摘要
如何打破行业壁垒,实现数据共享一直是GIS研究的关键,空间数据集成与空间融合技术是实现数据共享的主要途径。具体到不同的空间数据(矢量数据和栅格数据)类型,融合的方式也不同。对栅格数据融合的几种常用算法进行了探讨,针对数字地形图与遥感图像的融合,改进了几种常用算法,对各种算法的融合效果给出评定,展望了数据融合的发展方向,并指出还存在的问题。
How to break the professional bastions, realizing data sharing has been the key of GIS, spatial data integration and space data fusion are the main approaches. Respecting to different spatial data types, there are different fusion ways. The thesis probes the usually algorithms of the grid data integration, aiming at integration of topographic map and remote sensing image, improves the usual algorithms, assesses the result of every algorithm, expects the development direction of Data fusion, and puts forward the existent questions.
出处
《海洋测绘》
2007年第5期14-18,共5页
Hydrographic Surveying and Charting
关键词
数据融合
栅格数据融合
遥感
HIS变换
乘积变换
data fusion
grid data fusion
remote sensing
HIS transformation
multiplication transformation
