海岸带遥感影像与海图融合显示技术研究

Research on Merging Display of Remote Sensing Image and Nautical Chart in Coastal Zone

针对海岸带遥感影像和海图综合显示问题展开研究,以Osg Earth数字地球平台为基础,将遥感影像和电子海图分别以瓦片服务形式进行加载,通过GPU对数据瓦片进行着色处理,在终端进行数据叠加实现融合显示。实验结果表明,该方法能够实时提供浮雕、黑白、透明度叠加等显示效果,为海岸带遥感影像与海图综合可视化提供了一种可行的技术方案。

In this paper, the research on the merging display of the remote sensing image and the nautical charts in the coastal zone is carried out.Based on the OsgEarth digital earth,the remote sensing image and the electronic nautical chart are loaded as tile service respectively.These tiles are coloring processed by the pixel shader which is a programmable element of the graphics processor.In order to achieve a merging display,we overlay data tiles on the terminal.The experimental results show that the proposed method can achieve the display effects such as relief, black and white’transparency in real time, and can provide a feasible technical scheme for the merging display of coastal remote sensing images and nautical charts.