基于电子地图的港口舰船目标变化检测

Change Detection of Ship Target in Port Based on Electronic Map

摘要:

文章利用电子地图进行配准、提取海岸轮廓线并对其等间距采样,从中提取关键拐角点,并根据条件确定潜在的舰船停靠区域对其规则化。再将不同时相候选区的分割结果进行差分运算,然后将其沿水平垂直方向投影,找到超过平均投影能量的最大区间,判定舰船变化区间。该算法可以避免大范围的无用搜索,提高检测识别算法的效率。

Abstract:

In this paper, electronic map information was applied to registration, the coast contours was extracted and sam.pled equidistant, then the key corner point was extracted from it, potential area of ship docking was identified and regular.ized. And segmentation of the Candidate region image at different phase was operated differential, then projected along thehorizontal and vertical direction, the maximum interval exceeded the average projection energy was found, and the changeregion of ship was determined. The algorithm might avoid the large range of useless search, and improve the efficiency ofdetection.