基于直方图不变矩的遥感影像目标匹配方法

Target's matching method for the remote sensing image based on the histogram invariant moments

对遥感影像数据库目标查询的现有方法进行了讨论,针对其不足提出一种由“粗”到“精”的目标匹配方法;以基于边缘特征的直接二值相关法实现目标初始定位,以遥感影像直方图的不变矩及统计特征结合相似度度量完成目标的快速查询;试验结果表明,该方法匹配速度快,精度高,能够满足遥感影像数据库目标快速查询的要求.

The existing methods of the target searching in remote sensing image database are discussed. with their defect in mind, and a target＇s matching method, from “roughness” to “fine” is presented. The primary target location is found by the use of direct two values correlation method based on edge features, and with the invariant moments and statistical features of the image histogram, combined with similarity measurement, the target can be found quickly. Experimental results show that with high matching precision and rapid matching speed, this method can meet the need of rapid target searching in remote sensing image database.