Linear element geometric accuracy evaluation method and system in multi-source vector space data

A linear element, vector space technology, applied in structured data retrieval, geographic information database, special data processing applications, etc., can solve the problems of scientificity, poor applicability, low execution efficiency, etc., and achieve objective evaluation results. The effect of strong accessibility and high execution efficiency

Inactive Publication Date: 2020-08-14
中国人民解放军火箭军工程设计研究院
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method and system for evaluating the geometric accuracy of linear elements in

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
  • Linear element geometric accuracy evaluation method and system in multi-source vector space data
  • Linear element geometric accuracy evaluation method and system in multi-source vector space data
  • Linear element geometric accuracy evaluation method and system in multi-source vector space data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure, and to fully convey the scope of the present disclosure to those skilled in the art.

[0032] figure 1 A flow chart of a method for evaluating geometric accuracy of linear elements in multi-source vector space data provided by an embodiment of the present disclosure.

[0033] Such as figure 1 As shown, in step S110, each linear element to be evaluated is determined from various vector space data to be evaluated, and geometric data of each linear element to be evaluated is obtained. Here, the linear element may be ...

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 discloses a linear element geometric accuracy evaluation method and system in multi-source vector space data. The method comprises the steps of determining each to-be-evaluated linear element from various to-be-evaluated vector space data, and obtaining geometric data of each to-be-evaluated linear element; extracting geometric data representing the same linear entity with each linear element to be evaluated from the reference data to serve as reference data; for each to-be-evaluated linear element from different data, respectively constructing a similar point pair between geometric data of each to-be-evaluated linear element and reference data, and counting the distance between the similar point pairs; and comparing the statistical results of the distances between the similar point pairs among the linear elements to be evaluated from different data to obtain geometric accuracy evaluation results of the linear elements in various vector space data. Geometric similarity measurement is carried out by adopting the Euclidean distances of the similar point pairs, the difference of geometric accuracy of linear elements in different vector data can be quantitatively described, and an evaluation result is objective and accurate.

Description

technical field [0001] The invention relates to the technical field of spatial data analysis and evaluation, in particular to a method and system for evaluating the geometric accuracy of linear elements in multi-source vector spatial data. Background technique [0002] Spatial data refers to all data with geographic coordinates. With the increasing demand for spatial data in different industries and the development of space detection technology, the types of vector spatial data products are becoming more and more abundant, the accuracy of results is continuously improving, and the amount of data is growing explosively. At the same time, the two characteristics of multi-source and heterogeneity are gradually highlighted. In stark contrast to this: the lag and lack of methods of vector space data analysis, evaluation and other related research. [0003] Most of the traditional vector space data evaluation methods are aimed at a specific data type, and the error control and st...

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): G06F16/29
CPCG06F16/29
Inventor 陈换新徐立常正阳秦志强肖凯刘健峰谢政梁霄石开赵章泳程绵绵
Owner 中国人民解放军火箭军工程设计研究院
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products