卫星可见光云图上日食阴影的动态订正  

A DYNAMIC METHOD FOR ELIMINATING ECLIPSE IMPACT ON SATELLITE VISIBLE IMAGERY

作　　者：张乐坚[1] 王振会[1] 裴晓芳[2] 张红[2] 

机构地区：[1]南京信息工程大学KLME,南京210044 [2]南京信息工程大学电子工程系,南京210044

出　　处：《气象科学》2006年第6期633-637,共5页Journal of the Meteorological Sciences

基　　金：国家自然科学基金项目(编号:40475018)资助

摘　　要：分析了日食对可见光云图及其时间序列的影响规律,提出利用相关分析、均值和方差分析以及线性拟合和局部增强等技术进行日食阴影区订正的动态方法。这种方法可以有效地消除阴影,尤其是日全食区域的“黑核”,较好地恢复了云图上云的纹理结构及亮度。Based on the features of an image series obtained with geostationary satellite during solar eclipse, a dynamic method including correlation analysis, statistic technique and local enhancement is suggested for eliminating the shadow caused by solar eclipse. It has been shown that the method works efficiently and,especially in the full eclipse area, the associated＂black core＂ on the image can also be eliminated and the texture and brightness of cloud systems can be recovered.

关 键 词：卫星云图 日食阴影订正 

分 类 号：P427[天文地球—大气科学及气象学]