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Intrinsic image decomposition is an important and long-standing computer vision problem. Given an input image, recovering the physical scene properties is ill-posed. Several physically motivated priors have been used to restrict the…

计算机视觉与模式识别 · 计算机科学 2022-09-27 Zongji Wang , Yunfei Liu , Feng Lu

Intelligent reflecting surfaces (IRSs), consisting of reconfigurable metamaterials, have recently attracted attention as a promising cost-effective technology that can bring new features to wireless communications. These surfaces can be…

信号处理 · 电气工程与系统科学 2020-09-30 Özgecan Özdogan , Emil Björnson

Acquiring face images of sufficiently high quality is important for online ID and travel document issuance applications using face recognition systems (FRS). Low-quality, manipulated (intentionally or unintentionally), or distorted images…

计算机视觉与模式识别 · 计算机科学 2025-01-14 Wassim Kabbani , Tristan Le Pessot , Kiran Raja , Raghavendra Ramachandra , Christoph Busch

Due to the Internet of Things (IoT) proliferation, Radio Frequency (RF) channels are increasingly congested with new kinds of devices, which carry unique and diverse communication needs. This poses complex challenges in modern digital…

信号处理 · 电气工程与系统科学 2022-04-05 Matthew Setzler , Elizabeth Coda , Jeremiah Rounds , Michael Vann , Michael Girard

In this work, we investigate the feasibility and effectiveness of employing deep learning algorithms for automatic recognition of the modulation type of received wireless communication signals from subsampled data. Recent work considered a…

信号处理 · 电气工程与系统科学 2019-01-18 Sharan Ramjee , Shengtai Ju , Diyu Yang , Xiaoyu Liu , Aly El Gamal , Yonina C. Eldar

Understanding lattice deformations is crucial in determining the properties of nanomaterials, which can become more prominent in future applications ranging from energy harvesting to electronic devices. However, it remains challenging to…

Noises, artifacts, and loss of information caused by the magnetic resonance (MR) reconstruction may compromise the final performance of the downstream applications. In this paper, we develop a re-weighted multi-task deep learning method to…

计算机视觉与模式识别 · 计算机科学 2020-11-30 Kehan Qi , Yu Gong , Xinfeng Liu , Xin Liu , Hairong Zheng , Shanshan Wang

Recently, Differentiable Ray Tracing has been successfully applied in the field of wireless communications for learning radio materials or optimizing the transmitter orientation. However, in the frame of gradient based optimization,…

信号处理 · 电气工程与系统科学 2024-04-30 Jerome Eertmans , Laurent Jacques , Claude Oestges

Path loss prediction for wireless communications is highly dependent on the local environment. Propagation models including clutter information have been shown to significantly increase model accuracy. This paper explores the application of…

机器学习 · 计算机科学 2024-08-21 Ryan Dempsey , Jonathan Ethier

Recent successes of deep learning-based recognition rely on maintaining the content related to the main-task label. However, how to explicitly dispel the noisy signals for better generalization in a controllable manner remains an open…

计算机视觉与模式识别 · 计算机科学 2020-06-16 Xiaofeng Liu

The rise of deepfake images, especially of well-known personalities, poses a serious threat to the dissemination of authentic information. To tackle this, we present a thorough investigation into how deepfakes are produced and how they can…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Haixu Song , Shiyu Huang , Yinpeng Dong , Wei-Wei Tu

Machine learning is attracting surging interest across nearly all scientific areas by enabling the analysis of large datasets and the extraction of scientific information from incomplete data. Data-driven science is rapidly growing,…

应用物理 · 物理学 2025-03-17 Sung Yun Lee , Do Hyung Cho , Chulho Jung , Daeho Sung , Daewoong Nam , Sangsoo Kim , Changyong Song

Representation learning is a widely adopted framework for learning in data-scarce environments to obtain a feature extractor or representation from various different yet related tasks. Despite extensive research on representation learning,…

机器学习 · 计算机科学 2025-12-30 Donghwa Kang , Shana Moothedath

Deep neural networks (DNNs) are increasingly being used in a variety of traditional radiofrequency (RF) problems. Previous work has shown that while DNN classifiers are typically more accurate than traditional signal processing algorithms,…

密码学与安全 · 计算机科学 2022-02-24 Roman A. Sandler , Peter K. Relich , Cloud Cho , Sean Holloway

The employment of convolutional neural networks has achieved unprecedented performance in the task of image restoration for a variety of degradation factors. However, high-performance networks have been specifically designed for a single…

计算机视觉与模式识别 · 计算机科学 2020-01-22 Xing Liu , Masanori Suganuma , Xiyang Luo , Takayuki Okatani

Purpose: Field monitoring measures field perturbations, which can be accounted for during image reconstructions. In certain field monitoring environments, significant phase deviations can arise far from isocenter due to the finite extent of…

医学物理 · 物理学 2023-01-25 Paul I. Dubovan , Kyle M. Gilbert , Corey A. Baron

This paper investigates the problem of dim frequency line detection and recovery in the so-called lofargram. Theoretically, time integration long enough can always enhance the detection characteristic. But this does not hold for irregularly…

信号处理 · 电气工程与系统科学 2020-12-02 Yina Han , Yuyan Li , Qingyu Liu , Yuanliang Ma

The paper presents algorithms to realize effectively and accurately the stepped-frequency waveform reflectometry (SFWR), i.e. the reflectometric technique based on the use of sinusoidal bursts. This technique is useful for monitoring the…

信号处理 · 电气工程与系统科学 2020-02-19 Nicola Giaquinto , Marco Scarpetta , Maurizio Spadavecchia

As drones become increasingly prevalent in human life, they also raises security concerns such as unauthorized access and control, as well as collisions and interference with manned aircraft. Therefore, ensuring the ability to accurately…

信号处理 · 电气工程与系统科学 2023-08-29 Zixiao Zhao , Qinghe Du , Xiang Yao , Lei Lu , Shijiao Zhang

The study and benchmarking of Deep Reinforcement Learning (DRL) models has become a trend in many industries, including aerospace engineering and communications. Recent studies in these fields propose these kinds of models to address…

机器学习 · 计算机科学 2021-01-13 Juan Jose Garau Luis , Edward Crawley , Bruce Cameron