地理国情监测控制点点位索引影像自动化生产研究  

Automatic Production of Control Point Index Image for Geographic National Conditions Monitoring

作　　者：高磊[1,2] GAO Lei(Jiangsu Provincial Surveying and Mapping Engineering Institute,Nanjing 210013,China;Key Laboratory of Satellite Mapping Technology and Applications,National Administration of Surveying,Mapping and Geoinformation,Nanjing 210013,China)

机构地区：[1]江苏省测绘工程院 [2]卫星测绘技术与应用国家测绘地理信息局重点实验室

出　　处：《测绘与空间地理信息》2019年第9期68-70,共3页Geomatics & Spatial Information Technology

基　　金：江苏省“十三五”省级基础测绘“地理国情数据成果年度更新影像处理”项目(苏S测20180402)资助

摘　　要：控制点点位索引影像是地理国情监测影像数据成果的重要组成部分,生产规范对其组织形式、表示方式、筛选原则等做了具体的技术要求。从单位生产实践出发,通过ArcGIS提供的Arcpy二次开发包,对正射校正工程中记录的控制点信息进行整理,构建从原始全色影像上进行裁剪并添加十字丝的自动化技术流程。结果显示,像控点十字丝定位准确,索引影像成果符合规范要求,生产效率大幅度地提高。控制点点位索引影像自动化生产与实际生产工作紧密结合,技术可行,可为同类型的项目提供一定的借鉴。The control point index image is an important part of the results of geographic national conditions monitoring image data.The production specification has specific technical requirements for its organizational form, presentation method and choosing principle.Starting from the production practice, through the Arcpy secondary development kit provided by ArcGIS, the control point information recorded in the orthorectification project is organized, and the automation technology flow for cutting and adding the crosshair from the original panchromatic image is constructed.The results show that the position of the crosshairs of the control points is accurate, the index image results meet the requirements of the specifications, and the production efficiency is greatly improved.The control point index image automation production is closely integrated with the actual production work, and the technology is feasible, which can provide some reference for the same type of project.

关 键 词：地理国情 控制点 索引影像 自动化 

分 类 号：P282.3[天文地球—地图制图学与地理信息工程]