王恺,陈世平,曾湧

• 1:北京空间机电研究所
• 2:中国空间技术研究院
• 3:中国资源卫星应用中心

摘要(Abstract)：

针对在遥感相机检校、三维重建、信息提取、变化监测等应用中,都需要在影像中每隔若干个点、甚至是逐点寻找密集同名点的情况,该文将基于特征的方法和基于模板的方法相结合,提出一种新的高精度的密集同名点提取方法。将参考影像降采样为与遥感影像同一分辨率,然后使用SIFT算法提取粗精度同名点,建立全局几何模型,使用其将遥感影像每个像元及其邻域投影到参考影像,并以其为模板,应用优化相位匹配法获取高精度同名点。经实验验证,只要遥感影像和参考影像中相应区域的景物变化不大,该文方法可以有效地确定密集的高精度同名点对。

关键词(KeyWords)： 密集同名点;亚像元同名点;尺度不变特征变换;相位匹配;数字摄影测量

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 王恺,陈世平,曾湧

DOI: 10.16251/j.cnki.1009-2307.2015.04.031

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