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Positioning method of power transmission line inspection image insulator

A technology of transmission lines and positioning methods, which is applied in image analysis, image data processing, instruments, etc., can solve problems such as complex backgrounds and difficulties in accurate identification and positioning of insulators, and achieve effective technical support, high proportion of positioning area targets, and positioning fast effect

Active Publication Date: 2019-11-22
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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  • Positioning method of power transmission line inspection image insulator
  • Positioning method of power transmission line inspection image insulator
  • Positioning method of power transmission line inspection image insulator

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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 positioning method of a power transmission line inspection image insulator. The method comprises the steps of feature packet model construction, initial insulator region determination and target region optimization. The method comprises the steps of firstly constructing a feature packet model to train a sample set to obtain an insulator classification model, then determining an initial positioning area of an insulator according to feature points, then guiding the growth of a target area through significance, and finally optimizing the positioning area in combination with the trained classification model to obtain a final insulator positioning area. According to the method, the positioning of the insulator is guided by using the significance, the defect of high time consumption caused by the need of searching the whole image in the traditional detection method is avoided, the proposed method is high in positioning precision, high in target proportion of the positioning area and high in positioning speed, and an effective technical support is provided for the fault detection of the insulator.

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 Applications(China)
IPC IPC(8): G06K9/62G06T7/187
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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