摘要
对于SAR主影像（master）和从影像（slave）的几何配准,文中采用三次基本多项式与斜距-多普勒定位模型,解算出主影像中心像素点在从影像中的同名点,最后得出主从影像中心像素点的初级配准偏移量。本文以上海地区ERS-1影像数据为例,在Matlab环境下,对SAR主从影像的几何配准偏移量进行解算。实验结果表明,采用文中初级配准方法,初级配准相对精度可达到0.1%~0.9%。
Using the cubic polynomial and Slant Range- Doppler positioning model,this paper approached a method of registration of SAR master- slave images. With which,the match point of the main image center pixel points will be calculated out,and the initial registration offset of the master- slave image can be achieved accordingly. An application of the ERS- 1 image data of Shanghai area is taken as an example. The geometric registration offset of SAR master- slave images is computed out in MATLAB. The result shows that by adopting this method of registration,the relative accuracy of initial registration can reach up to 0. 1% ~ 0. 9%.
出处
《测绘与空间地理信息》
2016年第4期28-31,共4页
Geomatics & Spatial Information Technology
基金
江西省自然科学基金项目(20132BAB201049)资助
