Metadata mechanism, especially metadata management pattern, is a hotspot in the field of internet information sharing. This paper analyzes the characters and deficiency of current metadata management patterns. Subsequ...Metadata mechanism, especially metadata management pattern, is a hotspot in the field of internet information sharing. This paper analyzes the characters and deficiency of current metadata management patterns. Subsequently, a new metadata management pattern is put forward combined with its application in geograpic information sharing. Aiming at the demands of future Internet information sharing, this pattern is a networkoriented, open and extensible metadata management system. Meanwhile, this management pattern is also a management model of trinity of data users, metadata and datasets. Finally, this paper analyzes the architecture and function flow of this network-oriented integrated metadata management pattern.展开更多
Remote sensing image contains plenty Geo-information. Issuing the Geo-information on the Internet is abasic component of sharing RS Image's Geo-information. The most important of issuing the information is to orga...Remote sensing image contains plenty Geo-information. Issuing the Geo-information on the Internet is abasic component of sharing RS Image's Geo-information. The most important of issuing the information is to organizeand manage RS image data efficiently according to their characteristics and peculiar Geo-information it them. Accord-ing to the properties of multi-sensor, multi-resolution, multi-spectrum and multi-epoch of RS image data and theirpeculiar Geo-information. This paper has constructed a solid index mechanism of "Pyramid, Block, Layer, Epoch"according to the properties of RS image data and established corresponding logic relation databases for RS image data.The Geo-information of RS image data is reorganized via the solid index mechanism and logic database. Finally, theabove ideas are used in setting up an image database system to provide query and search for Geo-information on theInternet.展开更多
文摘Metadata mechanism, especially metadata management pattern, is a hotspot in the field of internet information sharing. This paper analyzes the characters and deficiency of current metadata management patterns. Subsequently, a new metadata management pattern is put forward combined with its application in geograpic information sharing. Aiming at the demands of future Internet information sharing, this pattern is a networkoriented, open and extensible metadata management system. Meanwhile, this management pattern is also a management model of trinity of data users, metadata and datasets. Finally, this paper analyzes the architecture and function flow of this network-oriented integrated metadata management pattern.
文摘Remote sensing image contains plenty Geo-information. Issuing the Geo-information on the Internet is abasic component of sharing RS Image's Geo-information. The most important of issuing the information is to organizeand manage RS image data efficiently according to their characteristics and peculiar Geo-information it them. Accord-ing to the properties of multi-sensor, multi-resolution, multi-spectrum and multi-epoch of RS image data and theirpeculiar Geo-information. This paper has constructed a solid index mechanism of "Pyramid, Block, Layer, Epoch"according to the properties of RS image data and established corresponding logic relation databases for RS image data.The Geo-information of RS image data is reorganized via the solid index mechanism and logic database. Finally, theabove ideas are used in setting up an image database system to provide query and search for Geo-information on theInternet.
