基于ArcGIS的影像数据坐标系转换与影像服务裁切功能的实现

Implementation of Image Data Coordinate System Conversion and Image Service Clipping Function Based on ArcGIS

针对工程实践中影像数据坐标系转换以及线上裁切的需求,基于对坐标系转换模型的理论研究和影像数据线上裁切方法的深入探索,采用平面四参数模型对影像数据进行平面坐标系转换,采用ArcGIS Server SOE技术对影像服务进行扩展开发的方法满足影像数据线上裁切需求,利用Arc Map 10.1作为数据处理平台,成功对沈阳市2013、2015和2017年的影像数据实现平面坐标系向CGCS2000的转换,利用Visual Studio 2010和ArcGIS10.1作为开发平台,扩展开发影像服务的功能接口,实现了影像数据的在线裁切。

Aiming at the demand of coordinate system conversion and online clipping for image data in engineering practice,on the basis of theoretical research on coordinate system conversion models and deep exploration of image data online clipping,we adopt planar four parameter model to conduct planar coordinate transformation of image data,and extend development of image services based on ArcGIS Server SOE technology to meet the requirements of image data online clipping. By using Arc Map 10.1 as data processing platform,we convert image data of Shenyang to CGCS2000 in 2013,2015 and 2017. By using Visual Studio 2010 and ArcGIS 10.1 as development platform,we develop extensional functional interface of image services to realize image data online clipping.