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Related papers: Radio U-Net: a convolutional neural network to det…

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Next-generation radio surveys will yield an unprecedented amount of data, warranting analysis by use of machine learning techniques. Convolutional neural networks are the deep learning technique that has proven to be the most successful in…

Instrumentation and Methods for Astrophysics · Physics 2019-05-29 V. Lukic , M. Brüggen , B. Mingo , J. H. Croston , G. Kasieczka , P. N. Best

We demonstrate two new approaches that have been developed to aid the production of future hard X-ray catalogs, and specifically to reduce the reliance on human intervention during the detection of faint excesses in maps that also contain…

High Energy Astrophysical Phenomena · Physics 2022-01-19 V. A. Lepingwell , A. J. Bird , S. R. Gunn

Fully convolutional neural networks like U-Net have been the state-of-the-art methods in medical image segmentation. Practically, a network is highly specialized and trained separately for each segmentation task. Instead of a collection of…

Image and Video Processing · Electrical Eng. & Systems 2019-09-16 Chao Huang , Hu Han , Qingsong Yao , Shankuan Zhu , S. Kevin Zhou

The goal of the present study is to extend our current knowledge of the diffuse radio source (halo and relic) populations to $z$ $>$ 0.3. Here we report GMRT and EVLA radio observations of six galaxy clusters taken from the MAssive Cluster…

Astrophysics of Galaxies · Physics 2016-11-23 Viral Parekh , K. S. Dwarakanath , Ruta Kale , Huib Intema

Pulsar searching is essential for the scientific research in the field of physics and astrophysics. As the development of the radio telescope, the exploding volume and it growth speed of candidates growth have brought about several…

Instrumentation and Methods for Astrophysics · Physics 2023-12-27 Qingguo Zeng , Xiangru Li , Haitao Lin

Early diagnosis and analysis of lung cancer involve a precise and efficient lung nodule segmentation in computed tomography (CT) images. However, the anonymous shapes, visual features, and surroundings of the nodule in the CT image pose a…

Image and Video Processing · Electrical Eng. & Systems 2020-03-23 Nikhil Varma Keetha , Samson Anosh Babu P , Chandra Sekhara Rao Annavarapu

The direct detection of gravitational waves by LIGO has heralded a new era for astronomy and physics. Typically the gravitational waves observed by LIGO are dominated by noise. In this work we use Deep Convolutional Neural Networks…

General Relativity and Quantum Cosmology · Physics 2023-11-30 Akshay Ghalsasi

Current synoptic sky surveys monitor large areas of the sky to find variable and transient astronomical sources. As the number of detections per night at a single telescope easily exceeds several thousand, current detection pipelines make…

Unsupervised deep learning methods for solving audio restoration problems extensively rely on carefully tailored neural architectures that carry strong inductive biases for defining priors in the time or spectral domain. In this context,…

Objective: In clinical practice, small lung nodules can be easily overlooked by radiologists. The paper aims to provide an efficient and accurate detection system for small lung nodules while keeping good performance for large nodules.…

Image and Video Processing · Electrical Eng. & Systems 2021-06-09 Sunyi Zheng , Ludo J. Cornelissen , Xiaonan Cui , Xueping Jing , Raymond N. J. Veldhuis , Matthijs Oudkerk , Peter M. A. van Ooijen

Detecting diffuse radio emission, such as from halos, in galaxy clusters is crucial for understanding large-scale structure formation in the universe. Traditional methods, which rely on X-ray and Sunyaev-Zeldovich (SZ) cluster…

Astrophysics of Galaxies · Physics 2025-06-04 Ashutosh K. Mishra , Emma Tolley , Shreyam Parth Krishna , Jean-Paul Kneib

Pulsar searches are computationally demanding efforts to discover dispersed periodic signals in time- and frequency-resolved data from radio telescopes. The complexity and computational expense of simultaneously determining the…

Instrumentation and Methods for Astrophysics · Physics 2021-07-14 Lars Künkel , Rajat M. Thomas , Joris P. W. Verbiest

Next-generation particle accelerators demand advanced beam-diagnostic capabilities to ensure high performance, operational reliability, and sustainable machine operation. Increasing beam intensities and stored energies make the precise…

Accelerator Physics · Physics 2026-03-10 Francis René Osswald , Mohammed Chahbaoui , Xinyi Liang

With the rapid development of deep learning, a variety of change detection methods based on deep learning have emerged in recent years. However, these methods usually require a large number of training samples to train the network model, so…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Weidong Yan , Pei Yan , Li Cao

We present the application of deep machine learning technique to classify radio images of extended sources on a morphological basis using convolutional neural networks. In this study, we have taken the case of Fanaroff-Riley (FR) class of…

Instrumentation and Methods for Astrophysics · Physics 2017-06-28 Arun Aniyan , Kshitij Thorat

Source finding is one of the most challenging tasks in upcoming radio continuum surveys with SKA precursors, such as the Evolutionary Map of the Universe (EMU) survey of the Australian SKA Pathfinder (ASKAP) telescope. The resolution,…

Instrumentation and Methods for Astrophysics · Physics 2022-12-07 S. Riggi , D. Magro , R. Sortino , A. De Marco , C. Bordiu , T. Cecconello , A. M. Hopkins , J. Marvil , G. Umana , E. Sciacca , F. Vitello , F. Bufano , A. Ingallinera , G. Fiameni , C. Spampinato , K. Zarb Adami

The convolution neural nets (conv nets) have achieved a state-of-the-art performance in many applications of image and video processing. The most recent studies illustrate that the conv nets are fragile in terms of recognition accuracy to…

Computer Vision and Pattern Recognition · Computer Science 2019-10-25 Sergey Tarasenko , Fumihiko Takahashi

We introduce a U-net model for 360{\deg} acoustic source localization formulated as a spherical semantic segmentation task. Rather than regressing discrete direction-of-arrival (DoA) angles, our model segments beamformed audio maps (azimuth…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-30 Belman Jahir Rodriguez , Sergio F. Chevtchenko , Marcelo Herrera Martinez , Yeshwanth Bethi , Saeed Afshar

The Wide-field Infrared Survey Explorer (WISE) has detected hundreds of millions of sources over the entire sky. However, classifying them reliably is a great challenge due to degeneracies in WISE multicolor space and low detection levels…

Instrumentation and Methods for Astrophysics · Physics 2023-07-12 Guiyu Zhao , Bo Qiu , A-Li Luo , Xiaoyu Guo , Lin Yao , Kun Wang , Yuanbo Liu

In our work, we examine, for the first time, the possibility of fast and efficient source localization directly from the uvobservations, omitting the recovering of the dirty or clean images. We propose a deep neural network-based framework…

Instrumentation and Methods for Astrophysics · Physics 2023-06-21 O. Taran , O. Bait , M. Dessauges-Zavadsky , T. Holotyak , D. Schaerer , S. Voloshynovskiy