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相关论文: Automated Sunspot Detection as an Alternative to V…

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A typical sunspot, as seen in white-light intensity images, has a two part structure: a dark umbra and a lighter penumbra. Such distinction primarily arises due to the different orientations of magnetic fields in these two regions. In this…

太阳与恒星天体物理 · 物理学 2019-05-17 Bibhuti Kumar Jha , Sudip Mandal , Dipankar Banerjee

We propose and demonstrate a preliminary traffic sensing system based on the widely distributed LED street lights. The system utilizes and discriminates the photoelectric responses of the LEDs to sunlight when a vehicle moves through the…

其他计算机科学 · 计算机科学 2018-10-23 Weicheng Xue , Shangbin Li , Zhengyuan Xu

This work studies the problem of panoptic symbol spotting, which is to spot and parse both countable object instances (windows, doors, tables, etc.) and uncountable stuff (wall, railing, etc.) from computer-aided design (CAD) drawings.…

计算机视觉与模式识别 · 计算机科学 2024-01-22 Wenlong Liu , Tianyu Yang , Yuhan Wang , Qizhi Yu , Lei Zhang

The rotational profile of the Sun is considered to be one of the key inputs in a solar dynamo model. Hence, precise and long-term measurements of this quantity is important for our understanding of solar magnetism and its variability. In…

太阳与恒星天体物理 · 物理学 2021-02-02 Bibhuti Kumar Jha , Aditya Priyadarshi , Sudip Mandal , Subhamoy Chaterjee , Dipankar Banerjee

Instance shadow detection is a brand new problem, aiming to find shadow instances paired with object instances. To approach it, we first prepare a new dataset called SOBA, named after Shadow-OBject Association, with 3,623 pairs of shadow…

计算机视觉与模式识别 · 计算机科学 2020-06-23 Tianyu Wang , Xiaowei Hu , Qiong Wang , Pheng-Ann Heng , Chi-Wing Fu

Fast, non-destructive and on-site quality control tools, mainly high sensitive imaging techniques, are important to assess the reliability of photovoltaic plants. To minimize the risk of further damages and electrical yield losses,…

计算机视觉与模式识别 · 计算机科学 2020-10-01 Mathis Hoffmann , Bernd Doll , Florian Talkenberg , Christoph J. Brabec , Andreas K. Maier , Vincent Christlein

Hotspot detection aims at identifying subgroups in the observations that are unexpected, with respect to the some baseline information. For instance, in disease surveillance, the purpose is to detect sub-regions in spatiotemporal space,…

人工智能 · 计算机科学 2014-09-23 Hadi Fanaee-T , João Gama

Sunspot groups often emerge in spatial-temporal clusters, known as nests or complexes of activity. Quantifying how frequently such nesting occurs is important for understanding the organisation and recurrence of solar magnetic fields. We…

太阳与恒星天体物理 · 物理学 2026-03-05 Nurdan Karapinar , Emre Isik , Natalie A. Krivova , Hakan V. Senavci

Many optical measurement techniques, such as light scattering from wavelength-scale particles or detecting motion from a surface with an optical lever, encode information in a complex radiation pattern. Extracting all available information…

量子物理 · 物理学 2025-12-22 Youssef Tawfik , Shan Hao , Thomas P. Purdy

We propose a method for the weakly supervised detection of objects in paintings. At training time, only image-level annotations are needed. This, combined with the efficiency of our multiple-instance learning method, enables one to learn…

计算机视觉与模式识别 · 计算机科学 2020-08-05 Nicolas Gonthier , Yann Gousseau , Said Ladjal , Olivier Bonfait

Cell detection and counting in the image-based ELISPOT and Fluorospot immunoassays is considered a bottleneck. The task has remained hard to automatize, and biomedical researchers often have to rely on results that are not accurate.…

图像与视频处理 · 电气工程与系统科学 2018-10-24 Pol del Aguila Pla , Joakim Jaldén

Accurate detection of the feature points of the projected pattern plays an extremely important role in one-shot 3D reconstruction systems, especially for the ones using a grid pattern. To solve this problem, this paper proposes a grid-point…

计算机视觉与模式识别 · 计算机科学 2020-12-17 Dieuthuy Pham , Minhtuan Ha , Changyan Xiao

There has been significant growth in both utility-scale and residential-scale solar installations in recent years, driven by rapid technology improvements and falling prices. Unlike utility-scale solar farms that are professionally managed…

信号处理 · 电气工程与系统科学 2020-05-26 Menghong Feng , Noman Bashir , Prashant Shenoy , David Irwin , Beka Kosanovic

Asteroids detection is a very important research field that received increased attention in the last couple of decades. Some major surveys have their own dedicated people, equipment and detection applications, so they are discovering Near…

天体物理仪器与方法 · 物理学 2019-01-10 D. Copandean , C. Nandra , D. Gorgan , O. Vaduvescu

Skin detection is the process of discriminating skin and non-skin regions in a digital image and it is widely used in several applications ranging from hand gesture analysis to track body parts and face detection. Skin detection is a…

计算机视觉与模式识别 · 计算机科学 2020-07-14 Alessandra Lumini , Loris Nanni

The sunspots and other solar activity indicators tend to cluster on the surface of the Sun.These clusters very often occur at certain longitudes that persist in time.It is of general interest to find new and simple ways to characterize the…

太阳与恒星天体物理 · 物理学 2015-05-14 J. Pelt , M. J. Korpi , I. Tuominen

Modern astronomical surveys produce millions of light curves of variable sources. These massive data sets challenge the community to create automatic light-curve processing methods for detection, classification, and characterisation of…

天体物理仪器与方法 · 物理学 2023-09-20 Anastasia Lavrukhina , Konstantin Malanchev , Matwey V. Kornilov

Observing and counting sunspots constitutes one of the longest-running scientific experiment, with first observations dating back to Galileo and the invention of the telescope around 1610. Today the sunspot number (SN) time series acts as a…

太阳与恒星天体物理 · 物理学 2020-09-22 Sophie Mathieu , Véronique Delouille , Laure Lefèvre , Christian Ritter , Rainer von Sachs

A high accuracy photometric reduction method is needed to take full advantage of the potential of the transit method for the detection and characterization of exoplanets, especially in deep crowded fields. In this context, we present…

天体物理学 · 物理学 2007-05-23 M. Gillon , P. Magain , V. Chantry , G. Letawe , S. Sohy , F. Courbin , F. Pont , C. Moutou

Plane detection in 3D point clouds is a crucial pre-processing step for applications such as point cloud segmentation, semantic mapping and SLAM. In contrast to many recent plane detection methods that are only applicable on organized point…

计算机视觉与模式识别 · 计算机科学 2019-05-08 Bo Sun , Philippos Mordohai