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Vehicular visible light communication (V-VLC) aims to provide secure complementary vehicle to everything communications (V2X) to increase road safety and traffic efficiency. V-VLC provides directional transmissions, mainly enabling…

Signal Processing · Electrical Eng. & Systems 2021-11-23 Bugra Turan , Omer Narmanlioglu , Osman Nuri Koc , Emrah Kar , Sinem Coleri , Murat Uysal

Compressed sensing is a powerful tool in applications such as magnetic resonance imaging (MRI). It enables accurate recovery of images from highly undersampled measurements by exploiting the sparsity of the images or image patches in a…

Machine Learning · Statistics 2016-10-04 Saiprasad Ravishankar , Yoram Bresler

Underwater acoustic environment estimation is a challenging but important task for remote sensing scenarios. Current estimation methods require high signal strength and a solution to the fragile echo labeling problem to be effective. In…

Ultra-reliable and low-latency communications (URLLC) partakes a major role in 5G networks for mission-critical applications. Sparse vector coding (SVC) appears as a strong candidate for future URLLC networks by enabling superior…

Signal Processing · Electrical Eng. & Systems 2020-04-20 Emre Arslan , Ali Tugberk Dogukan , Ertugrul Basar

Underwater images suffer from color casts and low contrast due to wavelength- and distance-dependent attenuation and scattering. To solve these two degradation issues, we present an underwater image enhancement network via medium…

Computer Vision and Pattern Recognition · Computer Science 2021-05-26 Chongyi Li , Saeed Anwar , Junhui Hou , Runmin Cong , Chunle Guo , Wenqi Ren

Monitoring coral reefs using underwater vehicles increases the range of marine surveys and availability of historical ecological data by collecting significant quantities of images. Analysis of this imagery can be automated using a model…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Scarlett Raine , Ross Marchant , Brano Kusy , Frederic Maire , Tobias Fischer

We consider the problem of downlink channel estimation for intelligent reflecting surface (IRS)-assisted millimeter Wave (mmWave) orthogonal frequency division multiplexing (OFDM) systems. By exploring the inherent sparse scattering…

Signal Processing · Electrical Eng. & Systems 2022-03-31 Xi Zheng , Peilan Wang , Jun Fang , Hongbin Li

Semantic communications could improve the transmission efficiency significantly by exploring the semantic information. In this paper, we make an effort to recover the transmitted speech signals in the semantic communication systems, which…

Signal Processing · Electrical Eng. & Systems 2021-09-09 Zhenzi Weng , Zhijin Qin

Visual Language Navigation (VLN) is a fundamental task within the field of Embodied AI, focusing on the ability of agents to navigate complex environments based on natural language instructions. Despite the progress made by existing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Ruoyu Wang , Tong Yu , Junda Wu , Yao Liu , Julian McAuley , Lina Yao

This paper addresses the problem of dense depth predictions from sparse distance sensor data and a single camera image on challenging weather conditions. This work explores the significance of different sensor modalities such as camera,…

Computer Vision and Pattern Recognition · Computer Science 2020-12-18 Sadique Adnan Siddiqui , Axel Vierling , Karsten Berns

High-quality underwater images are essential for both machine vision tasks and viewers with their aesthetic appeal.However, the quality of underwater images is severely affected by light absorption and scattering. Deep learning-based…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Jiangzhong Cao , Zekai Zeng , Xu Zhang , Huan Zhang , Chunling Fan , Gangyi Jiang , Weisi Lin

Wideband wireless channel is a time dispersive channel and becomes strongly frequency-selective. However, in most cases, the channel is composed of a few dominant taps and a large part of taps is approximately zero or zero. They are often…

Information Theory · Computer Science 2010-05-14 Guan Gui , An-min Huang , Qun Wan

The problem of super-resolution compressive sensing (SR-CS) is crucial for various wireless sensing and communication applications. Existing methods often suffer from limited resolution capabilities and sensitivity to hyper-parameters,…

Signal Processing · Electrical Eng. & Systems 2025-08-12 Yufan Zhou , Jingyi Li , Wenkang Xu , An Liu

When employing underwater vehicles for the autonomous inspection of assets, it is crucial to consider and assess the water conditions. These conditions significantly impact visibility and directly affect robotic operations. Turbidity can…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Alexandre Cardaillac , Donald G. Dansereau

Underwater image enhancement has attracted much attention due to the rise of marine resource development in recent years. Benefit from the powerful representation capabilities of Convolution Neural Networks(CNNs), multiple underwater image…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Yudong Wang , Jichang Guo , Huan Gao , Huihui Yue

Due to the uneven absorption of different light wavelengths in aquatic environments, underwater images suffer from low visibility and clear color deviations. With the advancement of autonomous underwater vehicles, extensive research has…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Zengxi Zhang , Zeru Shi , Zhiying Jiang , Jinyuan Liu

Autoencoding has achieved great empirical success as a framework for learning generative models for natural images. Autoencoders often use generic deep networks as the encoder or decoder, which are difficult to interpret, and the learned…

Computer Vision and Pattern Recognition · Computer Science 2023-02-21 Xili Dai , Ke Chen , Shengbang Tong , Jingyuan Zhang , Xingjian Gao , Mingyang Li , Druv Pai , Yuexiang Zhai , XIaojun Yuan , Heung-Yeung Shum , Lionel M. Ni , Yi Ma

Effective spatio-temporal measurements of water surface elevation (water waves) in laboratory experiments are crucial for scientific and engineering research. Existing techniques are often cumbersome, computationally heavy and generally…

Atmospheric and Oceanic Physics · Physics 2024-10-22 Noam Ginio , Michael Lindenbaum , Barak Fishbain , Dan Liberzon

Sparse Bayesian learning (SBL) is a popular approach to sparse signal recovery in compressed sensing (CS). In SBL, the signal sparsity information is exploited by assuming a sparsity-inducing prior for the signal that is then estimated…

Information Theory · Computer Science 2012-09-03 Zai Yang , Lihua Xie , Cishen Zhang

The iterations of many sparse estimation algorithms are comprised of a fixed linear filter cascaded with a thresholding nonlinearity, which collectively resemble a typical neural network layer. Consequently, a lengthy sequence of algorithm…

Machine Learning · Computer Science 2016-05-11 Bo Xin , Yizhou Wang , Wen Gao , David Wipf
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