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Compressed Sensing MRI (CS-MRI) has provided theoretical foundations upon which the time-consuming MRI acquisition process can be accelerated. However, it primarily relies on iterative numerical solvers which still hinders their adaptation…

计算机视觉与模式识别 · 计算机科学 2018-06-12 Tran Minh Quan , Thanh Nguyen-Duc , Won-Ki Jeong

In this paper, we investigate the integration of integrated sensing and communication (ISAC) and reconfigurable intelligent surfaces (RIS) for providing wide-coverage and ultra-reliable communication and high-accuracy sensing functions. In…

信号处理 · 电气工程与系统科学 2025-02-17 Rang Liu , Ming Li , Qian Liu , A. Lee Swindlehurst

Reconfigurable Intelligent Surfaces (RISs) are regarded as a key technology for future wireless communications, enabling programmable radio propagation environments. However, the passive reflecting feature of RISs induces notable challenges…

信号处理 · 电气工程与系统科学 2022-02-15 Liuhang Wang , Nir Shlezinger , George C. Alexandropoulos , Haiyang Zhang , Baoyun Wang , Yonina C. Elda

Portable, low-field Magnetic Resonance Imaging (MRI) scanners are increasingly being deployed in clinical settings. However, key barriers to their widespread use include low signal-to-noise ratio (SNR), generally low image quality, and long…

Millimeter wave beam alignment (BA) is a challenging problem especially for large number of antennas. Compressed sensing (CS) tools have been exploited due to the sparse nature of such channels. This paper presents a novel deterministic CS…

信号处理 · 电气工程与系统科学 2020-04-03 Erfan Khordad , Iain B. Collings , Stephen V. Hanly

Compressed sensing (CS) is a signal processing framework for efficiently reconstructing a signal from a small number of measurements, obtained by linear projections of the signal. Block-based CS is a lightweight CS approach that is mostly…

计算机视觉与模式识别 · 计算机科学 2016-06-07 Amir Adler , David Boublil , Michael Elad , Michael Zibulevsky

We investigate the power and performance improvement in image acquisition devices by the use of CAS (Compressed Acquisition Scheme) and DNN (Deep Neural Networks). Towards this end, we propose a novel image acquisition scheme HCAS (Hardware…

图像与视频处理 · 电气工程与系统科学 2019-11-19 Pravir Singh Gupta , Xin Yuan , Gwan Seong Choi

Deep learning based compressive sensing (CS) methods typically learn sampling operators using convolutional or block wise fully connected layers, which limit receptive fields and scale poorly for high dimensional data. We propose MTSCSNet,…

图像与视频处理 · 电气工程与系统科学 2026-02-10 Mehmet Yamac , Lei Xu , Serkan Kiranyaz , Moncef Gabbouj

Densifying networks and deploying more antennas at each access point are two principal ways to boost the capacity of wireless networks. However, the complicated distributions of the signal power and the accumulated interference power,…

信息论 · 计算机科学 2018-09-25 Xianghao Yu , Chang Li , Jun Zhang , Martin Haenggi , Khaled B. Letaief

In recent years, Compressed Sensing (CS) has gained significant interest as a technique for acquiring high-resolution sensory data using fewer measurements than traditional Nyquist sampling requires. At the same time, autonomous robotic…

机器人学 · 计算机科学 2025-07-25 Alghalya Al-Hajri , Ejmen Al-Ubejdij , Aiman Erbad , Ali Safa

We consider the recovery of an underlying signal x \in C^m based on projection measurements of the form y=Mx+w, where y \in C^l and w is measurement noise; we are interested in the case l < m. It is assumed that the signal model p(x) is…

信息论 · 计算机科学 2016-11-17 William R. Carson , Minhua Chen , Miguel R. D. Rodrigues , Robert Calderbank , Lawrence Carin

In this paper, we focus on radar imaging using active sensing with a single transceiver and reconfigurable intelligent surface (RIS). RISs are arrays with tunable passive phase shifter elements that can modify the propagation channel. The…

信号处理 · 电气工程与系统科学 2023-08-14 R. S. Prasobh Sankar , Sundeep Prabhakar Chepuri

In this paper, we investigate the multiple-input multiple-output (MIMO) transceiver design under an interesting power model named mixed power constraints. In the considered power model, several antenna subsets are constrained by sum power…

信息论 · 计算机科学 2015-08-25 Chengwen Xing , Zesong Fei , Yiqing Zhou , Zhengang Pan , Hualei Wang

Convolution neural networks (CNNs) have succeeded in compressive image sensing. However, due to the inductive bias of locality and weight sharing, the convolution operations demonstrate the intrinsic limitations in modeling the long-range…

图像与视频处理 · 电气工程与系统科学 2022-01-03 Dongjie Ye , Zhangkai Ni , Hanli Wang , Jian Zhang , Shiqi Wang , Sam Kwong

Compressed sensing (CS) is a signal acquisition paradigm to simultaneously acquire and reduce dimension of signals that admit sparse representation. This is achieved by collecting linear, non-adaptive measurements of a signal, which can be…

信息论 · 计算机科学 2019-11-19 Arman Arian , Ozgur Yilmaz

This paper presents a new integrated sensing and communication (ISAC) framework, leveraging the recent advancements of reconfigurable distributed antenna and reflecting surface (RDARS). RDARS is a programmable surface structure comprising…

信息论 · 计算机科学 2024-01-11 Pingping Zhang , Jintao Wang , Yulin Shao , Shaodan Ma

The performance of convolutional neural networks (CNNs) can be improved by adjusting the interrelationship between channels with attention mechanism. However, attention mechanism in recent advance has not fully utilized spatial information…

计算机视觉与模式识别 · 计算机科学 2020-10-13 YuTao Shen , Ying Wen

Compressive sensing (CS) is an alternative to Shannon/Nyquist sampling for the acquisition of sparse or compressible signals that can be well approximated by just K << N elements from an N-dimensional basis. Instead of taking periodic…

信息论 · 计算机科学 2016-11-17 Richard G. Baraniuk , Volkan Cevher , Marco F. Duarte , Chinmay Hegde

Recently, deep network-based image compressed sensing methods achieved high reconstruction quality and reduced computational overhead compared with traditional methods. However, existing methods obtain measurements only from partial…

计算机视觉与模式识别 · 计算机科学 2022-06-24 Zi-En Fan , Feng Lian , Jia-Ni Quan

A range of efficient wireless processes and enabling techniques are put under a magnifier glass in the quest for exploring different manifestations of correlated processes, where sub-Nyquist sampling may be invoked as an explicit benefit of…

信息论 · 计算机科学 2017-09-08 Zhen Gao , Linglong Dai , Shuangfeng Han , I Chih-Lin , Zhaocheng Wang , Lajos Hanzo