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相关论文: Validation & Testing of the CROBAR 3D Coronal Reco…

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We present an extension of the Coronal Reconstruction Onto B-Aligned Regions (CROBAR) method to Linear Force Free Field (LFFF) extrapolations, and apply it to the reconstruction of a set of AIA, MDI, and STEREO EUVI data. The results…

太阳与恒星天体物理 · 物理学 2026-01-29 Joseph Plowman , Daniel B. Seaton , Amir Caspi , J. Marcus Hughes , Matthew J. West

Coronal waves are large-scale disturbances often driven by coronal mass ejections (CMEs). We investigate a spectacular wave event on 7 March 2012, which is associated with an X5.4 flare (SOL2012-03-07). By using a running center-median…

太阳与恒星天体物理 · 物理学 2020-11-04 Li Feng , Lei Lu , Bernd Inhester , Joseph Plowman , Beili Ying , Marilena Mierla , Matthew J. West , Weiqun Gan

Tomography is a powerful technique for recovering the three-dimensional (3D) density structure of the global solar corona. In this work, we present an improved tomography method by introducing radial weighting in the regularization term.…

太阳与恒星天体物理 · 物理学 2025-03-31 Tongjiang Wang , C. Nick Arge , Shaela I. Jones

The recent application of Fourier Based Iterative Reconstruction Method (FIRM) has made it possible to achieve high-quality 2D images from a fan beam Computed Tomography (CT) scan with a limited number of projections in a fast manner. The…

图像与视频处理 · 电气工程与系统科学 2020-06-24 N. Teyfouri , H. Rabbani , R. Kafieh , Iraj Jabbari

Conventional 2-D scanning electron microscopy (SEM) is commonly used to rapidly and qualitatively evaluate membrane pore structure. Quantitative 2-D analyses of pore sizes can be extracted from SEM, but without information about 3-D spatial…

Measurement of the coronal magnetic field is a crucial ingredient in understanding the nature of solar coronal phenomena at all scales. We employed STEREO/COR1 data obtained during a deep minimum of solar activity in February 2008…

太阳与恒星天体物理 · 物理学 2014-05-06 M. Kramar , V. Airapetian , Z. Mikić , J. Davila

Observations from the two STEREO-spacecraft give us for the first time the possibility to use stereoscopic methods to reconstruct the 3D solar corona. Classical stereoscopy works best for solid objects with clear edges. Consequently an…

太阳与恒星天体物理 · 物理学 2015-05-14 T. Wiegelmann , B. Inhester , L. Feng

We present a hybrid combination of forward and inverse reconstruction methods using multiple observations of a coronal mass ejection (CME) to derive the 3D 'true' Height-Time plots for individual CME components. We apply this hybrid method…

太阳与恒星天体物理 · 物理学 2015-05-13 Alex Antunes , Arnaud Thernisien , Amos Yahil

The purpose of this study is to present a new semi-automated methodology for three-dimensional (3D) reconstruction of coronary arteries and their plaque morphology using Computed Tomography Angiography (CTA) images. The methodology is…

Using recent data for the photosphere-chromosphere region of the solar atmosphere the magnetic reconnection in tripolar geometry has been investigated through the procedure of Sturrock (1999). Particular attention has been given to the…

天体物理学 · 物理学 2007-05-23 Kumud Pandey , Udit Narain , N. K. Lohani

To understand its evolution and the effects of its eruptive events, the Sun is permanently monitored by multiple satellite missions. The optically-thin emission of the solar plasma and the limited number of viewpoints make it challenging to…

We present PHORHUM, a novel, end-to-end trainable, deep neural network methodology for photorealistic 3D human reconstruction given just a monocular RGB image. Our pixel-aligned method estimates detailed 3D geometry and, for the first time,…

计算机视觉与模式识别 · 计算机科学 2022-04-20 Thiemo Alldieck , Mihai Zanfir , Cristian Sminchisescu

Background: RSN whole-heart CMRA is a technique that estimates and corrects for respiratory motion. However, RSN has been limited to a 1D rigid correction which is often insufficient for patients with complex respiratory patterns. The goal…

图像与视频处理 · 电气工程与系统科学 2020-10-28 Christopher W Roy , John Heerfordt , Davide Piccini , Giulia Rossi , Anna Giulia Pavon , Juerg Schwitter , Matthias Stuber

An accurate planar visualization (curved planar reformation - CPR) of intracranial arteries is mandatory for an improved luminal and mural assessment especially in low resolution Magnetic Resonance Imaging (MRI) data sets acquired in…

A three-dimensional (3D) reconstruction of the 2007, May 20 partial-halo Coronal Mass Ejection (CME) has been made using STEREO/EUVI and STEREO/COR1 coronagraphic images. The trajectory and kinematics of the erupting filament have been…

太阳与恒星天体物理 · 物理学 2015-06-19 Roberto Susino , Alessandro Bemporad , Sergio Dolei

Recently, we developed the Correlation-Aided Reconstruction (CORAR) method to reconstruct solar wind inhomogeneous structures, or transients, using dual-view white-light images (Li et al. 2020; Li et al. 2018). This method is proved to be…

太阳与恒星天体物理 · 物理学 2022-09-14 Shaoyu Lyu , Yuming Wang , Xiaolei Li , Jingnan Guo , Chuanbing Wang , Quanhao Zhang

The space mission STEREO will provide images from two viewpoints. An important aim of the STEREO mission is to get a 3D view of the solar corona. We develop a program for the stereoscopic reconstruction of 3D coronal loops from images taken…

天体物理学 · 物理学 2008-11-26 Thomas Wiegelmann , Bernd Inhester

The acquisition of multi-view information of cells is essential for accurate 3D reconstruction of their structures. Rotational manipulation of cells has emerged as an effective technique for obtaining such data. However, most reported…

光学 · 物理学 2025-06-10 Yiwei Pan , Yijing Wu , Ziqiang Wang , Yinmei Li , Lei Gong

Measurement of the coronal magnetic field is a crucial ingredient in understanding the nature of solar coronal dynamic phenomena at all scales. We employ STEREO/COR1 data obtained near maximum of solar activity in December 2012 (Carrington…

太阳与恒星天体物理 · 物理学 2016-04-05 Maxim Kramar , Vladimir Airapetian , Haosheng Lin

We describe a new algorithm for reconstruction of Differential Emission Measures (DEMs) in the solar corona. Although a number of such algorithms currently exist, they can have difficulty converging for some cases, and can be complex, slow,…

太阳与恒星天体物理 · 物理学 2020-12-11 Joseph Plowman , Amir Caspi
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