| 紫外极光图像极光卵提取方法及其评估 |
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| 引用本文： | 王倩,孟庆虎,胡泽骏,邢赞扬,梁继民,胡红桥.紫外极光图像极光卵提取方法及其评估[J].极地研究,2011,23(3):168-177. |
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| 作者姓名： | 王倩 孟庆虎 胡泽骏 邢赞扬 梁继民 胡红桥 |
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| 作者单位： | 1. 西安电子科技大学生命科学与技术学院生命科学研究中心
2.国家海洋局极地科学重点实验室，中国极地研究中心
3.西安电子科技大学理学院 |
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| 基金项目： | 国家自然科学基金(40904041,41031064,60872154,40974103); 国家高技术研究发展计划(863计划)(2008AA121703); 海洋公益性行业科研专项(201005017); 国家海洋局青年海洋科学基金(2010613)等资助 |
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| 摘 要： | 有效确定极光卵边界对于研究太阳风-磁层能量耦合过程是非常重要的.本文提出一种新的星载紫外极光图像极光卵边界的提取方法.该方法利用一种基于模糊局部信息C均值聚类方法,对紫外极光图像进行分割,并根据极光卵的环状特性,提取较完整的极光卵极向/赤道向边界.结合DMSP卫星沉降粒子观测数据,分别构建了极向边界和赤道向边界数据库,...
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| 关 键 词： | 极光卵边界提取模糊聚类 |
| 收稿时间： | 2011-03-14 |
A METHOD FOR EXTRACTING AURORAL OVALS IN UVI IMAGES AND ITS EVALUATION |
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| Wang Qian,Meng Qinghu,Hu Zejun,Xing Zanyang,Liang Jimin,Hu Hongqiao.A METHOD FOR EXTRACTING AURORAL OVALS IN UVI IMAGES AND ITS EVALUATION[J].Chinese Journal of Polar Research,2011,23(3):168-177. |
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| Authors: | Wang Qian Meng Qinghu Hu Zejun Xing Zanyang Liang Jimin Hu Hongqiao |
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| Institution: | Wang Qian~1,Meng Qinghu~1,Hu Zejun~2,Xing Zanyang~(2,3),Liang Jimin~1,Hu Hongqiao~2 (1 Research Center of Life Science,School of Life Sciences and Technology,Xidian University,Xi'an 710071,China,2 SOA Key Laboratory for Polar Science,Polar Research Institute of China,Shanghai 200136,3 School of Science,China) |
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| Abstract: | The equatorward and poleward boundaries of the auroral oval are important geophysical parameters that are closely related to the energy coupling between solar wind and magnetosphere.A new method of acquiring these boundaries from the Ultraviolet Auroral Imager(UVI) aboard a polar satellite is developed from an algorithm calledfuzzy local information c-means clustering(FLICM).The method obtains the integrated,real boundaries of the auroral oval.Cross validation results based on the precipitating electron bou... |
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| Keywords: | auroral oval boundary extraction fuzzy clustering |
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