中文
相关论文

相关论文: Deep Learning application for stellar parameters d…

200 篇论文

Nearly all Statistical Parametric Speech Synthesizers today use Mel Cepstral coefficients as the vocal tract parameterization of the speech signal. Mel Cepstral coefficients were never intended to work in a parametric speech synthesis…

计算与语言 · 计算机科学 2014-10-01 Prasanna Kumar Muthukumar , Alan W. Black

We present fundamental atmospheric parameters (Teff and log g) and metallicities ([M/H]) for 507,513 M dwarf stars using low-resolution spectra (R~1800) from LAMOST DR10. By employing Cycle-StarNet, an innovative domain adaptation approach,…

太阳与恒星天体物理 · 物理学 2025-02-05 Shuo Zhang , Hua-Wei Zhang , Yuan-Sen Ting , Rui Wang , Teaghan O'Briain , Hugh R. A. Jones , Derek Homeier , A-Li Luo

Fingerprint image denoising is a very important step in fingerprint identification. to improve the denoising effect of fingerprint image,we have designs a fingerprint denoising algorithm based on deep encoder-decoder network,which encoder…

计算机视觉与模式识别 · 计算机科学 2020-05-05 Weiya Fan

We aim to prepare the machine-learning ground for the next generation of spectroscopic surveys, such as 4MOST and WEAVE. Our goal is to show that convolutional neural networks can predict accurate stellar labels from relevant spectral…

Deep neural networks provide state-of-the-art performance for image denoising, where the goal is to recover a near noise-free image from a noisy observation. The underlying principle is that neural networks trained on large datasets have…

信息论 · 计算机科学 2019-04-09 Reinhard Heckel , Wen Huang , Paul Hand , Vladislav Voroninski

Deep neural networks are often used to implement powerful generative models for real-world data. Notable applications include image denoising, as well as other classical inverse problems like compressed sensing and super-resolution. To…

机器学习 · 计算机科学 2026-02-23 Ruhui Jin , Dustin G. Mixon , Soledad Villar

Denoising is the essential step for distant supervision based named entity recognition. Previous denoising methods are mostly based on instance-level confidence statistics, which ignore the variety of the underlying noise distribution on…

计算与语言 · 计算机科学 2021-06-18 Wenkai Zhang , Hongyu Lin , Xianpei Han , Le Sun , Huidan Liu , Zhicheng Wei , Nicholas Jing Yuan

Dusty star-forming galaxies (DSFGs) dominate the far-infrared and sub-millimetre number counts, but single-dish surveys suffer from poor angular resolution, complicating mult-wavelength counterpart identification. Prior-driven deblending…

In observational astronomy, noise obscures signals of interest. Large-scale astronomical surveys are growing in size and complexity, which will produce more data and increase the workload of data processing. Developing automated tools, such…

天体物理仪器与方法 · 物理学 2022-09-16 Yunchong Zhang , Brian Nord , Amanda Pagul , Michael Lepori

Hyperspectral imaging has been widely used for spectral and spatial identification of target molecules, yet often contaminated by sophisticated noise. Current denoising methods generally rely on independent and identically distributed noise…

图像与视频处理 · 电气工程与系统科学 2024-09-17 Guangrui Ding , Chang Liu , Jiaze Yin , Xinyan Teng , Yuying Tan , Hongjian He , Haonan Lin , Lei Tian , Ji-Xin Cheng

Most of the classical denoising methods restore clear results by selecting and averaging pixels in the noisy input. Instead of relying on hand-crafted selecting and averaging strategies, we propose to explicitly learn this process with deep…

计算机视觉与模式识别 · 计算机科学 2019-04-16 Xiangyu Xu , Muchen Li , Wenxiu Sun

Image denoising is the process of removing noise from noisy images, which is an image domain transferring task, i.e., from a single or several noise level domains to a photo-realistic domain. In this paper, we propose an effective image…

图像与视频处理 · 电气工程与系统科学 2019-06-05 Xianxu Hou , Hongming Luo , Jingxin Liu , Bolei Xu , Ke Sun , Yuanhao Gong , Bozhi Liu , Guoping Qiu

Microscopy image analysis often requires the segmentation of objects, but training data for this task is typically scarce and hard to obtain. Here we propose DenoiSeg, a new method that can be trained end-to-end on only a few annotated…

计算机视觉与模式识别 · 计算机科学 2020-06-12 Tim-Oliver Buchholz , Mangal Prakash , Alexander Krull , Florian Jug

We have employed feedforward neural networks trained on synthetic spectra in the range 3800 to 5600 AA with resolutions of 2-3 AA to determine metallicities from spectra of about 1000 main-sequence turn-off, subgiant and red giant stars in…

天体物理学 · 物理学 2009-11-10 P. G. Willemsen , M. Hilker , A. Kayser , C. A. L. Bailer-Jones

As a typical data-driven method, deep learning becomes a natural choice for analysing astronomical data nowadays. In this study, we built a deep convolutional neural network to estimate basic stellar parameters $T\rm{_{eff}}$, log g,…

星系天体物理 · 物理学 2022-08-03 Zhuohan Li , Gang Zhao , Yuqin Chen , Xilong Liang , Jingkun Zhao

Stellar astrophysics relies on diverse observational modalities-primarily photometric light curves and spectroscopic data from which fundamental stellar properties are inferred. While machine learning (ML) has advanced analysis within…

太阳与恒星天体物理 · 物理学 2025-10-07 Ilay Kamai , Alex M. Bronstein , Hagai B. Perets

We propose a general framework for denoising high-dimensional measurements which requires no prior on the signal, no estimate of the noise, and no clean training data. The only assumption is that the noise exhibits statistical independence…

计算机视觉与模式识别 · 计算机科学 2019-06-11 Joshua Batson , Loic Royer

Denoising is omnipresent in image processing. It is usually addressed with algorithms relying on a set of hyperparameters that control the quality of the recovered image. Manual tuning of those parameters can be a daunting task, which calls…

图像与视频处理 · 电气工程与系统科学 2024-01-19 Arthur Floquet , Sayantan Dutta , Emmanuel Soubies , Duong Hung Pham , Denis Kouame

We present a deep machine learning algorithm to extract crystal field (CF) Stevens parameters from thermodynamic data of rare-earth magnetic materials. The algorithm employs a two-dimensional convolutional neural network (CNN) that is…

强关联电子 · 物理学 2021-07-14 Noah F. Berthusen , Yuriy Sizyuk , Mathias S. Scheurer , Peter P. Orth

Stellar light curves contain valuable information about oscillations and granulation, offering insights into stars' internal structures and evolutionary states. Traditional asteroseismic techniques, primarily focused on power spectral…

太阳与恒星天体物理 · 物理学 2024-01-19 Jia-Shu Pan , Yuan-Sen Ting , Jie Yu