遥感影像外业控制点自动提取方法

EXTRACTING CONTROL POINT AUTOMATICALLY FROM REMOTE SENSING IMAGE

提出了一种遥感影像外业控制点自动提取方法,利用边判别法对边缘二值影像提取备选控制点,对其进行筛选,并对控制点进行加权中心化,将其精度提高到亚像素级。

First,we use side distinguishing method to extract control point from the edge image.Then,we filter the control point.Finally,we increase the accuracy of the positation to sub-pixel level with the propose method.