数字立体像对的自动相对定向

进入90年代,数字摄影测量得到了飞速发展,相继有许多数字摄影测量系统出现。本文对数字摄影测量系统的基础之一——数字相对定向作了理论和实验研究,提出了一种基于特征点组的金字塔结构的自动相对定向方法,即用Fstner算子选择定向点,用金字塔结构影像数据相关定向点,最后用最小二乘相关获取的点位进行相对定向计算。实验证明,该方法是可行的,取得了满意的结果。

AUTOMATICAL RELATIVE ORIENTATION WITH DIGITAL STEREO PAIR

It has developped greatly in digital photogrammery since 1990. There are many digital photogrammetric systems ap- peared. This paper will investigate the digital relative orientation theoretically and experimentally which is basic one of the digital photogrammetric system. In this paper we will advance a automatic digital relative orientation method which bases on sets of feature points and pyramid structure. The method is composed of several steps, that is selecting orientation points with Foostner operator, metching orientation points with pyramid image data and caculating the orientation elements with accurate positions which are aquired with the least square metching methoed. The experiments show that the meteod is feasible and that good results can be aquired with the methoed.