Patent · US Active

Method for making texture symbol of land use classification map

US11640666B2 · kind B2 · utility

0Cited by

0References

3Claims

0Family size

Assignee

CHINA UNIVERSITY OF GEOSCIENCES (BEIJING) · CN

Inventors

Zongtang Fu · Beijing, CN
Yushuang Wang · Beijing, CN
Dong Chen · Fremont, US

Key dates

Filing date	Oct 13, 2020
Grant date	May 2, 2023
Priority date	—
Expiry date	Oct 14, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG06V20/13
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method for making texture symbols of a land use classification map is disclosed in the disclosure, including: capture of texture materials; extraction of main colors; color clustering; extraction of a texture skeleton; tile effect removal; and establishment of a texture library. The disclosure has the following advantages: definitions and classes of texture symbols are provided, and a procedure of making texture symbols is made clear; used natural texture symbols and symbolic texture symbols have clear semantic meanings, facilitating information transfer of the map; the quality and layering of the map are improved; the texture symbols can be directly used for production, to provide a fundamental support for survey and mapping of land use, and also to provide a solution for large-scale result mapping of natural resource survey. The expression of thematic maps of current land use classification is improved.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.