Method of extracting substation information in power distribution system based on hyperspectral remote sensing images

Abstract

The invention discloses a method of extracting substation information in a power distribution system based on hyperspectral remote sensing images. The method comprises the steps of firstly classifying hyperspectral remote sensing images using a decision tree algorithm, and then conducting edge detection of the classified hyperspectral remote sensing images to obtain vector edge lines; secondly, extracting straight line segments from the vector edges, removing the shorter straight line segments and retaining the longer ones; thirdly, extracting right angle points according to the adjacency relation among the straight line segments and included angle constraints, conducting statistics on the density features of the right angle points in a certain spatial region, and generating a right angle point density feature image; and fourthly, binarizing the density feature image using an otsu method, extracting substation vector pattern spots through connect component analysis, and thus achieving extraction of the substation information. The invention solves the classification problem of hyperspectral remote sensing images, satisfies the requirements for the extraction of the substation information in the hyperspectral remote sensing images, and improves the robustness and universality in extraction of the substation information.

Description

technical field [0001] The invention relates to an image information processing method, in particular to a method for extracting substation information in a distribution network system based on a hyperspectral remote sensing image, and belongs to the technical field of electric power system automation. Background technique [0002] With the development of smart grid, communication technology, and computer technology, the power system is developing towards a high degree of informationization, automation and digitalization, and the scale of the power grid is expanding day by day. The power equipment and facility data, user data, and planning data that need to be managed are also increasing. Scientific decision-making depends to some extent on the amount of information that decision makers have. Power generation, transformation, and transmission systems are complex systems that contain a large amount of information. Distribution information management based on geographic infor...

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Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a method for extracting substation information in a distribution network system based on hyperspectral remote sensing images, which can not only solve the classification problem of hyperspectral remote sensing images, but also meet the To meet the needs of substation information extraction, improve the robustness and universality of hyperspectral remote sensing image substation information extraction

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