关键词: 多源遥感数据, 有理函数模型, 可缩放矢量数据, 小波变换, 空间数据网络服务

Abstract:

A strategy that automatically calculates rational polynomial coefficients (RPC) and establishes imaging geometry model with the results of fast image matching based on wavelet transform is proposed to deal with the complexity of different platforms,resolutions or time phases and possible mis-registration.The Oracle spatial database is employed to provide web services,and SVG to render data and response operations on web client side.Experiments shows that location data of high consistency can be achieved the proposed strategy for different remote sensed origins and can serve as a reliable source of web GIS system;by using SVG to transfer and render data of remote sensed data,the Web service achieves resolution independence scaling,browsing,updating or comparing on client-side.

Key words: multi original;RPC;SVG;wavelet transform;geo spatial web service