahlke , George Yammine , Tobias Feigl , Bjoern M. Eskofier , Christopher Mutschler

Global navigation satellite systems (GNSS) face significant challenges in urban and sub-urban areas due to non-line-of-sight (NLOS) propagation, multipath effects, and low received power levels, resulting in highly non-linear and…

Machine Learning · Computer Science 2025-04-22 M. Humayun Kabir , Md. Ali Hasan , Md. Shafiqul Islam , Kyeongjun Ko , Wonjae Shin

We present a neural network for mitigating biased errors in pseudoranges to improve localization performance with data collected from mobile phones. A satellite-wise Multilayer Perceptron (MLP) is designed to regress the pseudorange bias…

Machine Learning · Computer Science 2023-12-25 Xu Weng , Keck Voon Ling , Haochen Liu

The location fingerprinting method, which typically utilizes supervised learning, has been widely adopted as a viable solution for the indoor positioning problem. Many indoor positioning datasets are imbalanced. Models trained on imbalanced…

Signal Processing · Electrical Eng. & Systems 2021-09-01 Fahad Alhomayani , Mohammad H. Mahoor

With vast mmWave spectrum and narrow beam antenna technology, precise position location is now possible in 5G and future mobile communication systems. In this article, we describe how centimeterlevel localization accuracy can be achieved,…

Information Theory · Computer Science 2021-02-25 Ojas Kanhere , Theodore S. Rappaport

Deep learning has been extensively used in wireless communication problems, including channel estimation. Although several data-driven approaches exist, a fair and realistic comparison between them is difficult due to inconsistencies in the…

Artificial Intelligence · Computer Science 2023-11-14 Amal Feriani , Di Wu , Steve Liu , Greg Dudek

This paper provides an initial investigation on the application of convolutional neural networks (CNNs) for fingerprint-based positioning using measured massive MIMO channels. When represented in appropriate domains, massive MIMO channels…

Machine Learning · Statistics 2017-08-22 Joao Vieira , Erik Leitinger , Muris Sarajlic , Xuhong Li , Fredrik Tufvesson

The deployment of federated learning in a wireless network, called federated edge learning (FEEL), exploits low-latency access to distributed mobile data to efficiently train an AI model while preserving data privacy. In this work, we study…

Information Theory · Computer Science 2021-03-11 Zhenyi Lin , Xiaoyang Li , Vincent K. N. Lau , Yi Gong , Kaibin Huang

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,…

Robotics · Computer Science 2024-01-03 Christopher J. Holder , Muhammad Shafique

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…

Machine Learning · Computer Science 2025-01-20 Joseanne Viana , Boris Galkin , Lester Ho , Holger Claussen

Radio based positioning of a user equipment (UE) based on deep learning (DL) methods using channel state information (CSI) fingerprints have shown promising results. DL models are able to capture complex properties embedded in the CSI about…

Signal Processing · Electrical Eng. & Systems 2022-10-27 Anastasios Foliadis , Mario H. Castañeda Garcia , Richard A. Stirling-Gallacher , Reiner S. Thomä

Lane detection plays a crucial role in autonomous driving by providing vital data to ensure safe navigation. Modern algorithms rely on anchor-based detectors, which are then followed by a label-assignment process to categorize training…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Sapir Kontente , Roy Orfaig , Ben-Zion Bobrovsky

In this paper, we address the problem of global-scale image geolocation, proposing a mixed classification-retrieval scheme. Unlike other methods that strictly tackle the problem as a classification or retrieval task, we combine the two…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Giorgos Kordopatis-Zilos , Panagiotis Galopoulos , Symeon Papadopoulos , Ioannis Kompatsiaris

Localization technology is important for the development of indoor location-based services (LBS). Global Positioning System (GPS) becomes invalid in indoor environments due to the non-line-of-sight issue, so it is urgent to develop a…

Machine Learning · Computer Science 2017-11-09 Chenxiao Zhu , Lingqing Xu , Xiao-Yang Liu , Feng Qian
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