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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。
A remote sensing image field control point automatic extraction method is proposed. By using the edge discriminant method, the candidate control points are extracted from the edge binary image, and the control points are weighted and weighted to improve the accuracy to sub-pixels level.