遥感影像快速入库和元数据提取系统的研究  

RESEARCHS ON THE RAPID IMPORTING OF REMOTE SENSING IMAGES AND METADATA ACQUIRING SYSTEM

作　　者：杜晓[1] 晋佩东[2] 郭大海[2] 王建超[2] 周英杰[2] 

机构地区：[1]国家基础地理信息中心,北京100044 [2]中国国土资源航空物探遥感中心,北京100083

出　　处：《国土资源遥感》2006年第3期80-84,共5页Remote Sensing for Land & Resources

摘　　要：传统的遥感影像数据库一般是把影像数据放置到大型关系数据库中。由于遥感影像数据量较大,因此其读取、传输的时间很长,让操作者难以忍受,影响了系统的快捷易用性。该研究从另外一个角度出发,直接把遥感影像数据体转换为操作系统可以管理的自定义结构体文件,并提取其对应的元数据信息存放到关系数据库中,每个元数据对应一个自定义结构。该方法可以大大提高海量遥感数据的出入库速度,并可以方便快捷地查看其对应的元数据信息。The remote sensing images are usually imported directly into the professional relational database. Nevertheless, for the large data size of images, the time consuming on reading and transmission would be unendurable, which adversely affects the user - friendly function. Starting with a different angle, the authors transform the remote sensing image into the user - defined file which can be handled by the operation system. Metadata information of images can be extracted and stored into the relational database, with each metadata item corresponding to a user- defined file. In this way, the importing and exporting of mass remote sensing data can be greatly speeded up, and the metadata information can be consulted quickly and conveniently.

关 键 词：遥感 影像数据库 元数据 数据组织 信息提取 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]