A solution for digital image management in spatial databases  

作　　者：LIUChen MAXiu-jun XIEKun-qing LIUYu FENGXue-bing 

机构地区：[1]CenterforInformationScience,PekingUniversity,Beijing100871,P.R.China [2]InstituteofRemoteSensingandGeographicalinformationSystem,PekingUniversity,Beijing100871,P.R.China [3]BeijingInstituteofSurveyingandMapping,Beijing100038,P.R.China

出　　处：《重庆邮电学院学报（自然科学版）》2004年第5期161-164,共4页Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition)

基　　金：This work is supported by the National High Technology Research and Development Program ofChina(2 0 0 2 AA135 2 30 ) and the Major Project of National Natural Science Foundation of Beijing(4 0 110 0 2 )

摘　　要：Digital Orthographic Map (DOM) can be used in various applications because it contains both image features and terrain information. Spatial database management systems aim at the effective and efficient management of data related to a space, engineering design and so on. Thereby spatial database provides an efficient solution for managing DOM. According to large amounts of the DOM data in storage, a data compression based on wavelet is introduced into the storage. Another strategy to solve this problem is to decompose the raw image into tiles and store the tiles individually as separate tuples. The metadata of DOM can be used to organize and manage spatial information, especially for spatial data sharing and fast locating. A tool for browsing, zooming and querying the DOM data is also designed. We implemented these ideas in SISP(Spatial Information Sharing System) and applied the subsystem into the DOM management of Beijing City, which is an component of the Beijing Spatial Information Infrastructure.Digital Orthographic Map (DOM) can be used in various applications because it contains both image features and terrain information. Spatial database management systems aim at the effective and efficient management of data related to a space, engineering design and so on. Thereby spatial database provides an efficient solution for managing DOM. According to large amounts of the DOM data in storage, a data compression based on wavelet is introduced into the storage. Another strategy to solve this problem is to decompose the raw image into tiles and store the tiles individually as separate tuples. The metadata of DOM can be used to organize and manage spatial information, especially for spatial data sharing and fast locating. A tool for browsing, zooming and querying the DOM data is also designed. We implemented these ideas in SISP(Spatial Information Sharing System) and applied the subsystem into the DOM management of Beijing City, which is an component of the Beijing Spatial Information Infrastructure.

关 键 词：数字图象管理 空间数据库 DOM 空间元数据 图象数据库 

分 类 号：TP392[自动化与计算机技术—计算机应用技术]