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Earth Observation Metadata Integration Method

An integrated method and earth observation technology, applied in the fields of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of metadata heterogeneity, inability to interface storage, conversion difficulties, etc.

Active Publication Date: 2015-10-21
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims at the shortcomings of numerous existing spatial metadata standards, serious heterogeneity of various metadata, difficulty in conversion, and inability to use a unified interface for storage, and provides a method that is compatible with various spatial metadata standards and can be generated based on different spatial metadata standards. A Novel Earth Observation Metadata Integration Method for Heterogeneous Metadata

Method used

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  • Earth Observation Metadata Integration Method

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Embodiment 1

[0032] The earth observation metadata integration method includes the following specific steps:

[0033] 1) Establish a metadata core catalog set. The information of the metadata core catalog set includes all spatial metadata attributes released by standardization organizations. If there are new attributes, the core catalog set will be expanded to cover all attributes. The metadata core catalog set is composed of records, each record corresponds to a metadata attribute, and the records include the following fields: ID, attribute name, attribute group, description, data type, source, wherein the attribute name includes Chinese Name and English name, the attribute name field saves the name of the metadata attribute, the attribute group field saves the attribute group where the metadata attribute is located, and the attribute group includes identification information, data quality information, reference system information, content information, coverage range, distribution informa...

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Abstract

The invention relates to the field of spatial mass metadata, and discloses an earth observation metadata integration method. The earth observation metadata integration method comprises the following specific steps of: establishing a metadata core catalogue set; by aiming at different types of metadata files, generating and submitting a mapping template so as to assign the mapping relationship between the node of the metadata file and the metadata attribute; and analyzing a dendritical structure in the metadata file into a linear structure. The earth observation metadata integration method disclosed by the invention has the advantages that the metadata form integration is realized, the form isomerism problem that the same attribute has different names or topological structures due to different resources, various spatial data standards can be compatible, and the mass metadata can be efficiently stored.

Description

technical field [0001] The invention relates to the field of space massive metadata storage, in particular to a method for integrating earth observation metadata. Background technique [0002] In recent years, with the in-depth development of remote sensing observation and image acquisition technology, various satellite launches and new sensors have emerged continuously, and the types and levels of remote sensing image data have been continuously enriched, presenting multi-format, multi-type, multi-scale, massive and Characteristics of distributed storage. The demand for remote sensing observation information in various fields in society is increasing, and various relevant institutions or departments have independently established remote sensing image databases for different resource types and heterogeneous applications, forming a distributed, heterogeneous, Cross-departmental remote sensing image databases with diverse resource types. The above-mentioned heterogeneous cha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 陶金火田帅郑国轴陈华钧吴朝晖
Owner ZHEJIANG UNIV
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