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Related papers: Automated Sunspot Detection as an Alternative to V…

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In the 19th century, several astronomers made observations of sunspots, recording their positions and sometimes their areas. These observations were published in the form of extensive tables, but have been unhelpful until now. Three of…

Solar and Stellar Astrophysics · Physics 2013-07-15 R. Casas , J. M. Vaquero

The application of data visualization in public art attracts increasing attention. In this paper, we present the design and implementation of a visualization method for sunlight data collected over a long period of time with an industrial…

Human-Computer Interaction · Computer Science 2024-01-05 Yifan Wang , Nan Li , Suxuan Jiang , Jinlong Xu , Qi Wang , Shaomin Shen , Ning Ding

The search for minor bodies in the solar system promises insights into its formation history. Wide imaging surveys offer the opportunity to serendipitously discover and identify these traces of planetary formation and evolution. We aim to…

Instrumentation and Methods for Astrophysics · Physics 2018-02-21 M. Mahlke , H. Bouy , B. Altieri , G. Verdoes Kleijn , B. Carry , E. Bertin , J. T. A. de Jong , K. Kuijken , J. McFarland , E. Valentijn

Detecting road features is a key enabler for autonomous driving and localization. For instance, a reliable detection of poles which are widespread in road environments can improve localization. Modern deep learning-based perception systems…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Maxime Noizet , Philippe Xu , Philippe Bonnifait

Synthetic Aperture Radar (SAR) is the main instrument utilized for the detection of oil slicks on the ocean surface. In SAR images, some areas affected by ocean phenomena, such as rain cells, upwellings, and internal waves, or discharge…

Computer Vision and Pattern Recognition · Computer Science 2022-04-21 Xiaojian Liu , Yansheng Li

We propose an algorithm that can be used by amateur astronomers to analyze the images acquired during solar eclipses. The proposed algorithm analyzes the image, detects the eclipse and produces results for parameters like magnitude of…

Earth and Planetary Astrophysics · Physics 2012-06-08 Sarrvesh Seethapuram Sridhar , S. Pradeep Sundar , I. Kenny Jackson , P. Kannan

Large constellations of artificial satellites are beginning to interfere with astronomical observing. Visual magnitude measurements of these spacecraft are useful for monitoring and characterizing their brightness. This paper describes the…

Instrumentation and Methods for Astrophysics · Physics 2025-05-14 Anthony Mallama

We present the method of multiplexed imaging designed for astronomical observations of large sky areas in the IR, visible and UV frequencies. Our method relies on the sparse nature of astronomical observations. The method consists of an…

Instrumentation and Methods for Astrophysics · Physics 2014-03-11 Barak Zackay , Avishay Gal-Yam

The optical observations of wide fields of view encounter the problem of selection of best exposure time. As there are usually plenty of objects observed simultaneously, the quality of photometry of the brightest ones is always better than…

Instrumentation and Methods for Astrophysics · Physics 2017-08-04 A. Popowicz , A. R. Kurek

Eye Detection has an important role in the field of biometric identification and known as one method of person's identification. In recent years, many efforts have been done which can detect eye automatically and with different image…

Computer Vision and Pattern Recognition · Computer Science 2016-01-26 Mitra Montazeri , Mahdieh Montazeri , Saeid Saryazdi

Electronically Assisted Astronomy consists in capturing deep sky images with a digital camera coupled to a telescope to display views of celestial objects that would have been invisible through direct observation. This practice generates a…

Instrumentation and Methods for Astrophysics · Physics 2023-11-20 Olivier Parisot , Pierrick Bruneau , Patrik Hitzelberger

We introduce 2D blind spot estimation as a critical visual task for road scene understanding. By automatically detecting road regions that are occluded from the vehicle's vantage point, we can proactively alert a manual driver or a…

Computer Vision and Pattern Recognition · Computer Science 2022-07-11 Taichi Fukuda , Kotaro Hasegawa , Shinya Ishizaki , Shohei Nobuhara , Ko Nishino

Context. Systematic observations of magnetic field strength and polarity in sunspots began at Mount Wilson Observatory (MWO), USA in early 1917. Except for a few brief interruptions, this historical dataset continues till present. Aims. The…

We present an algorithm capable of detecting diffuse, dim sources of any size in an astronomical image. These sources often defeat traditional methods for source finding, which expand regions around points of high intensity. Extended…

Instrumentation and Methods for Astrophysics · Physics 2016-01-05 T. Butler-Yeoman , M. Frean , C. P. Hollitt , D. W. Hogg , M. Johnston-Hollitt

Samuel Heinrich Schwabe made 8486 drawings of the solar disk with sunspots in the period from November 5, 1825 to December 29, 1867. We have measured sunspot sizes and heliographic positions on digitized images of these drawings. A total of…

Solar and Stellar Astrophysics · Physics 2015-06-16 R. Arlt , R. Leussu , N. Giese , K. Mursula , I. G. Usoskin

Coadded astronomical images are created by stacking multiple single-exposure images. Because coadded images are smaller in terms of data size than the single-exposure images they summarize, loading and processing them is less…

Instrumentation and Methods for Astrophysics · Physics 2022-11-18 Mallory Wang , Ismael Mendoza , Cheng Wang , Camille Avestruz , Jeffrey Regier

Sensitive magnetometers have been applied in a wide range of research fields, including geophysical exploration, bio-magnetic field detection, ultralow-field nuclear magnetic resonance, etc. Commonly, magnetometers are directly placed at…

Stellar activity is a potential important limitation to the detection of low mass extrasolar planets with indirect methods (RV, photometry, astrometry). In previous papers, using the Sun as a proxy, we investigated the impact of stellar…

Solar and Stellar Astrophysics · Physics 2015-05-27 A. -M. Lagrange , N. Meunier , M. Desort , F. Malbet

In order to utilize solar imagery for real-time feature identification and large-scale data science investigations of solar structures, we need maps of the Sun where phenomena, or themes, are labeled. Since solar imagers produce…

Solar and Stellar Astrophysics · Physics 2019-10-02 J. Marcus Hughes , Vicki W. Hsu , Daniel B. Seaton , Hazel M. Bain , Jonathan M. Darnel , Larisza Krista

In this paper, we propose SpotNet: a fast, single stage, image-centric but LiDAR anchored approach for long range 3D object detection. We demonstrate that our approach to LiDAR/image sensor fusion, combined with the joint learning of 2D and…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Louis Foucard , Samar Khanna , Yi Shi , Chi-Kuei Liu , Quinn Z Shen , Thuyen Ngo , Zi-Xiang Xia