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A positioning method for image insulators in transmission line inspection

A technology for transmission lines and positioning methods, which is applied in image analysis, image data processing, instruments, etc., can solve the problems of complex background and difficulty in accurate identification and positioning of insulators, and achieves effective technical support, high target ratio in the positioning area, and positioning. high precision effect

Active Publication Date: 2022-04-01
HOHAI UNIV CHANGZHOU +1
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AI Technical Summary

Problems solved by technology

[0005] Accurate and fast identification and positioning of insulators is the basis for detection of self-explosion state of insulators in transmission line inspections. Due to the complex background in the inspection process, it has brought certain difficulties to the accurate identification and positioning of insulators.

Method used

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  • A positioning method for image insulators in transmission line inspection
  • A positioning method for image insulators in transmission line inspection
  • A positioning method for image insulators in transmission line inspection

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Embodiment Construction

[0024] The actual flow chart of the present invention is as figure 1 As shown, a method for locating an insulator in a transmission line inspection image of the present invention comprises the following steps:

[0025] 1) Build a feature bag model:

[0026] The FAST algorithm is used to detect the feature points of the images in the sample set, and the BRISK algorithm is used to extract the features of each feature point detected, and the feature expression of each feature point is obtained, and all the extracted features are clustered by the fuzzy clustering method to obtain The feature codebook maps the feature point features extracted from each sample image through the feature codebook, and uses the mapped features to train the SVM model to obtain a trained classification model.

[0027] Its steps are as follows:

[0028] 11) Collect a positive sample set and a negative sample set, the images in the positive sample set contain insulators, and the images in the negative sa...

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Abstract

The invention discloses a method for locating insulators in transmission line inspection images, which includes building a feature package model, determining an initial insulator area, and optimizing a target area. First, a feature package model is constructed to train a sample set, and an insulator classification model is obtained. Points determine the initial positioning area of ​​the insulator, and then the growth of the target area is guided by the salience, and finally the positioning area is optimized by combining the trained classification model to obtain the final insulator positioning area. The invention uses salience to guide the positioning of insulators, avoiding the need to search the entire image in the traditional detection method, resulting in time-consuming shortcomings. The proposed method has high positioning accuracy, high proportion of targets in the positioning area, and high positioning speed. Fast, providing effective technical support for insulator fault detection.

Description

technical field [0001] The invention relates to a method for locating an insulator with an inspection image of a power transmission line, and belongs to the field of digital image processing and target detection. Background technique [0002] The high-voltage transmission line network has become the backbone network in the power system. While the construction of the power grid is accelerating, the distribution of transmission lines is becoming wider and wider. In order to ensure the normal operation of the transmission line, power inspection personnel need to inspect the power equipment in the designated transmission line and record the existing faults. Insulators are mostly used at one end of the high-voltage wire connection tower, which can withstand voltage and mechanical stress, and are an indispensable part of power transmission and transformation lines. According to the "Prospect of China's Insulator and Surge Arrester Industry Industry Demand and Investment Forecast ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62G06V10/774G06V10/764G06V10/762G06T7/187
CPCG06T7/187G06F18/23G06F18/2411G06F18/214
Inventor 漆灿李庆武郑欣刘艳彭靓范晓炳
Owner HOHAI UNIV CHANGZHOU
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