摘要
地图匹配制导由于具有良好的自主性而成为飞行器导航的一种重要方式。本文首先从飞行器导航的应用出发,对于可用于地图匹配制导的匹配方法的特点进行了分析;然后,提出了一种基于二值边缘新的匹配度量,并给出了基于距离变换的边缘二值图像匹配方法;通过采用航片与卫片、可见光图像与合成孔径雷达图像等所进行的大量实验,结果表明本文所提出的方法比常用的平均绝对算法和归一化互相关算法速度更快。
Map matching becomes an important means of aircraft navigation due to its high autonomousness.In this paper,beginning from the consideration of the application of aircraft navigation,the characteristics of matching approaches which can be used to map matching guidance are analyzed.Then,a new matching measure based on binary edges is proposed and a new natching method based on Distance Transform is given.After a lot of experiments using aerial and satellite photographs as well as optical and SAR images,it is demonstrated that the method proposed in this paper is much better than the common used correlation algorithms,such as MAD algorithm and Normalized Cross Correlation algorithm in speed and registration accuracy.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
1998年第3期72-78,共7页
Journal of Astronautics