摘要
INS/SAR组合导航系统对SAR实时图像与光学参考图像的匹配算法提出了较高的实时性和准确性要求。针对以往直线匹配算法与角点匹配算法的缺陷,首先提取SAR实时图像与光学参考图像直线中的直线与角点特征,然后在干线对粗匹配的基础上利用精确的角点特征进行小参数变化下SAR图像与光学图像的精匹配。经实验验证,该方法实时性与匹配精度高,可较好的应用于INS/SAR组合导航系统的图像匹配中。
INS/SAR integrated navigation system requires the matching method of SAR real-time images and optical ref- erence images to be fast and precise. Aiming at the defects of the line matching method and the corner matching method, the line features and comer features of SAR real-time images and optical reference images line are extracted first, and then the precise comer features are used to perform the precise matching of SAR images and optical images on the basis of main line coarse matching results. Through experiment, the method is verified to have high instantaneity and precision, it can be better applied to the images matching of INS/SAR integrated navigation system.
出处
《四川理工学院学报（自然科学版）》
CAS
2014年第4期48-51,共4页
Journal of Sichuan University of Science & Engineering(Natural Science Edition)
基金
安徽高校省级自然科学研究项目(KJ2012Z410)
关键词
组合导航系统
图像匹配
直线特征
角点特征
integrated navigation system
image matching
line features
corner features
