| 空间数据库中栅格元数据管理模型的设计与实现 |
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| 引用本文： | 姜平,程昌秀,谢炯,陈荣国.空间数据库中栅格元数据管理模型的设计与实现[J].遥感技术与应用,2012,27(2):315-321. |
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| 作者姓名： | 姜平 程昌秀 谢炯 陈荣国 |
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| 作者单位： | (1.中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室,北京 100101；2.中国科学院研究生院,北京 100049) |
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| 基金项目： | 中国科学院地理科学与资源研究所创新项目“空间查询代价评估模型”，国家863计划项目“高可信地理空间数据库管理系统及其应用”，资源与环境信息系统国家重点实验室自主部署创新研究计划项目 |
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| 摘 要： | 分析了栅格元数据基于文件、关系表和XML的3种存储管理方式,比较它们的优缺点,得出了XML适合描述空间数据库中栅格元数据的层次性、复杂性和面向对象性,并具有可扩展性。在BeyonDB中设计和实现了基于XML的栅格元数据管理模型,并以地球系统科学数据共享平台中DEM数据集为例验证该模型的可扩展性,为空间数据库中海量遥感影像数据的管理研究提供参考。
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| 关 键 词： | 栅格元数据 可扩展 XML 空间数据库 |
Design and Implementation of Manage Model for Raster Metadata in Spatial Database |
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| Jiang Ping,Cheng Changxiu,Xie Jiong,Chen Rongguo.Design and Implementation of Manage Model for Raster Metadata in Spatial Database[J].Remote Sensing Technology and Application,2012,27(2):315-321. |
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| Authors: | Jiang Ping Cheng Changxiu Xie Jiong Chen Rongguo |
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| Affiliation: | (1.State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Nature Resources Research,Chinese Academy of Sciences,Beijing 100101,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | Discussing the three storage models:storage based on traditional file,storage based on the relational table and storage based on XML,and analyzes their advantages and disadvantages.And then,it is a conclusion that,XML approaches to describe the raster metadata’s hierarchy,complexity and object-oriented,and has good extensibility.Raster metadata because of its complexity and hierarchy.In the following sections,we design and implement the management model for raster metadata based on XML in BeyonDB.Finally this paper taked the DEM metadata in Earth System Science Data Sharing Platform as example to verify its extensibility,and it would be a reference for the research on managing massive remote sensing data in spatial database. |
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| Keywords: | Raster metadata Extensible XML Spatial database |
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