The centroid extraction algorithm of sun based on multi-color model

doi:10.1117/12.2606559

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 月球与深空探测技术研究室

	The centroid extraction algorithm of sun based on multi-color model
	Ma, Ling 2,3; Qiao, Weidong 3; Wang, Hui 1
	2021
会议日期	2021-06-20
会议地点	Beijing, China
关键词	Optimal threshold image segmentation centroid extraction
卷号	12065
DOI	10.1117/12.2606559
英文摘要	This paper proposes a method for extracting the solar centroid based on a multi-color model. The method is based on the three-color models (Lab, HIS, RGB) to segment and extract the color features of the image at the same time, coarsely locate the existence area of the sun target, and filter the obtained results through shape features, etc. We should try our best to optimize algorithm, for which can obtain a precise sun image. It is very important to combine circle center fitting with edge extraction to obtain the coordinate of edge point. What's more, we need to select the edge points to form a sample set of edge points. It is helpful to fit the center of the circle by the least square method. The algorithm is improved to find the center of mass of the sun. By subjective judgment and error analysis evaluation of a large number of results, this method is useful as we expecting for the segmentation and extraction of solar targets. But due to the interference of the shooting angle, light, exposure, weather and other factors when the image was taken, which makes the result of target segmentation not ideal. However, it has little effect on the final centroid extraction result. © 2021 SPIE.
产权排序	1
会议录	AOPC 2021: Optical Sensing and Imaging Technology
会议录出版者	SPIE
语种	英语
ISSN号	9781510650053
内容类型	会议论文
源URL	[http://ir.opt.ac.cn/handle/181661/95661]
专题	西安光学精密机械研究所_月球与深空探测技术研究室
作者单位	1.Science and Technology on Near-Surface Detection Laboratory, Wuxi; 214035, China 2.University of Chinese Academy of Sciences, Beijing; 100049, China; 3.Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China;
推荐引用方式 GB/T 7714	Ma, Ling,Qiao, Weidong,Wang, Hui. The centroid extraction algorithm of sun based on multi-color model[C]. 见:. Beijing, China. 2021-06-20.