Method and device for automatically extracting high-resolution remote sensing images of urban buildings

Abstract

The invention discloses a method and a device for automatically extracting high-resolution remote sensing images of an urban building. The method comprises the following steps: respectively calculating differential morphological structure sequence characteristics and differential morphological attribute sequence characteristics of the remote sensing image according to an original high-resolution remote sensing image; constructing a feature optimization model according to the differential morphological structure sequence features and the differential morphological attribute sequence features, and optimizing the differential morphological structure sequence features and the differential morphological attribute sequence features according to the feature optimization model to obtain optimizedmorphological structure optimization features and morphological attribute optimization features; and automatically segmenting urban building information of an optimized morphological structure of features and morphological attribute optimization features according to preset multi-source prior information to obtain initial information of urban buildings, and fusing the initial information to obtainfinal information of the urban buildings. According to the invention, the technical problem of poor quality of extracted urban building information in the prior art is solved.

Description

technical field [0001] The present application relates to the technical field of high-resolution remote sensing image extraction of urban buildings, in particular to a method and device for automatic extraction of high-resolution remote sensing images of urban buildings. Background technique [0002] As the core index element of the city, urban building information plays an important role in the basic information of the city and the research of the urban ecological environment. With the acceleration of urbanization and the needs of urban intelligent management, the monitoring of urban buildings has become An important part of urban management. With the rapid development of domestic high-resolution remote sensing satellite business, remote sensing images can provide large-scale, refined and high-frequency monitoring information for cities, thus becoming the main data source for urban building monitoring. [0003] At present, there are mainly two methods for extracting high-r...

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Problems solved by technology

[0004] The technical problem to be solved by this application is to provide a method and device for automatic extraction of high-resolution remote sensing images of urban buildings in view of the poor quality of urban building information extracted in the prior art, provided in the embodiments of this application In the scheme, the combination of morphological structure sequence features and morphological attribute sequence features is used to express the urban building features of high-resolution remote sensing, which enhances the comprehensive expression ability of various urban building forms, and avoids the morphological feature method of a single model It is difficult to fully express the building attributes, thereby improving the quality of the extracted urban building information

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