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Automatic extraction method for electric transmission line part of unmanned aerial vehicle polling image

A transmission line, automatic extraction technology, applied in the direction of computer parts, instruments, characters and pattern recognition, etc., can solve the problem that it is not suitable for processing drone inspection images, the automatic recognition function of components has not been realized, and large templates are manually designed. , to achieve the effects of stable operation, low computational overhead, and fast analysis

Active Publication Date: 2017-01-04
STATE GRID INTELLIGENCE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing methods are for identification or image segmentation of a certain part of the transmission line. For example, the patent CN105023014 A uses the strategy of corner detection to realize the positioning of the tower. This method is suitable for the inspection image of the tower with a relatively simple background. When shooting When the background color is similar to that of the tower or the background is complex (such as buildings, etc.), it will interfere with the positioning and reduce the accuracy of positioning; the patent CN101630411 A realizes the calculation of the pixel entropy value of the inspection image by calculating the power transmission line and the background segmentation, but did not realize the automatic recognition function of specific components, and this patent mainly deals with the inspection images with the sky as the background, and is not suitable for processing the UAV inspection images with the earth as the background; the patent CN101625723 A utilizes the improved Hough transform extracts the current features in the inspection image, and combines the template fitting method to realize the positioning of the wire in the image
Due to the fact that there are many postures of the wires in practice, a large number of templates need to be manually designed in order to realize the positioning of the wires, and the workload is relatively large

Method used

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  • Automatic extraction method for electric transmission line part of unmanned aerial vehicle polling image
  • Automatic extraction method for electric transmission line part of unmanned aerial vehicle polling image
  • Automatic extraction method for electric transmission line part of unmanned aerial vehicle polling image

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] Such as figure 1 As shown, an automatic extraction method of transmission line components based on UAV inspection images, the specific steps include:

[0041] 1) Image reading: read the inspection image data, perform zoom processing and perform RGB channel data separation, histogram statistics and other data calculations on the color image, as the original data for post-processing;

[0042] 2) Use the prewitt operator to traverse the image and calculate the edge information of the image;

[0043] 3) The image is divided into blocks, the characteristics of the image in each image block are analyzed, and similar features are aggregated to form a feature block;

[0044] 4) According to the inherent attributes of the transmission line components, the feature blocks are analyzed for characteristics such as connectivity, parallelism, and intersection...

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Abstract

The invention discloses an automatic extraction method for an electric transmission line part of an unmanned aerial vehicle polling image. The method comprises the steps: reading polling image data, performing zooming processing and performing RGB channel data separation and histogram statistic on a color image, traversing the image, and determining the edge information of the image; performing partitioning processing on the image, extracting the characters of the image blocks, aggregating the similar characters, and obtaining characteristic blocks; combined with the inherent attribute of the electric transmission line part, performing feature analysis on the characteristic blocks, determining the categorical attributes of each characteristic block, and marking the parts on the electric transmission line. The automatic extraction method is capable of screening the image obtained by polling, and reducing the burdening of the artificial screening, and has extensive application prospect in the polling field.

Description

technical field [0001] The invention belongs to the technical field of transmission line equipment monitoring, relates to digital image processing and pattern recognition technology, and in particular to an automatic extraction method for transmission line components used in drone inspection images. Background technique [0002] With the rapid development of my country's national economy and the increasing scale of urban construction, the demand for electric energy has increased. In order to ensure reliable power supply for enterprises and residents, power companies are required to conduct regular inspection and maintenance of transmission lines, especially the auxiliary equipment of the lines, so as to ensure the stable power supply and safe operation of the entire power grid. Due to the vast territory of our country, the transmission mileage of transmission lines is large, and the geographical environment is complex (mountains, rivers, hills, etc.), the operation safety of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/46G06K9/62
CPCG06V20/176G06V10/44G06F18/23
Inventor 刘越王万国刘俍张方正杨波田源朱德袆雍军慕世友李超英魏传虎李建祥赵金龙李勇吴观斌许乃媛
Owner STATE GRID INTELLIGENCE TECH CO LTD
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