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Undocumented orphaned wells pose significant health and environmental risks to nearby communities by releasing toxic gases and contaminating water sources, with methane emissions being a primary concern. Traditional survey methods such as…

Systems and Control · Electrical Eng. & Systems 2026-03-13 Zhirun Li , Derek Hollenbeck , Ruikun Wu , Michelle Sherman , Sihua Shao , Xiang Sun , Mostafa Hassanalian

We consider the problem of reconstructing one-dimensional point sources from their Fourier measurements in a bounded interval $[-\Omega, \Omega]$. This problem is known to be challenging in the regime where the spacing of the sources is…

Signal Processing · Electrical Eng. & Systems 2024-06-11 Zetao Fei , Hai Zhang

Visual events are usually accompanied by sounds in our daily lives. However, can the machines learn to correlate the visual scene and sound, as well as localize the sound source only by observing them like humans? To investigate its…

Computer Vision and Pattern Recognition · Computer Science 2019-11-22 Arda Senocak , Tae-Hyun Oh , Junsik Kim , Ming-Hsuan Yang , In So Kweon

We present a 3-dimensional matched filtering approach for the blind search of faint emission-line sources in integral-field spectroscopic datasets. The filter is designed to account for the spectrally rapidly varying background noise due to…

Instrumentation and Methods for Astrophysics · Physics 2023-03-21 Edmund Christian Herenz

The present work deals with a new passive system for real-time detection, classification and direction of arrival estimator of Unmanned Aerial Vehicles (UAVs). The proposed system composed of a very low cost hardware components, comprises…

Audio and Speech Processing · Electrical Eng. & Systems 2019-03-01 Konstantinos Polyzos , Evangelos Dermatas

Diffusion models are a powerful framework for tackling ill-posed problems, with recent advancements extending their use to point cloud upsampling. Despite their potential, existing diffusion models struggle with inefficiencies as they map…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Zhi-Song Liu , Chenhang He , Lei Li

This work considers the placement of unmanned aerial vehicle base stations (UAV-BSs) with criterion of minimum UAV-recall-frequency (UAV-RF), indicating the energy efficiency of mobile UAVs networks. Several different power consumptions,…

Information Theory · Computer Science 2017-09-12 Jiaxun Lu , Shuo Wan , Xuhong Chen , Zhengchuan Chen , Pingyi Fan , Khaled B. Letaief

This paper presents a novel approach for indoor acoustic source localization using microphone arrays and based on a Convolutional Neural Network (CNN). The proposed solution is, to the best of our knowledge, the first published work in…

Sound · Computer Science 2019-02-01 Juan Manuel Vera-Diaz , Daniel Pizarro , Javier Macias-Guarasa

Herein, the problem of simultaneous localization of multiple sources given a number of energy samples at different locations is examined. The strategies do not require knowledge of the signal propagation models, nor do they exploit the…

Information Theory · Computer Science 2019-02-13 Junting Chen , Urbashi Mitra

We present a novel deep architecture and a training strategy to learn a local feature pipeline from scratch, using collections of images without the need for human supervision. To do so we exploit depth and relative camera pose cues to…

Computer Vision and Pattern Recognition · Computer Science 2018-11-26 Yuki Ono , Eduard Trulls , Pascal Fua , Kwang Moo Yi

In Ultrasound Localization Microscopy (ULM), achieving high-resolution images relies on the precise localization of contrast agent particles across a series of beamformed frames. However, our study uncovers an enormous potential: The…

Computational Geometry · Computer Science 2024-04-09 Christopher Hahne , Georges Chabouh , Arthur Chavignon , Olivier Couture , Raphael Sznitman

The potential usage of UAVs in daily life has made monitoring them essential. However, existing systems for monitoring UAVs typically rely on cameras, LiDARs, or radars, whose limited sensing range or high deployment cost hinder large-scale…

Networking and Internet Architecture · Computer Science 2026-04-01 Chengzhen Meng , Chenming He , Yidong Jiang , Xiaoran Fan , Dequan Wang , Lingyu Wang , Jianmin Ji , Yanyong Zhang

This paper proposes an ultra-wideband (UWB) aided localization and mapping system that leverages on inertial sensor and depth camera. Inspired by the fact that visual odometry (VO) system, regardless of its accuracy in the short term, still…

Robotics · Computer Science 2018-02-27 Chen Wang , Handuo Zhang , Thien-Minh Nguyen , Lihua Xie

The deconvolutional DAMAS algorithm can effectively eliminate the misconceptions in the usually-used beamforming localization algorithm, allowing for more accurate calculation of the source location as well as the intensity. When solving a…

Sound · Computer Science 2023-07-06 Weicheng Xue , Bing Yang , Shaohong Jia

Due to the diverse geographical environments, intricate landscapes, and high-density settlements, the automatic identification of urban village boundaries using remote sensing images remains a highly challenging task. This paper proposes a…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Lulin Li , Ben Chen , Xuechao Zou , Junliang Xing , Pin Tao

Localization of a radio frequency (RF) transmitter with intermittent transmissions is considered via a group of unmanned aerial vehicles (UAVs) equipped with omnidirectional received signal strength (RSS) sensors. This group embarks on an…

Signal Processing · Electrical Eng. & Systems 2018-01-09 Farshad Koohifar , Ismail Guvenc , Mihail L. Sichitiu

We present a method for subtracting point sources from interferometric radio images via forward modeling of the instrument response and involving an algebraic nonlinear minimization. The method is applied to simulated maps of the Murchison…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 G. Bernardi , D. A. Mitchell , S. M. Ord , L. J. Greenhill , B. Pindor , R. B. Wayth , J. S. B. Wyithe

Advancements in unmanned aerial vehicle (UAV) technology have led to their increased utilization in various commercial and military applications. One such application is signal source search and localization (SSSL) using UAVs, which offers…

Signal Processing · Electrical Eng. & Systems 2023-05-30 Hyeokjun Kwon , Sung Joon Maeng , Ismail Guvenc

Ultrasound Localization Microscopy can resolve the microvascular bed down to a few micrometers. To achieve such performance microbubble contrast agents must perfuse the entire microvascular network. Microbubbles are then located…

Computer Vision and Pattern Recognition · Computer Science 2023-10-13 Léo Milecki , Jonathan Porée , Hatim Belgharbi , Chloé Bourquin , Rafat Damseh , Patrick Delafontaine-Martel , Frédéric Lesage , Maxime Gasse , Jean Provost

Localization of radio frequency (RF) sources has critical applications, including search and rescue, jammer detection, and monitoring of hostile activities. Unmanned aerial vehicles (UAVs) offer significant advantages for RF source…

Signal Processing · Electrical Eng. & Systems 2025-02-21 Saad Masrur , Ismail Guvenc