基于仿射变换的数字影像内定向的误差控制分析  

Error Control Analysis of Interior Orientation for Digital Image Based on Affine Transformation

作　　者：山海涛[1] 张保明[1] 马淑宇[1] 韩东[1] 

机构地区：[1]解放军信息工程大学测绘学院,河南郑州450052

出　　处：《海洋测绘》2006年第1期15-18,共4页Hydrographic Surveying and Charting

摘　　要：数字化摄影测量生产中的误差来源众多,尤其是系统误差常常很突出。针对这个问题,首先深入分析了附有未知数的仿射变换控制模型参数的误差估计,然后利用误差传播定律和误差综合原理,推导出了任意非检控点经仿射变换后输出数据精度的计算公式,并通过数值分析从理论上验证了用四个角框标进行数字影像内定向是最佳误差控制方案。There are many error sources in digital photogrammetry production and especially the system errors are often obvious. In order to solve the problem, firstly this paper analyzes the error estimation of the parameters of affine transformation control model with unknown number. Then it deducts the precision computation formula of the output data of arbitrary un-control point through affine transformation. Finally, with numerical analysis,it validates the interior orientation for digital images with four angle fiducial marks as the optimum error control scheme.

关 键 词：仿射变换 内定向 误差控制 平差模型 

分 类 号：P231.2[天文地球—摄影测量与遥感]