常规的InSAR影像配准方法主要是根据相干系数最大的原则进行配准,在短基线和高相干区域可以取得很好的效果。但该方法未考虑到地形因素的影响,在地形起伏较大的区域容易导致误匹配。为避免该问题,通过考虑地形因素进行InSAR影像配准来提高配准的精度,对地形因素在InSAR影像配准时的影响进行研究,通过比较分析常规配准方法与考虑地形因素配准方法的结果,表明利用地形信息辅助配准能够部分提高配准的精度,尤其是在方位向和失相干区域。 更多还原
【Abstract】 Conventional method of InSAR image coregistration is mainly based on the principle of maximum co-herence,which is sufficient in the short baseline areas and highly correlated regions.However,in the areas with big topographic relief this method will lead to misregistration easily since taking no account the impact of terrain factors.To avoid this problem,a new method considering the terrain factors should be used to enhance the accuracy.Impact of terrain factors on InSAR image co-registration was... 更多还原