摘要
提出了一种干涉合成孔径雷达复图像对的自动配准算法,利用Harris特征点检测算子,完成了特征点检测;根据匹配点对之间最大相关和距离相近的结论设计了匹配算法,进行了特征点对的匹配;首先通过Harris特征点检测算子提取特征点;其次根据提出的匹配算法建立点的对应关系;最后利用两步法完成复图像的亚像元级配准;实验结果表明,该算法具有较高的配准精度。
An automatic feature--based registration algorithm is presented. Feature points are detected by Harris feature points detection operator. The process of feature matching is completed by using the matching algorithm proposed according to the conclusion of the near distance and maximum correlation, the feature points in two images are extracted by Harris feature points detection operator. After the corresponding relations arc established by the proposed matching algorithm, a two--step method is applied to registering with sub--pixel accuracy. Experimental result shows that the proposed method can achieve high accuracy and less computational complexity.
出处
《计算机测量与控制》
CSCD
北大核心
2009年第2期399-401,409,共4页
Computer Measurement &Control
基金
陕西省自然科学基础研究计划资助项目(2006F15)
