Alternative TitleCenter Extraction Method of Multiple and Overlapping Faculae Based on Ellipse Fitting
潘登; 李艳丽; 高东; 郑建华
Source Publication光学学报
Volume40Issue:14Pages:; AR:0253-2239(2020)40:142.0.TX;2-3
Keyword图像处理 中心提取 多光斑 重叠光斑 椭圆拟合 双折射太阳敏感器 image processing center extraction multiple faculae overlapping faculae ellipse fitting birefringence sun sensor
Other AbstractAiming at the problem of multiple and overlapping faculae of the birefringence sun sensor, a high-precision facula center extraction method based on ellipse fitting is proposed. After preprocessing for multiple facula images, different regions of interest are segmented. Then, the overlapping faculae are quickly distinguished and segmented by detecting the shape features of facula in the regions of interest. Finally, the central coordinates of each facula are extracted by ellipse fitting method. The simulation results show that the method can quickly distinguish overlapping faculae, calculate the number and radius of faculae, and extract the sub-pixel central coordinates of the circular and ellipse faculae. This method has no limitation on the size and quantity of faculae, and it can get satisfactory results for incomplete faculae.
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Document Type期刊论文
Affiliation1.潘登, 中国科学院国家空间科学中心
2.中国科学院大学, 北京
3.北京 100190
4.101407, 中国.
5.高东, 中国科学院国家空间科学中心
6.中国科学院大学, 北京
7.北京 100190
8.101407, 中国.
9.郑建华, 中国科学院国家空间科学中心
10.中国科学院大学, 北京
11.北京 100190
12.101407, 中国.
13.李艳丽, 中国科学院国家空间科学中心, 北京 100190, 中国.
14.Pan Deng, National Space Science Center, Chinese Academy of Sciences
15.University of Chinese Academy of Sciences, Beijing
16.Beijing 100190
18.Gao Dong, National Space Science Center, Chinese Academy of Sciences
19.University of Chinese Academy of Sciences, Beijing
20.Beijing 100190
22.Zheng Jianhua, National Space Science Center, Chinese Academy of Sciences
23.University of Chinese Academy of Sciences, Beijing
24.Beijing 100190
26.Li Yanli, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China.
Recommended Citation
GB/T 7714
潘登,李艳丽,高东,等. 基于椭圆拟合的多光斑/重叠光斑中心提取方法[J]. 光学学报,2020,40(14):; AR:0253-2239(2020)40:142.0.TX;2-3.
APA 潘登,李艳丽,高东,&郑建华.(2020).基于椭圆拟合的多光斑/重叠光斑中心提取方法.光学学报,40(14),; AR:0253-2239(2020)40:142.0.TX;2-3.
MLA 潘登,et al."基于椭圆拟合的多光斑/重叠光斑中心提取方法".光学学报 40.14(2020):; AR:0253-2239(2020)40:142.0.TX;2-3.
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