节点文献
地理信息库支持下的SAR影像信息提取
SAR Information Extraction Based on Geo-database
【摘要】 在计算机辅助下如何快速的对整景高分辨率SAR影像进行信息提取已成为一个研究热点。将这一问题构建为一个系统工程来进行考虑解决。在SAR影像中,许多目标例如河流、湖泊、主要道路、街区和居民地等地理属性信息在短期内不易发生变化,因此可将这些地理数据集作为先验信息存于数据库中,在随后对SAR影像的信息处理中,可以通过预先建立的地理索引调用相应的地理信息来指导信息提取过程,从而加快整个系统的处理进度,满足实际工作的需求。
【Abstract】 Rapidly exploiting SAR data through computer programming is demanded. The purpose of this research is to present a basic study of rapid information extraction in full SAR scene image of high resolution. The idea is coming from that some ground features such as rivers, lakes, main roads and urban are sustained in a short period of time. So the information such as location, length, and size of those features stored in database in advance are used as the tool of region of interest (ROI) or the criterion of discrimination in order to direct the computer to adopt adaptive method to analysis SAR images.
【Key words】 Information extraction; Synthetic aperture radar(SAR); Geo-database;
- 【文献出处】 遥感技术与应用 ,Remote Sensing Technology and Application , 编辑部邮箱 ,2005年01期
- 【分类号】TN957.51
- 【被引频次】3
- 【下载频次】227