中文
相关论文

相关论文: Understanding the Impact of Semi-numeric Reionizat…

200 篇论文

Automated design methods for convolutional neural networks (CNNs) have recently been developed in order to increase the design productivity. We propose a neuroevolution method capable of evolving and optimizing CNNs with respect to the…

神经与进化计算 · 计算机科学 2019-10-16 Filip Badan , Lukas Sekanina

Convolutional neural networks (CNNs) are extensively beneficial for medical image processing. Medical images are plentiful, but there is a lack of annotated data. Transfer learning is used to solve the problem of lack of labeled data and…

计算机视觉与模式识别 · 计算机科学 2020-02-11 Sajjad Abbasi , Mohsen Hajabdollahi , Nader Karimi , Shadrokh Samavi , Shahram Shirani

Discriminative learning based on convolutional neural networks (CNNs) aims to perform image restoration by learning from training examples of noisy-clean image pairs. It has become the go-to methodology for tackling image restoration and…

计算机视觉与模式识别 · 计算机科学 2020-09-01 Junaid Malik , Serkan Kiranyaz , Moncef Gabbouj

The Epoch of Reionization (EoR), when the first luminous sources ionised the intergalactic medium, represents a new frontier in cosmology. The Square Kilometre Array Observatory (SKAO) will offer unprecedented insights into this era through…

Convolutional Neural Network(CNN) has been widely used for image recognition with great success. However, there are a number of limitations of the current CNN based image recognition paradigm. First, the receptive field of CNN is generally…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Dong-Qing Zhang

Identity recognition from ear images is an active field of research within the biometric community. The ability to capture ear images from a distance and in a covert manner makes ear recognition technology an appealing choice for…

计算机视觉与模式识别 · 计算机科学 2019-02-04 Žiga Emeršič , Dejan Štepec , Vitomir Štruc , Peter Peer

There are several planned and ongoing experiments designed to explore the Epoch of Reionization (EoR), the pivotal period during which the gas in the intergalactic medium went from being entirely neutral to almost entirely ionized. These…

星系天体物理 · 物理学 2010-08-27 Vibor Jelic

One of the critical challenges facing imaging studies of the 21-cm signal at the Epoch of Reionization (EoR) is the separation of astrophysical foreground contamination. These foregrounds are known to lie in a wedge-shaped region of…

宇宙学与河外天体物理 · 物理学 2024-02-27 Samuel Gagnon-Hartman , Yue Cui , Jacob Kennedy , Adrian Liu , Siamak Ravanbakhsh

An important part of breast cancer staging is the assessment of the sentinel axillary node for early signs of tumor spreading. However, this assessment by pathologists is not always easy and retrospective surveys often requalify the status…

定量方法 · 定量生物学 2024-04-30 Eric Bonnet

Observations are beginning to constrain the history of the epoch of reionization (EoR). Modeling the reionization process is indispensable to interpret the observations, to infer the properties of ionizing sources, and to probe the various…

宇宙学与河外天体物理 · 物理学 2023-06-07 Runyu Zhu , Yidong Xu , Bin Yue , Xuelei Chen

Interferometric Synthetic Aperture Radar (InSAR) imagery for estimating ground movement, based on microwaves reflected off ground targets is gaining increasing importance in remote sensing. However, noise corrupts microwave reflections…

图像与视频处理 · 电气工程与系统科学 2020-01-22 Subhayan Mukherjee , Aaron Zimmer , Navaneeth Kamballur Kottayil , Xinyao Sun , Parwant Ghuman , Irene Cheng

Several image processing tasks, such as image classification and object detection, have been significantly improved using Convolutional Neural Networks (CNN). Like ResNet and EfficientNet, many architectures have achieved outstanding…

计算机视觉与模式识别 · 计算机科学 2022-01-11 Claudio Filipi Gonçalves dos Santos , João Paulo Papa

The light-cone (LC) effect causes the Epoch of Reionization (EoR) 21-cm signal $T_{\rm b} (\hat{\bf{n}}, \nu)$ to evolve significantly along the line of sight (LoS) direction $\nu$. In the first part of this paper, we present a method to…

宇宙学与河外天体物理 · 物理学 2017-12-12 Rajesh Mondal , Somnath Bharadwaj , Kanan K. Datta

We extend 21CMMC, a Monte Carlo Markov Chain sampler of 3D reionisation simulations, to perform parameter estimation directly on 3D light-cones of the cosmic 21cm signal. This brings theoretical analysis closer to the tomographic 21-cm…

宇宙学与河外天体物理 · 物理学 2018-04-11 Bradley Greig , Andrei Mesinger

Interferometry of the cosmic 21-cm signal is set to revolutionize our understanding of the Epoch of Reionization (EoR), eventually providing 3D maps of the early Universe. Initial detections however will be low signal-to-noise, limited by…

宇宙学与河外天体物理 · 物理学 2016-04-20 Emanuele Sobacchi , Andrei Mesinger , Bradley Greig

Convolutional Neural Network (CNN) is a popular model in computer vision and has the advantage of making good use of the correlation information of data. However, CNN is challenging to learn efficiently if the given dimension of data or…

量子物理 · 物理学 2020-09-22 Seunghyeok Oh , Jaeho Choi , Joongheon Kim

Many imaging modalities involve reconstruction of unknown objects from collections of noisy projections related by random rotations. In one of these modalities, cryogenic electron microscopy (cryo-EM), the extremely low signal-to-noise…

图像与视频处理 · 电气工程与系统科学 2025-10-16 Joakim Andén , Justus Sagemüller

Image denoising techniques are essential to reducing noise levels and enhancing diagnosis reliability in low-dose computed tomography (CT). Machine learning based denoising methods have shown great potential in removing the complex and…

计算机视觉与模式识别 · 计算机科学 2017-08-29 Dufan Wu , Kyungsang Kim , Georges El Fakhri , Quanzheng Li

The Minkowski Functionals (MFs), a set of topological summary statistics, have emerged as a powerful tool for extracting non-Gaussian information. We investigate the prospect of constraining the reionization parameters using the MFs of the…

宇宙学与河外天体物理 · 物理学 2024-10-10 Kangning Diao , Zhaoting Chen , Xuelei Chen , Yi Mao

A wide variety of orthographic coding schemes and models of visual word identification have been developed to account for masked priming data that provide a measure of orthographic similarity between letter strings. These models tend to…

计算机视觉与模式识别 · 计算机科学 2023-03-15 Dong Yin , Valerio Biscione , Jeffrey Bowers