English
Related papers

Related papers: A Curated Image Parameter Dataset from Solar Dynam…

200 papers

Optoacoustic (OA) imaging is based on excitation of biological tissues with nanosecond-duration laser pulses followed by subsequent detection of ultrasound waves generated via light-absorption-mediated thermoelastic expansion. OA imaging…

Image and Video Processing · Electrical Eng. & Systems 2023-05-04 Firat Ozdemir , Berkan Lafci , Xosé Luís Deán-Ben , Daniel Razansky , Fernando Perez-Cruz

Many algorithms have been proposed to help clinicians evaluate cone density and spacing, as these may be related to the onset of retinal diseases. However, there has been no rigorous comparison of the performance of these algorithms. In…

Medical Physics · Physics 2015-03-13 Letizia Mariotti , Nicholas Devaney

We perform plasma diagnostics, including that of the non-Maxwellian $\kappa$-distributions, in several structures observed in the solar corona by the Extreme-Ultraviolet Imaging Spectrometer (EIS) onboard the Hinode spacecraft. To prevent…

Solar and Stellar Astrophysics · Physics 2022-07-20 Juraj Lörinčík , Jaroslav Dudík , Giulio del Zanna , Elena Dzifčáková , Helen E. Mason

Extracting the temperature of coronal loops is effective in the analysis of solar active region's loops and helps in better understanding of coronal events. To this end, various methods have already been developed like the method developed…

Solar and Stellar Astrophysics · Physics 2019-08-30 Narges Fathalian

The Gaia DR2 sample of short-timescale variable candidates results from the investigation of the first 22 months of Gaia photometry for a subsample of sources at the Gaia faint end. For this exercise, we limited ourselves to the case of…

The observations of solar photosphere from the ground encounter significant problems due to the presence of Earth's turbulent atmosphere. Prior to applying image reconstruction techniques, the frames obtained in most favorable atmospheric…

Instrumentation and Methods for Astrophysics · Physics 2017-12-20 Adam Popowicz , Krystian Radlak , Krzysztof Bernacki , Valeri Orlov

All observations by the aperture photometer (PHT-P) and the far-infrared (FIR) camera section (PHT-C) of ISOPHOT included reference measurements against stable internal fine calibration sources (FCS) to correct for temporal drifts in…

We consider the possibility that the Gaia mission can supply data which will improve the photometric calibration of LSST. After outlining the LSST calibra- tion process and the information that will be available from Gaia, we explore two…

Instrumentation and Methods for Astrophysics · Physics 2016-06-30 Tim Axelrod , Calder Miller

This letter proposes a synthetic aperture radar (SAR) image registration method named Feature-Area Optimization (FAO). First, the traditional area-based optimization model is reconstructed and decomposed into three key but uncertain…

Computer Vision and Pattern Recognition · Computer Science 2016-02-19 Fuqiang Liu , Fukun Bi , Liang Chen , Hao Shi , Wei Liu

We present a comprehensive study of one method for measuring various parameters of global modes of oscillation of the Sun. Using velocity data taken by the Michelson Doppler Imager (MDI), we analyze spherical harmonic degrees l <= 300. Both…

Solar and Stellar Astrophysics · Physics 2015-11-18 Tim Larson , Jesper Schou

Initial access (IA) is a fundamental physical layer procedure in cellular systems where user equipment (UE) detects nearby base station (BS) as well as acquire synchronization. Due to the necessity of using antenna array in millimeter-wave…

Signal Processing · Electrical Eng. & Systems 2019-07-30 Han Yan , Danijela Cabric

We show that the spatial correlation of the intrinsic alignments (IAs) of galaxies, measured in galaxy redshift surveys, offers a precision route to improve the geometrical and dynamical constraints on cosmology. The IA has been treated as…

Cosmology and Nongalactic Astrophysics · Physics 2020-03-25 Atsushi Taruya , Teppei Okumura

The measurement of galaxy morphological parameters from astronomical images features in a wide range of modern analyses, including galaxy evolution and cosmological weak lensing studies. The precision and accuracy of morphological parameter…

Instrumentation and Methods for Astrophysics · Physics 2026-04-23 Samuel Kahn , Ryan Hausen , Hubert Bretonnière , Nicole Drakos , Brant Robertson

A scientific instrument comprised of a global network of millions of independent, connected, remote devices presents unique data acquisition challenges. We describe the software design of a mobile application which collects data from…

Instrumentation and Methods for Astrophysics · Physics 2021-08-11 Jeff Swaney , Chase Shimmin , Daniel Whiteson

NASA's Solar Dynamics Observatory is delivering vector field observations of the full solar disk with unprecedented temporal and spatial resolution; however, the satellite is in a highly inclined geostationary orbit. The relative…

Solar and Stellar Astrophysics · Physics 2016-06-01 P. W. Schuck , Spiro Antiochos , K. D. Leka , Graham Barnes

Substantial efforts have been devoted more recently to presenting various methods for object detection in optical remote sensing images. However, the current survey of datasets and deep learning based methods for object detection in optical…

Computer Vision and Pattern Recognition · Computer Science 2019-12-06 Ke Li , Gang Wan , Gong Cheng , Liqiu Meng , Junwei Han

The Stratospheric Observatory for Infrared Astronomy (SOFIA) is an airborne astronomical observatory comprised of a 2.5-meter telescope mounted in the aft section of a Boeing 747SP aircraft. During routine operations, several instruments…

Instrumentation and Methods for Astrophysics · Physics 2014-12-18 R. Y. Shuping , R. Krzaczek , W. D. Vacca , M. Charcos-Llorens , W. T. Reach , R. Alles , M. Clarke , R. Melchiorri , J. Radomski , S. Shenoy , D. Sandel , E. B. Omelian

Biologically inspired features, such as Gabor filters, result in very high dimensional measurement. Does reducing the dimensionality of the feature space afford advantages beyond computational efficiency? Do some approaches to…

Computer Vision and Pattern Recognition · Computer Science 2016-03-29 Zhuo Hui , Wen-Sheng Chu

We present adaptive-optics (AO) assisted J, H and K/K' images of 8 UCHII regions taken with the ALFA and ADONIS AO systems at Calar Alto and La Silla observatories. The images show details of the stellar population and the near-IR…

The Herschel Common Science System (HCSS) (Ott et al. 2006) (Ott & Science Ground Segment Consortium 2010) is a substantial Java software package, accompanying the development of the Herschel Mission (Pilbratt et al. 2010), supporting all…

Instrumentation and Methods for Astrophysics · Physics 2015-03-17 Bernhard Schulz
‹ Prev 1 8 9 10 Next ›