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Power line detection method and device

A detection method and power line technology, applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve the problems of missed power line detection, etc., to reduce the probability of missed detection, solve the problem of false detection, and reduce the effect of false detection rate.

Active Publication Date: 2020-04-03
PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU
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Problems solved by technology

[0005] The purpose of the present invention is to provide a power line detection method and device to solve the problem of power line detection under complex background using the traditional straight line detection method, which is prone to missing detection of power lines

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Method example:

[0035] Such as figure 1As shown, this embodiment provides a power line detection method, which mainly includes three steps of edge extraction, line support area construction and line group fitting. The extraction accuracy of the edge points of the lower power line, and then use the gradient of the edge point to construct a straight line support area, eliminate most of the scene noise, combine the power line image features to filter the line support area, establish the target line segment corresponding to the power line, and finally according to the line segment where the line segment is located Compared with the traditional line detection method, it improves the accuracy of power line detection, reduces the probab...

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Abstract

The invention provides a power line detection method and device, and belongs to the technical field of power line detection. The method comprises the steps of obtaining a power line image; extractingedge pixel points of the power line image; constructing a linear support area by utilizing the edge pixel points of the power line image; adjusting the constructed linear support area, wherein the following steps are iteratively executed: when the length of the linear supporting area is greater than a set length threshold value and the interior point density of the linear supporting area is smaller than a set interior point density threshold value, removing pixel points on two sides of the linear support area in the length direction until the length is greater than or equal to a set length threshold value and the internal point density is greater than or equal to a set internal point density threshold value to obtain an adjusted linear support area; and performing linear grouping fitting to obtain a power line in the image. According to the invention, the linear support area adjusting mode can reduce the probability of power line missed detection.

Description

technical field [0001] The invention relates to a power line detection method and device, belonging to the technical field of power line detection. Background technique [0002] With the rapid development of UAV technology, the detection of line obstacles such as power lines in the complex background environment of UAV cruising environment has become a hot spot. [0003] The current line detection algorithm mainly has two methods based on edge image and image gradient: (1) The method based on edge image is mainly Hough transform, among which, the standard Hough transform occupies more system resources, complex operation, low efficiency and precision; Random Hough transform, probabilistic Hough transform or discrete Hough transform, etc., although reducing the calculation load and memory consumption of the standard Hough transform, improve the accuracy of line detection, and by pre-grouping and clustering the pixels, it is very good to solve the false The problem of missing ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46
CPCG06V20/176G06V10/44Y04S10/50
Inventor 李朋月郝向阳李建胜刘松林王安成张旭胡鹏王安然王俊强王高杰王凯
Owner PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU
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