张力,孙钰珊,杜全叶,韩晓霞

• 1:中国测绘科学研究院摄影测量与遥感所

摘要(Abstract)：

针对国产光学卫星影像的特点,该文介绍一种适用于超大规模立体/单景覆盖的多源高分辨率卫星影像的全自动连接点、参考控制点匹配及精准几何信息(DSM/DEM)提取方法。该方法引入精度已知/精度可验证的参考地理数据作为几何约束,采用由粗到精的多层金字塔逐级影像匹配策略进行影像连接点和参考控制点的自动提取,并实现超大规模影像整体联合区域网平差处理,精化定向参数;结合半全局匹配算法(SGM)与基于物方几何约束的多影像相关匹配算法(GC3)完成多角度多视影像匹配及密集点云的自动提取,并利用已有DEM对密集匹配的DSM中的云遮挡区域和大面积水域进行修补,完成精准几何信息提取并自动生成高精度DSM/DEM/DOM影像产品。最后,利用多组典型实验区的国产高分辨率光学卫星影像数据验证了本文方法的适用性、可靠性和精度,结果满足卫星影像几何定位精度及DSM/DEM/DOM生产要求。

关键词(KeyWords)： 多源国产卫星影像;影像匹配;几何信息提取;DEM/DOM生成

Abstract:

Keywords:

基金项目(Foundation): 自然资源部基础测绘项目(B18889,A1915);; DAAD战略合作伙伴与专题研究合作网络项目(57421148)

作者(Author): 张力,孙钰珊,杜全叶,韩晓霞

DOI: 10.16251/j.cnki.1009-2307.2019.06.014

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