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Physical layer security is an emerging technique to improve the wireless communication security, which is widely regarded as a complement to cryptographic technologies. To design physical layer security techniques under practical scenarios,…

信息论 · 计算机科学 2013-07-22 Biao He , Xiangyun Zhou , Thushara D. Abhayapala

With the development of wireless network technologies, the wireless image transmission area has become prominent. The need for high resolution, data traffic density, widespread use of multimedia applications, and the importance of high rate…

信号处理 · 电气工程与系统科学 2025-07-15 Burak Ahmet Ozden , Erdogan Aydin , Ahmet Elbir , Filiz Gurkan

Existing Wi-Fi sensing systems rely on injecting high-rate probing packets to extract channel state information (CSI), leading to communication degradation and poor deployability. Although Integrated Sensing and Communication (ISAC) is a…

信号处理 · 电气工程与系统科学 2025-12-30 Gaofeng Dong , Kang Yang , Mani Srivastava

Compressive spectral imaging (CSI) has emerged as an alternative spectral image acquisition technology, which reduces the number of measurements at the cost of requiring a recovery process. In general, the reconstruction methods are based…

图像与视频处理 · 电气工程与系统科学 2021-05-19 Jorge Bacca , Yesid Fonseca , Henry Arguello

White-Fi refers to WiFi deployed in the TV white spaces. Unlike its ISM band counterparts, White-Fi must obey requirements that protect TV reception. As a result, optimization of citywide White-Fi networks faces the challenges of…

网络与互联网体系结构 · 计算机科学 2018-09-20 Sneihil Gopal , Sanjit K. Kaul , Sumit Roy

Communication enables the expansion of human visual perception beyond the limitations of time and distance, while computational imaging overcomes the constraints of depth and breadth. Although impressive achievements have been witnessed…

图像与视频处理 · 电气工程与系统科学 2024-10-30 Zhenming Yu , Liming Cheng , Hongyu Huang , Wei Zhang , Liang Lin , Kun Xu

We study the problem of indoor localization using commodity WiFi channel state information (CSI) measurements. The accuracy of methods developed to address this problem is limited by the overall bandwidth used by the WiFi device as well as…

网络与互联网体系结构 · 计算机科学 2019-03-07 Mahdi Barzegar Khalilsarai , Stelios Stefanatos , Gerhard Wunder , Giuseppe Caire

This study introduces a pioneering approach in brain-computer interface (BCI) technology, featuring our novel concept of complex visual imagery for non-invasive electroencephalography (EEG)-based communication. Complex visual imagery, as…

人机交互 · 计算机科学 2025-11-20 Byoung-Hee Kwon

Deep image translation methods have recently shown excellent results, outputting high-quality images covering multiple modes of the data distribution. There has also been increased interest in disentangling the internal representations…

计算机视觉与模式识别 · 计算机科学 2018-11-06 Abel Gonzalez-Garcia , Joost van de Weijer , Yoshua Bengio

Computational wave imaging (CWI) extracts hidden structure and physical properties of a volume of material by analyzing wave signals that traverse that volume. Applications include seismic exploration of the Earth's subsurface, acoustic…

In this paper, we consider the problem of wireless channel prediction, where we are interested in predicting the channel quality at unvisited locations in an area of interest, based on a small number of prior received power measurements…

信号处理 · 电气工程与系统科学 2022-03-29 Chitra R. Karanam , Yasamin Mostofi

In Wi-Fi systems, channel state information (CSI) plays a crucial role in enabling access points to execute beamforming operations. However, the feedback overhead associated with CSI significantly hampers the throughput improvements. Recent…

信号处理 · 电气工程与系统科学 2024-07-09 Fan Qi , Jiajia Guo , Yiming Cui , Xiangyi Li , Chao-Kai Wen , Shi Jin

Channel charting is a recently proposed framework that applies dimensionality reduction to channel state information (CSI) in wireless systems with the goal of associating a pseudo-position to each mobile user in a low-dimensional space:…

信息论 · 计算机科学 2023-04-18 Paul Ferrand , Maxime Guillaud , Christoph Studer , Olav Tirkkonen

Image warping is a necessary step in many multimedia applications such as texture mapping, image-based rendering, panorama stitching, image resizing and optical flow computation etc. Traditionally, color image warping interpolation is…

计算机视觉与模式识别 · 计算机科学 2018-12-20 Chuangye Zhang , Yan Niu , Tieru Wu , Ximing Li

The rapid development of artificial intelligence has significantly advanced semantic communications, particularly in wireless image transmission. However, most existing approaches struggle to precisely distinguish and prioritize image…

图像与视频处理 · 电气工程与系统科学 2024-10-24 Jiarun Ding , Peiwen Jiang , Chao-Kai Wen , Shi Jin

CSI extrapolation is an effective method for acquiring channel state information (CSI), essential for optimizing performance of sixth-generation (6G) communication systems. Traditional channel estimation methods face scalability challenges…

信号处理 · 电气工程与系统科学 2026-02-02 Yuan Gao , Zichen Lu , Xinyi Wu , Wenjun Yu , Shengli Liu , Jianbo Du , Yanliang Jin , Shunqing Zhang , Xiaoli Chu , Shugong Xu

Simulation-based imaging (SBI) is a blood flow imaging technique that optimally fits a computational fluid dynamics (CFD) simulation to low-resolution, noisy magnetic resonance (MR) flow data to produce a high-resolution velocity field. In…

数值分析 · 数学 2021-10-01 Charles J. Naudet , Johannes Toger , Matthew J. Zahr

Hyperspectral imaging (HSI) is an advanced sensing modality that simultaneously captures spatial and spectral information, enabling non-invasive, label-free analysis of material, chemical, and biological properties. This Primer presents a…

计算机视觉与模式识别 · 计算机科学 2026-02-10 Danfeng Hong , Chenyu Li , Naoto Yokoya , Bing Zhang , Xiuping Jia , Antonio Plaza , Paolo Gamba , Jon Atli Benediktsson , Jocelyn Chanussot

Compressive Sensing (CS) theory asserts that sparse signal reconstruction is possible from a small number of linear measurements. Although CS enables low-cost linear sampling, it requires non-linear and costly reconstruction. Recent…

机器学习 · 计算机科学 2018-10-16 Aysen Degerli , Sinem Aslan , Mehmet Yamac , Bulent Sankur , Moncef Gabbouj

In this paper, we show that attackers can exfiltrate data from air-gapped computers via Wi-Fi signals. Malware in a compromised air-gapped computer can generate signals in the Wi-Fi frequency bands. The signals are generated through the…

密码学与安全 · 计算机科学 2020-12-15 Mordechai Guri