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WiFi sensing has emerged as a compelling contactless modality for human activity monitoring by capturing fine-grained variations in Channel State Information (CSI). Its ability to operate continuously and non-intrusively while preserving…

信号处理 · 电气工程与系统科学 2025-11-21 Guozhen Zhu , Yuqian Hu , Weihang Gao , Wei-Hsiang Wang , Beibei Wang , K. J. Ray Liu

The radar signal processing algorithm is one of the core components in through-wall radar human detection technology. Traditional algorithms (e.g., DFT and matched filtering) struggle to adaptively handle low signal-to-noise ratio echo…

信号处理 · 电气工程与系统科学 2024-03-26 Wei Wang , Naike Du , Yuchao Guo , Chao Sun , Jingyang Liu , Rencheng Song , Xiuzhu Ye

The phase of the channel state information (CSI) is underutilized as a source of information in wireless sensing due to its sensitivity to synchronization errors of the signal reception. A linear transformation of the phase is commonly…

信号处理 · 电气工程与系统科学 2023-10-16 Guillermo Diaz , Iker Sobron , Iñaki Eizmendi , Iratxe landa , Manuel Velez

Ultra-low latency, the hallmark of fifth-generation mobile communications (5G), imposes exacting timing demands on identification as well. Current cryptographic solutions introduce additional computational overhead, which results in…

密码学与安全 · 计算机科学 2025-11-13 Yingjie Sun , Guyue Li , Hongfu Chou , Aiqun Hu

Cloth-Changing Person Re-identification (CC-ReID) aims to solve the challenge of identifying individuals across different temporal-spatial scenarios, viewpoints, and clothing variations. This field is gaining increasing attention in big…

计算机视觉与模式识别 · 计算机科学 2025-03-04 Ruiqi He , Zihan Wang , Xiang Zhou

Remote sensing image change detection (RSCD) is crucial for monitoring dynamic surface changes, with applications ranging from environmental monitoring to disaster assessment. While traditional CNN-based methods have improved detection…

计算机视觉与模式识别 · 计算机科学 2024-10-17 Wenyu Liu , Jindong Li , Haoji Wang , Run Tan , Yali Fu , Qichuan Tian

Building a small-sized fast surveillance system model to fit on limited resource devices is a challenging, yet an important task. Convolutional Neural Networks (CNNs) have replaced traditional feature extraction and machine learning models…

计算机视觉与模式识别 · 计算机科学 2021-11-23 Ali Farouk Khalifa , Hesham N. Elmahdy , Eman Badr

This paper proposes a two-stream convolution network to extract spatial and temporal cues for video based person Re-Identification (ReID). A temporal stream in this network is constructed by inserting several Multi-scale 3D (M3D)…

计算机视觉与模式识别 · 计算机科学 2018-11-20 Jianing Li , Shiliang Zhang , Tiejun Huang

Person Re-identification (ReID) aims to retrieve the specific person across non-overlapping cameras, which greatly helps intelligent transportation systems. As we all know, Convolutional Neural Networks (CNNs) and Transformers have the…

计算机视觉与模式识别 · 计算机科学 2024-12-24 Yuhao Wang , Pingping Zhang , Xuehu Liu , Zhengzheng Tu , Huchuan Lu

Device-free human tracking is an essential ingredient for ubiquitous wireless sensing. Recent passive WiFi tracking systems face the challenges of inaccurate separation of dynamic human components and time-consuming estimation of…

网络与互联网体系结构 · 计算机科学 2021-09-14 Zhongqin Wang , J. Andrew Zhang , Min Xu , Y. Jay Guo

Person re-identification (PRe-ID) is a computer vision issue, that has been a fertile research area in the last few years. It aims to identify persons across different non-overlapping camera views. In this paper, We propose a novel PRe-ID…

计算机视觉与模式识别 · 计算机科学 2023-12-29 Akram Abderraouf Gharbi , Ammar Chouchane , Abdelmalik Ouamane

Extracting effective and discriminative features is very important for addressing the challenging person re-identification (re-ID) task. Prevailing deep convolutional neural networks (CNNs) usually use high-level features for identifying…

计算机视觉与模式识别 · 计算机科学 2021-06-08 Guoqing Zhang , Junchuan Yang , Yuhui Zheng , Yi Wu , Shengyong Chen

The prevention of falls is paramount in modern healthcare, particularly for the elderly, as falls can lead to severe injuries or even fatalities. Additionally, the growing incidence of falls among the elderly, coupled with the urgent need…

计算机视觉与模式识别 · 计算机科学 2024-08-23 Jungpil Shin , Abu Saleh Musa Miah , Rei Egawa1 , Koki Hirooka , Md. Al Mehedi Hasan , Yoichi Tomioka , Yong Seok Hwang

We present experimental results and theoretical methods for the precise determination of the presence and the number of persons in an observed area by using Wi-Fi signals. Our setup does not require active cooperation of persons present in…

信号处理 · 电气工程与系统科学 2025-02-12 Dario Jukić , Silvije Domazet , Ante Ivanko , David Raca , Siniša Nikolić , Marin Knežević , Filip Jović , Nenad Raca , Hrvoje Buljan

Human activity recognition (HAR) holds significant importance in smart homes, security, and healthcare. Existing systems face limitations because of the insufficient spatial diversity provided by a limited number of antennas. Furthermore,…

系统与控制 · 电气工程与系统科学 2024-10-04 Junshuo Liu , Yunlong Huang , Wei Yang , Zhe Li , Rujing Xiong , Tiebin Mi , Xin Shi , Robert C. Qiu

The past few years have witnessed the great potential of exploiting channel state information retrieved from commodity WiFi devices for respiration monitoring. However, existing approaches only work when the target is close to the WiFi…

信号处理 · 电气工程与系统科学 2019-08-13 Youwei Zeng , Dan Wu , Jie Xiong , Enze Yi , Ruiyang Gao , Daqing Zhang

This work investigates Distributed Detection (DD) in Wireless Sensor Networks (WSNs), where spatially distributed sensors transmit binary decisions over a shared flat-fading channel. To enhance fusion efficiency, a reconfigurable…

信号处理 · 电气工程与系统科学 2026-01-29 Domenico Ciuonzo , Alessio Zappone , Marco Di Renzo , Ciro D'Elia

Thanks to the ubiquitousness of Wi-Fi access points and devices, Wi-Fi sensing enables transformative applications in remote health care, security, and surveillance. Existing work has explored the usage of machine learning on channel state…

网络与互联网体系结构 · 计算机科学 2022-04-21 Niloofar Bahadori , Jonathan Ashdown , Francesco Restuccia

LIDAR point clouds and RGB-images are both extremely essential for 3D object detection. So many state-of-the-art 3D detection algorithms dedicate in fusing these two types of data effectively. However, their fusion methods based on Birds…

计算机视觉与模式识别 · 计算机科学 2019-12-03 Liang Xie , Chao Xiang , Zhengxu Yu , Guodong Xu , Zheng Yang , Deng Cai , Xiaofei He

As an important task in remote sensing image analysis, remote sensing change detection (RSCD) aims to identify changes of interest in a region from spatially co-registered multi-temporal remote sensing images, so as to monitor the local…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Xiaowen Ma , Jiawei Yang , Tingfeng Hong , Mengting Ma , Ziyan Zhao , Tian Feng , Wei Zhang