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Location method of high voltage transmission tower based on linear target

A positioning method, technology of transmission towers, applied in the direction of instruments, character and pattern recognition, computer components, etc.

Inactive Publication Date: 2017-02-08
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI +1
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Problems solved by technology

[0005] In order to solve the above problems, the object of the present invention is to propose an accurate and real-time high-voltage transmission tower positioning method based on linear targets, which effectively solves the technology of positioning high-voltage transmission towers by unmanned aerial vehicles under complex backgrounds. question

Method used

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  • Location method of high voltage transmission tower based on linear target
  • Location method of high voltage transmission tower based on linear target
  • Location method of high voltage transmission tower based on linear target

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Embodiment Construction

[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0042] Flowchart such as figure 1 As shown, the present invention uses the Hessian matrix for the positioning method of the high-voltage transmission tower. The Hessian matrix (Hessian matrix or Hessian), also known as the Hessian matrix, is a square matrix composed of the second-order partial derivatives of a real-valued function whose independent variable is a vector.

[0043] The specific implementation steps are as follows:

[0044] (1) Calculate the gradient vector and Hessian matrix of each pixel in the image

[0045] If the image L(x,y) is regarded as a three-dimensional surface composed of two-dimensional coordinates of pixels and their corresponding gray values, the coordinates of the three-dimensional surface can be expressed as:

[0046] C={(x,y,L)|L=L(x,y)}

[0047] Where (x, y) is the pixel position coordinates, L(x, y) is the...

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Abstract

The invention relates to a method for high-voltage transmission tower positioning based on linear targets. The method comprises the steps of utilizing a Hessian matrix to obtain the directions of Hessian matrix feature vectors corresponding to every pixel point, and enabling the directions to be the directions of the linear targets composed of the points; utilizing a region growing method to extract approximate points of the Hessian matrix feature vector directions to form small segments (the linear targets); finally utilizing a statistical method to vote for the small segments in the horizontal and vertical directions, and enabling an area where the small segments are concentrated most to be the position where a high-voltage transmission tower is located. The method is quick in detection speed and high in detection precision and can meet the polling requirements of unmanned aerial vehicles.

Description

technical field [0001] The invention relates to image processing, pattern recognition and automatic target recognition technologies, specifically, the use of image processing technology to detect and locate the position of high-voltage transmission towers. Background technique [0002] The integrity of the power line is the premise of transmitting electric energy and ensuring the safe use of electricity, so ensuring the integrity of the power line is a very important task, and the inspection of the power line is especially necessary. The traditional power line inspection process is that the staff go to the site to inspect the line in person. Therefore, patrol inspection is affected by too many human factors, which will endanger the lives of patrol workers in dangerous areas, and the amount of manual data entry is large, and errors are prone to errors during the manual data entry process. UAV is an unmanned aerial vehicle operated by radio remote control equipment or its own...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62
Inventor 李文涛唐延东丛杨范慧杰刘刚夏泳杜科王玲
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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