POI (Point of interest) and remote-sensing image integrated urban function zone division method

Abstract

The invention discloses a POI (Point of interest) and remote-sensing image integrated urban function zone division method. The method comprises the following steps of (1), obtaining POI data, remote-sensing images and space geographic entity data of a region; (2), selecting classes sensitive to urban function zone division from class attributes of the POI data, thereby forming evaluation classes,forming function POI data based on the POI data corresponding to the evaluation classes, matching the function POI data with the space geographic entity data, thereby obtaining an initial distributionstructure of each class of POI data in each geographic entity; (3), extracting land cover data from the remote-sensing images of the region; (4), making a decision tree classification rule based on the initial distribution structure of each class of POI data in the (2) and the land cover data in the (3); and (5), dividing urban function zones of the region according to the decision tree classification rule. According to the method, on the basis of a decision tree classification algorithm, the POI data and Landsat remote-sensing data are combined, so the urban function zones are rapidly divided.

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.

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