中文
相关论文

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

200 篇论文

Context: The Wilson depression is the difference in geometric height of unit continuum optical depth between the sunspot umbra and the quiet Sun. Measuring the Wilson depression is important for understanding the geometry of sunspots.…

太阳与恒星天体物理 · 物理学 2018-11-07 B. Löptien , A. Lagg , M. van Noort , S. K. Solanki

A growing body of work studies Blindspot Discovery Methods ("BDM"s): methods that use an image embedding to find semantically meaningful (i.e., united by a human-understandable concept) subsets of the data where an image classifier performs…

机器学习 · 计算机科学 2023-07-13 Gregory Plumb , Nari Johnson , Ángel Alexander Cabrera , Ameet Talwalkar

Far-side images of solar active regions have become one of the routine products of helioseismic observations, and are of importance for space weather forecasting by allowing the detection of sunspot regions before they become visible on the…

天体物理学 · 物理学 2009-11-13 Thomas Hartlep , Junwei Zhao , Nagi N. Mansour , Alexander G. Kosovichev

Excessive or inadequate exposure to ultraviolet light (UV) is harmful to health and causes osteoporosis, colon cancer, and skin cancer. The UV Index, a standard scale of UV light, tends to increase in sunny places and sharply decrease in…

信号处理 · 电气工程与系统科学 2022-08-19 Yuuki Nishiyama , Kosuke Hatai , Kota Tsubouchi , Kaoru Sezaki

Automatic assessment and understanding of facial skin condition have several applications, including the early detection of underlying health problems, lifestyle and dietary treatment, skin-care product recommendation, etc. Selfies in the…

Exposure correction is one of the fundamental tasks in image processing and computational photography. While various methods have been proposed, they either fail to produce visually pleasing results, or only work well for limited types of…

计算机视觉与模式识别 · 计算机科学 2019-10-31 Qing Zhang , Yongwei Nie , Wei-Shi Zheng

We suggest a method that evaluates the horizontal velocity in the solar photosphere with easily observable values using a combination of neural network and radiative magnetohydrodynamics simulations. All three-component velocities of…

太阳与恒星天体物理 · 物理学 2023-09-06 Hiroyuki Masaki , Hideyuki Hotta , Yukio Katsukawa , Ryohtaroh T. Ishikawa

To deepen the analysis of the photometric properties of the umbra of a sunspot, we study proper motions of small features such as umbral dots (UDs) inside a single sunspot observed by the Solar Optical Telescope of Hinode close to the disk…

太阳与恒星天体物理 · 物理学 2018-07-17 Hadis Goodarzi , Serge Koutchmy , Ali Adjabshirizadeh

The proposed method uses live image footage which, based on calculations of pixel motion, decides whether or not an object is in the blind-spot. If found, the driver is notified by a sensory light or noise built into the vehicle's CPU. The…

计算机视觉与模式识别 · 计算机科学 2016-03-25 Stephen Yu , Mike Wu

Sun Glare widely exists in the images captured by unmanned ground and aerial vehicles performing in outdoor environments. The existence of such artifacts in images will result in wrong feature extraction and failure of autonomous systems.…

机器人学 · 计算机科学 2021-10-14 Mahdi Abolfazli Esfahani , Han Wang

Instance shadow detection, crucial for applications such as photo editing and light direction estimation, has undergone significant advancements in predicting shadow instances, object instances, and their associations. The extension of this…

计算机视觉与模式识别 · 计算机科学 2024-09-25 Zhenghao Xing , Tianyu Wang , Xiaowei Hu , Haoran Wu , Chi-Wing Fu , Pheng-Ann Heng

We present a comparison of two methods of fitting solar-like variability to increase the efficiency of detection of Earth-like planetary transits across the disk of a Sun-like star. One of them is the harmonic fitting method that coupled…

天体物理学 · 物理学 2009-11-13 A. S. Bonomo , A. F. Lanza

Accurate cell detection and counting in the image-based ELISpot and FluoroSpot immunoassays is a challenging task. Recently proposed methodology matches human accuracy by leveraging knowledge of the underlying physical process of these…

图像与视频处理 · 电气工程与系统科学 2019-04-23 Pol del Aguila Pla , Vidit Saxena , Joakim Jaldén

We present a method to incorporate global orientation information from the sun into a visual odometry pipeline using only the existing image stream, where the sun is typically not visible. We leverage recent advances in Bayesian…

机器人学 · 计算机科学 2019-08-20 Valentin Peretroukhin , Lee Clement , Jonathan Kelly

Previous helioseismology of sunspots has been sensitive to both the structural and magnetic aspects of sunspot structure. We aim to develop a technique that is insensitive to the magnetic component so the two aspects can be more readily…

太阳与恒星天体物理 · 物理学 2018-06-07 T. L. Duvall , P. S. Cally , D. Przybylski , K. Nagashima , L. Gizon

Perception systems, especially cameras, are the eyes of automated driving systems. Ensuring that they function reliably and robustly is therefore an important building block in the automation of vehicles. There are various approaches to…

计算机视觉与模式识别 · 计算机科学 2024-07-15 Philipp Rigoll , Laurenz Adolph , Lennart Ries , Eric Sax

Umbral dots (UDs) are transient, bright features observed in the umbral region of a sunspot. We study the physical properties of UDs observed in sunspots of different sizes. The aim of our study is to relate the physical properties of…

太阳与恒星天体物理 · 物理学 2018-03-14 Rahul Yadav , Rohan E. Louis , Shibu K. Mathew

One of the goals of machine learning is to eliminate tedious and arduous repetitive work. The manual and semi-automatic classification of millions of hours of solar wind data from multiple missions can be replaced by automatic algorithms…

空间物理 · 物理学 2020-08-20 Jorge Amaya , Romain Dupuis , Maria Elena Innocenti , Giovanni Lapenta

Shadows are common aspect of images and when left undetected can hinder scene understanding and visual processing. We propose a simple yet effective approach based on reflectance to detect shadows from single image. An image is first…

计算机视觉与模式识别 · 计算机科学 2018-07-13 Sri Kalyan Yarlagadda , Fengqing Zhu

The scientific study of the Solar System's minor bodies ultimately starts with a search for those bodies. This chapter presents a review of the use of machine learning techniques to find moving objects, both natural and artificial, in…

地球与行星天体物理 · 物理学 2024-05-13 Wesley C. Fraser