该算法首先通过对边缘密度图进行投影分析进行自顶向下的粗定位，然后在此基础上利用垂直边缘的连接强度进行自底向上的精确定位。
The algorithm first makes a top-down coarse location using the projection analysis of the edge density graph and then makes a bottom-up precise location based on the vertical edge linkage intensity.
为了提高影像匹配的可靠性，提出一种实孔径雷达影像中机场目标精确定位的算法。
In order to improve the dependability of the image matching, the paper presents an algorithm that improves the precision of airport objects position for the real aperture radar images.
因此，用于边缘精确定位的亚像素算法已被广泛研究。
Therefore, the sub-pixel algorithm in edge precise positioning was widely researched.
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