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Position-aided beam selection methods have been shown to be an effective approach to achieve high beamforming gain while limiting the overhead and latency of initial access in millimeter wave (mmWave) communications. Most research in the…

Signal Processing · Electrical Eng. & Systems 2021-10-14 Sajad Rezaie , Elisabeth de Carvalho , Carles Navarro Manchón

This paper introduces a novel approach to the task of data association within the context of pedestrian tracking, by introducing a two-stage learning scheme to match pairs of detections. First, a Siamese convolutional neural network (CNN)…

Machine Learning · Computer Science 2016-08-05 Laura Leal-Taixé , Cristian Canton Ferrer , Konrad Schindler

The first step of a secure communication is authenticating legible users and detecting the malicious ones. In the last recent years, some promising schemes proposed using wireless medium network's features, in particular, channel state…

Networking and Internet Architecture · Computer Science 2018-12-18 Amirhossein Yazdani Abyaneh , Ali Hosein Gharari Foumani , Vahid Pourahmadi

We introduce a self-supervised framework for learning predictive and structured representations of wireless channels by modeling the temporal evolution of channel state information (CSI) in a compact latent space. Our method casts the…

Signal Processing · Electrical Eng. & Systems 2026-03-23 Salmane Naoumi , Mehdi Bennis , Marwa Chafii

Reaping the benefits of multi-antenna communication systems in frequency division duplex (FDD) requires channel state information (CSI) reporting from mobile users to the base station (BS). Over the last decades, the amount of CSI to be…

Information Theory · Computer Science 2025-01-06 Baptiste Chatelier , Vincent Corlay , Matthieu Crussière , Luc Le Magoarou

This paper proposes a new image-based localization framework that explicitly localizes the camera/robot by fusing Convolutional Neural Network (CNN) and sequential images' geometric constraints. The camera is localized using a single or few…

Computer Vision and Pattern Recognition · Computer Science 2022-01-06 Jingwei Song , Mitesh Patel , Maani Ghaffari

Deep neural networks have been investigated in learning latent representations of medical images, yet most of the studies limit their approach in a single supervised convolutional neural network (CNN), which usually rely heavily on a large…

Computer Vision and Pattern Recognition · Computer Science 2017-12-29 Yu-An Chung , Wei-Hung Weng

In this paper we aim to determine the location and orientation of a ground-level query image by matching to a reference database of overhead (e.g. satellite) images. For this task we collect a new dataset with one million pairs of street…

Computer Vision and Pattern Recognition · Computer Science 2017-03-24 Nam Vo , James Hays

Channel state information (CSI) is of pivotal importance as it enables wireless systems to adapt transmission parameters more accurately, thus improving the system's overall performance. However, it becomes challenging to acquire accurate…

Signal Processing · Electrical Eng. & Systems 2022-08-12 Muhammad Karam Shehzad , Luca Rose , Muhammad Furqan Azam , Mohamad Assaad

Learning a similarity metric has gained much attention recently, where the goal is to learn a function that maps input patterns to a target space while preserving the semantic distance in the input space. While most related work focused on…

Computer Vision and Pattern Recognition · Computer Science 2019-05-03 Guixiang Ma , Nesreen K. Ahmed , Ted Willke , Dipanjan Sengupta , Michael W. Cole , Nicholas B. Turk-Browne , Philip S. Yu

The current Siamese network based on region proposal network (RPN) has attracted great attention in visual tracking due to its excellent accuracy and high efficiency. However, the design of the RPN involves the selection of the number,…

Computer Vision and Pattern Recognition · Computer Science 2021-04-16 Kai Yang , Zhenyu He , Wenjie Pei , Zikun Zhou , Xin Li , Di Yuan , Haijun Zhang

In this study, we leveraged Channel State Information (CSI), commonly utilized in WLAN communication, as training data to develop and evaluate five distinct machine learning models for recognizing human postures: standing, sitting, and…

Signal Processing · Electrical Eng. & Systems 2024-09-13 Tomoya Tanaka , Ayumu Yabuki , Mizuki Funakoshi , Ryo Yonemoto

The performance of modern wireless communications systems depends critically on the quality of the available channel state information (CSI) at the transmitter and receiver. Several previous works have proposed concepts and algorithms that…

Machine Learning · Computer Science 2023-08-29 Oscar Stenhammar , Gabor Fodor , Carlo Fischione

The paper presents a novel Wi-Fi fingerprinting system that uses Channel State Information (CSI) data for fine-grained pedestrian localization. The proposed system exploits the frequency diversity and spatial diversity of the features…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Muhammad Emad-ud-din

Visual tracking is one of the most challenging computer vision problems. In order to achieve high performance visual tracking in various negative scenarios, a novel cascaded Siamese network is proposed and developed based on two different…

Computer Vision and Pattern Recognition · Computer Science 2019-05-09 Peng Gao , Yipeng Ma , Ruyue Yuan , Liyi Xiao , Fei Wang

Channel covariance matrix (CCM) is one critical parameter for designing the communications systems. In this paper, a novel framework of the deep learning (DL) based CCM estimation is proposed that exploits the perception of the transmission…

Signal Processing · Electrical Eng. & Systems 2023-04-19 Weihua Xu , Feifei Gao , Jianhua Zhang , Xiaoming Tao , Ahmed Alkhateeb

This paper presents Dense Siamese Network (DenseSiam), a simple unsupervised learning framework for dense prediction tasks. It learns visual representations by maximizing the similarity between two views of one image with two types of…

Computer Vision and Pattern Recognition · Computer Science 2022-08-11 Wenwei Zhang , Jiangmiao Pang , Kai Chen , Chen Change Loy

This paper presents three fully convolutional neural network architectures which perform change detection using a pair of coregistered images. Most notably, we propose two Siamese extensions of fully convolutional networks which use…

Computer Vision and Pattern Recognition · Computer Science 2018-10-22 Rodrigo Caye Daudt , Bertrand Le Saux , Alexandre Boulch

Natural language processing techniques, such as Word2Vec, have demonstrated exceptional capabilities in capturing semantic and syntactic relationships of text through vector embeddings. Inspired by this technique, we propose CSI2Vec, a…

Information Theory · Computer Science 2025-06-06 Victoria Palhares , Sueda Taner , Christoph Studer

The anatomical location of imaging features is of crucial importance for accurate diagnosis in many medical tasks. Convolutional neural networks (CNN) have had huge successes in computer vision, but they lack the natural ability to…

Computer Vision and Pattern Recognition · Computer Science 2016-11-01 Mohsen Ghafoorian , Nico Karssemeijer , Tom Heskes , Inge van Uden , Clara Sanchez , Geert Litjens , Frank-Erik de Leeuw , Bram van Ginneken , Elena Marchiori , Bram Platel