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Method and system for rapid inspection of massive land cover gaps

A surface coverage and rapid inspection technology, applied in the field of geospatial information, can solve the problems of reduced data inspection efficiency, increased time-consuming data inspection, and gap inspection methods that cannot be processed.

Active Publication Date: 2021-01-29
NAT GEOMATICS CENT OF CHINA
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] The above method uses full data scanning and inspection. With the continuous growth of data volume, the efficiency of data inspection is gradually reduced, and the time consumption of data inspection is increased. When the amount of data is large enough, the traditional gap inspection method cannot be processed, and it is not suitable for large-scale surface inspection. Covering objective requirements for quick inspection of data gaps

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  • Method and system for rapid inspection of massive land cover gaps
  • Method and system for rapid inspection of massive land cover gaps
  • Method and system for rapid inspection of massive land cover gaps

Examples

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Embodiment 1

[0051] figure 1 It is a flowchart of a method for quickly inspecting massive land cover gaps provided by Embodiment 1 of the present invention.

[0052] refer to figure 1 , a rapid inspection method for massive land cover gaps, including:

[0053] Step S101, obtaining the complete set of land cover data;

[0054] The complete set of land cover data may be the land cover data of the target area, and the target area includes all areas on the ground surface.

[0055] Step S102, dividing the land cover complete set data to obtain multiple data subsets;

[0056] Further, step S102 includes: dividing the data of the complete set of land cover into multiple data subsets according to the administrative area, or dividing the data of the complete set of land cover into multiple data subsets according to the geographical grid.

[0057] Specifically, the complete set of land cover data is divided into several spatially contiguous data subsets of similar size according to administrative ...

Embodiment 2

[0074] image 3 It is a schematic diagram of a rapid inspection system for massive land cover gaps provided by Embodiment 2 of the present invention.

[0075] refer to image 3 , a rapid inspection system for massive land cover gaps, including:

[0076] Acquisition module 10, used to obtain the complete set of land cover data;

[0077] A division module 20, configured to divide the complete set of land cover data to obtain a plurality of data subsets;

[0078] The first processing module 30 is configured to perform a first spatial fusion process on each data subset to obtain multiple sub-fused polygons;

[0079] The second processing module 40 is configured to process a plurality of sub-fused polygons to obtain a full set of fused polygons;

[0080] The construction and acquisition module 50 is used to construct topological rules for the ensemble fusion polygons, and obtain the gaps of the ensemble of land cover according to the topological rules.

[0081] Further, as F...

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Abstract

The present invention provides a method and system for quickly inspecting massive land cover gaps, which relate to the technical field of geospatial information, including: obtaining the data of the complete set of land cover; dividing the data of the complete set of land cover to obtain multiple data subsets; Performing the first spatial fusion processing to obtain multiple sub-fusion polygons; processing the multiple sub-fusion polygons to obtain a full set of fusion polygons; constructing topology rules for the full set of fusion polygons, and obtaining the full set of gaps in the ground cover according to the topological rules. The invention improves the efficiency of gap inspection, thereby meeting the objective requirement of rapid inspection of gaps in large-scale land cover data.

Description

technical field [0001] The invention relates to the technical field of geospatial information, in particular to a method and a system for quickly checking massive land cover gaps. Background technique [0002] The land cover data reflect the true state of the land cover, and accurate statistics of the spatial area distribution of various land types are of great significance for fine-grained land supervision, agricultural and forestry planning, and ecological protection. The land cover data requires a strict seamless coverage of the land surface in space, and a strict splicing of the topological structure between the land types and patches. The spatial gap between land cover patches is a common quality problem of land cover data, which directly affects the topological quality and utilization value of land cover data. [0003] The traditional inspection methods for surface cover gaps are as follows: (1) Spatial boundary inspection of map spots, that is, to strictly judge the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q50/26
CPCG06Q50/26
Inventor 高崟刘若梅王发良张浩然白驹
Owner NAT GEOMATICS CENT OF CHINA
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