Trans-scale geographic information linkage updating technical method based on spatial automatic matching

An automatic matching and geographic information technology, which is applied in geographic information databases, electronic digital data processing, special data processing applications, etc., can solve the problems of poor overall coordination of results, low degree of automatic processing, and low potential utilization of data. Achieve the effect of seamless integration of incremental information, improvement of production efficiency and accuracy, and perfect coverage

Inactive Publication Date: 2016-07-06
NAT GEOMATICS CENT OF CHINA
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Problems solved by technology

These methods have the shortcomings of lack of complete incremental processing mechanism; low degree

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  • Trans-scale geographic information linkage updating technical method based on spatial automatic matching

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[0019] figure 1 It is a flowchart of a cross-scale geographic information linkage update technical method based on spatial automatic matching in an embodiment of the present invention. Please refer to figure 1 In this embodiment, the cross-scale geographic information linkage update technical method based on spatial automatic matching includes:

[0020] S1: Perform completeness analysis, current analysis, and update status label analysis on large-scale data, and obtain analysis results.

[0021] S2: Extract the updated information in the large-scale data based on the analysis results, combined with the feature model matching and comparison method, if the incremental change information is complete, update the status of the elements in the large-scale data (new addition, attribute changes, graphic changes, relationship changes, etc.) ) Is marked as an incremental information source and important reference for the next editing process. And delete the large-scale data whose update t...

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Abstract

The invention discloses a trans-scale geographic information linkage updating technical method based on spatial automatic matching. The method comprises large-scale data analysis, variable information extraction, data editing, quality check and update result storage; the large-scale data analysis comprises integrity analysis, currency analysis and update state mark analysis; the variable information extraction comprises update state marking, trans-scale model matching and artificial contrast analysis; the data editing comprises graph variation, coordinated processing and supplementary acquisition; and the quality check comprises comprehensive choice of check factors, correct geometrical expression normalization, filling accuracy and integrity of check attributes, mutual spatial relationship rationality between check factors and accuracy of check factor update state marks.

Description

technical field [0001] The invention relates to a cross-scale geographic information linkage update technology method based on automatic spatial matching, which belongs to the field of surveying and mapping and geographic information industry data production, and is suitable for the production and continuous update of national basic geographic information data, mainly involving model matching, incremental extraction, and linkage Editing, smart labeling, etc. Background technique [0002] At present, the mainstream of geographic information linkage update adopts single-element automatic comparison, entity code link, manual comprehensive comparison and other technical methods. These methods have the shortcomings of lack of complete incremental processing mechanism; low degree of automatic processing; poor overall coordination of results; and low utilization of data potential. Contents of the invention [0003] The present invention provides a cross-scale geographic informat...

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/29
Inventor 刘建军杜晓刘剑炜张元杰吴晨琛
Owner NAT GEOMATICS CENT OF CHINA
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