Urban functional zoning method based on fusion of poi and remote sensing images

Abstract

The invention discloses a method for dividing urban functional areas by combining POI and remote sensing images, which comprises the following steps: (1) acquiring POI data, remote sensing images and spatial geographic entity data of the area; Select categories that are sensitive to the division of urban functional areas to form evaluation categories, and the POI data corresponding to the evaluation categories form functional POI data; match the functional POI data with the spatial geographic entity data to obtain each geographical entity. The initial distribution structure of class POI data; (3) extract land cover data from the described remote sensing image of region; (4) based on the initial distribution structure of each class POI data in step (2) and the land cover data in step (3) Formulate decision tree classification rules; (5) divide urban functional areas of the region according to the decision tree classification rules. Based on a decision tree classification algorithm, the invention combines POI data with Landsat remote sensing data to realize rapid division of urban functional areas.

Description

technical field [0001] The invention relates to a method for dividing urban functional areas by combining POI and remote sensing images. Background technique [0002] Urban functional areas reflect the characteristics of high concentration of various social and economic factors in a city, obvious radiation effects and significant social and economic benefits, and are important carriers for cities to realize their various social and economic functions. In the process of urban development, the aggregation effect of different functional areas has gradually formed: commercial areas, residential areas, scenic spots and mixed functional areas. Objective, accurate, fast and accurate acquisition of urban functional zoning plays an important guiding role in promoting sustainable development of urban functions, scientific and reasonable urban planning, promoting urban economic development, enhancing regional competitiveness and solving urban environmental problems. [0003] The tradi...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem that the current division of urban functional areas is mainly based on statistical investigation or expert scoring and evaluation, which is highly subjective, lacks quantitative calculation and analysis, and cannot meet the needs of rapid and accurate acquisition of urban functional area divisions under the rapid urban development.

Images