基于控制点影像库的控制点自动选取初探  

A Preliminary Study on Automatic Selection of GCP Based on Image Database

作　　者：徐硕[1] 江万寿[1] 牛春盈[1] 

机构地区：[1]武汉大学测绘遥感信息工程国家重点实验室,武汉430079

出　　处：《遥感信息》2008年第2期35-38,共4页Remote Sensing Information

基　　金：国家自然基金项目(40671159);国家973计划项目(2006CB701300-G)

摘　　要：地面控制点的快速选取与定位是几何纠正的重要环节之一,鉴于控制点快速、自动选点的迫切需求,国内外已经开始考虑局部性和全国性控制点影像库的建立。本文首先介绍了控制点影像库设计的原则,然后基于影像库进行控制点的自动选取并给出了匹配流程,最后通过实验验证其有效性。Selecting and positioning ground control point is one of the most important parts of geometry correction. Due to the imminent requirement of the fast and automatic control point selection, there are many institutes which have begun the construction of image database of control points. In this paper firstly, the design principle of image database of control points is introduced. Then, the automatic selection of control points based on image database is carried out and the matching flowchart is given. Finally, the effectiveness is proven by experiment.

关 键 词：几何纠正 控制点影像库 整体匹配 HAUSDORFF距离 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]