摘要
针对线阵推扫式影像外定向中存在的法方程病态问题,提出了采用岭压缩组合估计进行解算,能提高定向精度,并分析了该算法的优点和应用方法。实验证明,该算法性能优异,精度很高。
In order to solve the ill-conditioned problem of the normal equation in the exterior orientation for linear pushbroom imagery, the combined ridge-stein combined estimator (CRS) is presented. After a brief introduction on the CRS estimator, focus is put on its application in the linear pushbroom imagery exterior orientation. Experiments are performed using one 10meter SPOT 1 panchromatic image and one 5meter SPOT 5 panchromatic image. The experimental results show that the CRS estimator is a perfect algorithm for linear pushbroom exterior orientation with high reliability and accuracy.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2004年第10期893-896,共4页
Geomatics and Information Science of Wuhan University
关键词
线阵推扫式影像
外定向
岭-压缩组合估计
linear pushbroom image
exterior orientation
combined ridge-stein estimator
