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Optimal MIMO detection has been one of the most challenging and computationally inefficient tasks in wireless systems. We show that the new analog computing techniques like Coherent Ising Machines (CIM) are promising candidates for…

Networking and Internet Architecture · Computer Science 2024-09-06 Abhishek Kumar Singh , Kyle Jamieson , Davide Venturelli , Peter McMahon

Feedforward multilayer networks trained by supervised learning have recently demonstrated state of the art performance on image labeling problems such as boundary prediction and scene parsing. As even very low error rates can limit…

Computer Vision and Pattern Recognition · Computer Science 2013-12-09 Gary B. Huang , Viren Jain

Distributed MIMO radar is known to achieve superior sensing performance by employing widely separated antennas. However, it is challenging to implement a low-complexity distributed MIMO radar due to the complex operations at both the…

Signal Processing · Electrical Eng. & Systems 2023-02-17 Yikun Xiang , Feng Xi , Shengyao Chen

With FaSS-MVS, we present an approach for fast multi-view stereo with surface-aware Semi-Global Matching that allows for rapid depth and normal map estimation from monocular aerial video data captured by UAVs. The data estimated by…

Computer Vision and Pattern Recognition · Computer Science 2024-10-21 Boitumelo Ruf , Martin Weinmann , Stefan Hinz

Synthetic aperture radar tomography (TomoSAR) baseline optimization technique is capable of reducing system complexity and improving the temporal coherence of data, which has become an important research in the field of TomoSAR. In this…

Signal Processing · Electrical Eng. & Systems 2022-12-02 Pengyu Jiang , Zhe Zhang , Bingchen Zhang , Zhongqiu Xu

This paper considers signal detection in massive multiple-input multiple-output (MIMO) systems with general additive hardware impairments and one-bit quantization. First, we present the quantization-unaware and Bussgang decomposition-based…

Signal Processing · Electrical Eng. & Systems 2020-02-06 Özlem Tugfe Demir , Emil Björnson

A photonics-assisted analog wideband RF self-interference (SI) cancellation and frequency downconversion approach for in-band full-duplex (IBFD) multiple-input multiple-output (MIMO) systems with adaptive digital amplitude and delay…

Signal Processing · Electrical Eng. & Systems 2023-04-12 Taixia Shi , Yang Chen

Multiple-Input Multiple-Output (MIMO) radars provide various advantages as compared to conventional radars. Among these advantages, improved angular diversity feature is being explored for future fully autonomous vehicles. Improved angular…

Signal Processing · Electrical Eng. & Systems 2022-08-19 Hamza Malik , Jehanzeb Burki , Muhammad Zeeshan Mumtaz

Interactive Text-to-image retrieval (I-TIR) is an important enabler for a wide range of state-of-the-art services in domains such as e-commerce and education. However, current methods rely on finetuned Multimodal Large Language Models…

Information Retrieval · Computer Science 2025-07-11 Zijun Long , Kangheng Liang , Gerardo Aragon-Camarasa , Richard Mccreadie , Paul Henderson

In smart city development, the automatic detection of structures and vehicles within urban or suburban areas via array radar (airborne or vehicle platforms) becomes crucial. However, the inescapable multipath effect adversely affects the…

Signal Processing · Electrical Eng. & Systems 2024-07-26 Yizhen Jia , Jie Cheng , Wen-Qin Wang , Hui Chen

In conventional colocated multiple-input multiple-output (MIMO) radars, practical waveform constraints including peak-to-average power ratio, constant or bounded modulus lead to a significant performance reduction of transmit beampattern,…

Signal Processing · Electrical Eng. & Systems 2024-10-08 Shengyao Chen , Minghui He , Longyao Ran , Hongtao Li , Feng Xi , Sirui Tian , Zhong Liu

The earlier works in the context of low-rank-sparse-decomposition (LRSD)-driven stationary synthetic aperture radar (SAR) imaging have shown significant improvement in the reconstruction-decomposition process. Neither of the proposed…

Image and Video Processing · Electrical Eng. & Systems 2025-12-12 Hamid Reza Hashempour , Majid Moradikia , Hamed Bastami , Ahmed Abdelhadi , Mojtaba Soltanalian

Millimeter-wave (mmWave) communications and cell densification are the key techniques for the future evolution of cellular systems beyond 5G. Although the current mmWave radio designs are focused on hybrid digital and analog receiver array…

Signal Processing · Electrical Eng. & Systems 2020-04-06 Han Yan , Danijela Cabric

Distributed phased arrays based multiple-input multiple-output (DPA-MIMO) is a newly introduced architecture that enables both spatial multiplexing and beamforming while facilitating highly reconfigurable hardware implementation in…

Information Theory · Computer Science 2020-08-21 Yu Zhang , Yiming Huo , Dongming Wang , Xiaodai Dong , Xiaohu You

Multi-image super-resolution (MISR) allows to increase the spatial resolution of a low-resolution (LR) acquisition by combining multiple images carrying complementary information in the form of sub-pixel offsets in the scene sampling, and…

Computer Vision and Pattern Recognition · Computer Science 2024-01-31 Luca Savant Aira , Diego Valsesia , Andrea Bordone Molini , Giulia Fracastoro , Enrico Magli , Andrea Mirabile

High-resolution is a key trend in the development of synthetic aperture radar (SAR), which enables the capture of fine details and accurate representation of backscattering properties. However, traditional high-resolution SAR imaging…

Signal Processing · Electrical Eng. & Systems 2023-04-11 Guoru Zhou , Zhongqiu Xu , Yizhe Fan , Zhe Zhang , Xiaolan Qiu , Bingchen Zhang , Kun Fu , Yirong Wu

We propose a non-learning depth completion method for a sparse depth map captured using a light detection and ranging (LiDAR) sensor guided by a pair of stereo images. Generally, conventional stereo-aided depth completion methods have two…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Yasuhiro Yao , Ryoichi Ishikawa , Shingo Ando , Kana Kurata , Naoki Ito , Jun Shimamura , Takeshi Oishi

A widely-distributed radar system is a promising architecture to enhance radar imaging performance. However, most existing algorithms rely on isotropic scattering assumption, which is only satisfied in collocated radar systems. Moreover,…

Signal Processing · Electrical Eng. & Systems 2020-11-10 Ruizhi Hu , Bhavani Shankar Mysore Rama Rao , Ahmed Murtada , Mohammad Alaee-Kerahroodi , Björn Ottersten

It is a challenging problem to detect and recognize targets on complex large-scene Synthetic Aperture Radar (SAR) images. Recently developed deep learning algorithms can automatically learn the intrinsic features of SAR images, but still…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Siyan Li , Yue Xiao , Yuhang Zhang , Lei Chu , Robert C. Qiu

Intelligent Reflecting Surfaces (IRSs) are a promising technology for enhancing the spectral and energy efficiency of millimeter-wave (mmWave) multiple-input multiple-output (MIMO) systems. In these systems, accurate channel estimation…

Signal Processing · Electrical Eng. & Systems 2026-05-15 Mehrdad Momen-Tayefeh , Mehrshad Momen-Tayefeh , Maryam Sabbaghian