典型文献
Requirement-driven remote sensing metadata planning and online acquisition method for large-scale heterogeneous data
文献摘要：
Remote sensing data acquisition is one of the most essential processes in the field of Earth observation. However, traditional methods to acquire data do not satisfy the requirements of current applications because large-scale data processing is required. To address this issue, this paper proposes a data acquisition framework that carries out remote sensing metadata planning and then realizes the online acquisition of large amounts of data. Firstly, this paper establishes a unified metadata cataloging model and realizes the catalog of metadata in a local database. Secondly, a coverage calculation model is presented, which can show users the data coverage information in a selected geographical region under the data requirements of a specific application. Finally, according to the data retrieval results and the coverage calcula-tion, a machine-to-machine interface is provided to acquire target remote sensing data. Experiments were conducted to verify the availability and practicality of the proposed frame-work, and the results show the strengths and powerful capabilities of our framework by overcoming deficiencies in traditional methods. It also achieved the online automatic acquisi-tion of large-scale heterogeneous remote sensing data, which can provide guidance for remote sensing data acquisition strategies.
文献关键词：
中图分类号：
作者姓名：
Shuang Wang;Guoqing Li;Wenyang Yu;Yue Ma
作者机构：
Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing,China;School of Electronic,Electrical and Communication Engineering,University of Chinese Academy of Sciences,Beijing,China
文献出处：
引用格式：
[1]Shuang Wang;Guoqing Li;Wenyang Yu;Yue Ma-.Requirement-driven remote sensing metadata planning and online acquisition method for large-scale heterogeneous data)[J].地球空间信息科学学报（英文版）,2022(02):169-181
A类：
metadata,cataloging,acquisi
B类：
Requirement,driven,remote,sensing,planning,online,acquisition,large,scale,heterogeneous,Remote,one,most,essential,processes,field,Earth,observation,However,traditional,methods,acquire,do,not,satisfy,requirements,current,applications,because,processing,required,To,address,this,issue,paper,proposes,framework,that,carries,out,then,realizes,amounts,Firstly,establishes,unified,model,local,database,Secondly,coverage,calculation,presented,which,can,show,users,information,selected,geographical,region,under,specific,Finally,according,retrieval,results,machine,interface,provided,target,Experiments,were,conducted,verify,availability,practicality,proposed,strengths,powerful,capabilities,our,by,overcoming,deficiencies,It,also,achieved,automatic,guidance,strategies
AB值：
0.504015
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