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Accelerated multi-coil magnetic resonance imaging reconstruction has seen a substantial recent improvement combining compressed sensing with deep learning. However, most of these methods rely on estimates of the coil sensitivity profiles,…

Signal Processing · Electrical Eng. & Systems 2021-04-13 Marius Arvinte , Sriram Vishwanath , Ahmed H. Tewfik , Jonathan I. Tamir

Remote sensing images often suffer from substantial data loss due to factors such as thick cloud cover and sensor limitations. Existing methods for imputing missing values in remote sensing images fail to fully exploit spatiotemporal…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Zaiyan Zhang , Jining Yan , Yuanqi Liang , Jiaxin Feng , Haixu He , Li Cao

In TDD massive MIMO systems, channel estimation under sparse frequency-hopping pilots is challenging: each snapshot captures only one narrow pilot block that hops across frequency, with tens of milliseconds between adjacent snapshots.…

Signal Processing · Electrical Eng. & Systems 2026-04-08 Yufei Ma , Xu Zhu , Tiejun Li

With the help of micro-Doppler signature, ultra-wideband (UWB) through-the-wall radar (TWR) enables the reconstruction of range and velocity information of limb nodes to accurately identify indoor human activities. However, existing methods…

Signal Processing · Electrical Eng. & Systems 2024-08-23 Xiaopeng Yang , Weicheng Gao , Xiaodong Qu , Zeyu Ma , Hao Zhang

A novel movable-element enabled simultaneously transmitting and reflecting surface (ME-STARS) communication system is proposed, where ME-STARS elements positions can be adjusted to enhance the degress-of-freedom for transmission and…

Signal Processing · Electrical Eng. & Systems 2024-12-31 Jingjing Zhao , Quan Zhou , Xidong Mu , Kaiquan Cai , Yanbo Zhu , Yuanwei Liu

Beyond diagonal reconfigurable intelligent surface (BD-RIS)s enhance wave manipulation through inter-element couplings but pose significant channel estimation challenges due to cascaded channels and block-Kronecker structures. This paper…

Signal Processing · Electrical Eng. & Systems 2026-03-02 Daniel Costa Araújo , André L. F. de Almeida

This work examines the multi-view compressive phase retrieval problem in a distributed sensor network, where each sensor device, limited by storage and sensing capabilities, can access only intensity measurements from an unknown part of the…

Information Theory · Computer Science 2025-06-02 Ming-Hsun Yang

Human activity recognition (HAR) requires extracting accurate spatial-temporal features with human movements. A mmWave radar point cloud-based HAR system suffers from sparsity and variable-size problems due to the physical features of the…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Senhao Gao , Junqing Zhang , Luoyu Mei , Shuai Wang , Xuyu Wang

Grant-free transmission and cell-free communication are vital in improving coverage and quality-of-service for massive machine-type communication. This paper proposes a novel framework of joint active user detection, channel estimation, and…

Signal Processing · Electrical Eng. & Systems 2025-02-20 Gangle Sun , Mengyao Cao , Wenjin Wang , Wei Xu , Christoph Studer

In this paper, a data-driven approach is proposed to jointly design the common sensing (measurement) matrix and jointly support recovery method for complex signals, using a standard deep auto-encoder for real numbers. The auto-encoder in…

Information Theory · Computer Science 2020-05-07 Wanqing Zhang , Shuaichao Li , Ying Cui

A hardware model for active simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) is proposed consisting of reflection-type amplifiers. The amplitude gains of the STAR element are derived for both…

Signal Processing · Electrical Eng. & Systems 2023-02-10 Jiaqi Xu , Jiakuo Zuo , Joey Tianyi Zhou , Yuanwei Liu

In this paper, we consider the recovery of the high-dimensional block-sparse signal from a compressed set of measurements, where the non-zero coefficients of the recovered signal occur in a small number of blocks. Adopting the idea of deep…

Signal Processing · Electrical Eng. & Systems 2021-11-19 Rong Fu , Vincent Monardo , Tianyao Huang , Yimin Liu

The use of fluorescent molecules to create long sequences of low-density, diffraction-limited images enables highly-precise molecule localization. However, this methodology requires lengthy imaging times, which limits the ability to view…

Image and Video Processing · Electrical Eng. & Systems 2024-03-26 Yair Ben Sahel , Yonina C. Eldar

One of the main problems in applying deep learning techniques to recognize activities of daily living (ADLs) based on inertial sensors is the lack of appropriately large labelled datasets to train deep learning-based models. A large amount…

Computer Vision and Pattern Recognition · Computer Science 2023-11-15 Hamza Amrani , Daniela Micucci , Paolo Napoletano

Seismic data interpolation is a critical pre-processing step for improving seismic imaging quality and remains a focus of academic innovation. To address the computational inefficiencies caused by extensive iterative resampling in current…

Clinical 12-lead ECG classification remains difficult because of diverse recording conditions, overlapping pathologies, and pronounced label imbalance hinder generalization, while unconstrained augmentations risk distorting diagnostically…

Signal Processing · Electrical Eng. & Systems 2025-10-30 Nader Nemati

Aims: The aim of this work is to study the application of the artificial neural networks guided by the autoencoder architecture as a method for precise reconstruction of the neutron star equation of state, using their observable parameters:…

High Energy Astrophysical Phenomena · Physics 2020-10-07 Filip Morawski , Michał Bejger

Graph convolutional networks have been widely used in skeleton-based action recognition. However, existing approaches are limited in fine-grained action recognition due to the similarity of inter-class data. Moreover, the noisy data from…

Computer Vision and Pattern Recognition · Computer Science 2023-06-28 Sheng-Lan Liu , Yu-Ning Ding , Jin-Rong Zhang , Kai-Yuan Liu , Si-Fan Zhang , Fei-Long Wang , Gao Huang

With joint learning of sampling and recovery, the deep learning-based compressive sensing (DCS) has shown significant improvement in performance and running time reduction. Its reconstructed image, however, losses high-frequency content…

Computer Vision and Pattern Recognition · Computer Science 2018-09-19 Thuong Nguyen Canh , Byeungwoo Jeon

Dynamics and function of neuronal networks are determined by their synaptic connectivity. Current experimental methods to analyze synaptic network structure on the cellular level, however, cover only small fractions of functional neuronal…

Neurons and Cognition · Quantitative Biology 2015-07-28 Yury V. Zaytsev , Abigail Morrison , Moritz Deger
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