Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Boundary interaction-based area combination topological similarity measurement method

A similarity measurement and similarity technology, applied in the field of geographic information science, can solve problems such as difficult to identify topological equivalence, and achieve the effect of convenient quantitative calculation and easy qualitative description

Inactive Publication Date: 2017-02-22
CHINA UNIV OF GEOSCIENCES (WUHAN)
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when complex boundary interactions occur, it is difficult for the above methods to identify topological equivalence on a purely topological basis

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Boundary interaction-based area combination topological similarity measurement method
  • Boundary interaction-based area combination topological similarity measurement method
  • Boundary interaction-based area combination topological similarity measurement method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] On the basis of the topological relationship of zone boundary interaction, a boundary interaction-based zone combination topological similarity measurement model is used for complex topological relationships. This model obtains their boundary interaction records by analyzing the topological relationship between complex entities, and converts the interaction records Become a binary sequence, so as to realize the conversion of similarity evaluation into a sequence calibration process, and divide the calibration process into two parts: initial matching and exact matching, so as to impro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of geographic information science, in particular to a boundary interaction-based area combination topological similarity measurement method. The method comprises the following steps of obtaining a boundary interaction record of complex entities by analyzing a topological relation between the complex entities based on a topological relation of area boundary interaction, and converting the interaction record into a binary sequence, thereby converting similarity assessment into a sequence calibration process; and representing a reference area combination and a candidate area combination by using CR and CP respectively, and then calculating topological similarity between the reference area combination CR and the candidate area combination CP by setting a weight of the similarity between a dimension sequence and a detail sequence. The method has the following advantages: 1), the topological relation between composite space objects, and the topological similarity difference can be well distinguished; and 2), various possible results are provided for users more visually.

Description

technical field [0001] The invention relates to aspects such as artificial intelligence, geographic space scene, similarity measurement, etc., and belongs to the field of geographic information science. Background technique [0002] In some research fields such as geographic information system (GIS), image retrieval or spatio-temporal database, a group of more important spatial relations are topological relations. The topological relationship describes the essence of the spatial scene and preserves translation, scaling and rotation invariance. The topological relationship models of current district objects are mainly divided into two categories, (1) for simple districts: based on calculus method, point set topology, 4-intersection model, derived 9-intersection model and region connection calculus (RCC-8), etc.; (2) For complex areas: such as the RCC-8 combination table, the extension of the 4-intersection model, the topological relationship model (TRCR) of the combination a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F17/30
CPCG06F16/29
Inventor 陈占龙谢忠吴亮张丁文徐永洋龚希叶文朱榕榕
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com