航天INSAR复影像对的自动快速匹配

The Matching of Space-borne INSAR Complex Images

针对航天INSAR主、辅影像数据的特点,提出了加大匹配窗口、加大锚点间隔的匹配策略,以提高匹配的可靠性和速度。在匹配过程中,综合利用轨道参数和强度影像金字塔进行粗匹配,并对强度影像采用相关系数与最小二乘相结合的双向匹配方案,实现了自动、快速、高可靠性和高精度的航天INSAR复影像匹配。最后总结了航天INSAR复影像匹配的特点。

It is one of the key techniques of INSAR to match the complex Images. Considering the character of INSAR images, some strategies of image matching such as enlarging the matching windows and the points' space were adopted. And the accurate and reliable doubledirection image matching was realized for spaceborne INSAR complex images automatically and rapidly by rough registration using orbit parameters which adopted the correlative coefficient and the least squares methods. Finally, this paper summarizes the features of INSAR images' matching.