Method for recognizing insulator image on the basis of Canny edge detection algorithm

An edge detection algorithm and image recognition technology, which is applied in image enhancement, image analysis, image data processing, etc., can solve the problems of not being able to effectively improve insulator detection, recognition effect, high recognition cost, and large equipment consumption, etc., to achieve strong practicality Value and practical significance, improve recognition effect, solve interference effect

Inactive Publication Date: 2016-06-15
STATE GRID CORP OF CHINA +1
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Problems solved by technology

In order to solve the problem of extracting a single insulator disk in an insulator string, this method uses the least squares method to perform ellipse fitting on the edge of a single insulator disk; in addition, the method of self-organizing mapping is used to identify the partial discharge of the insulator, and the obvious partial discharge is used Non-linear PCA method extraction, while using SOM (Self-Organizing

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  • Method for recognizing insulator image on the basis of Canny edge detection algorithm
  • Method for recognizing insulator image on the basis of Canny edge detection algorithm
  • Method for recognizing insulator image on the basis of Canny edge detection algorithm

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[0031] The present invention will be further described in detail below in combination with test examples and specific implementations. However, it should not be understood that the scope of the above-mentioned subject of the present invention is limited to the following embodiments, and all technologies implemented based on the content of the present invention belong to the scope of the present invention.

[0032] Hereinafter, the present invention will be described in more detail with examples in conjunction with the accompanying drawings:

[0033] Combine figure 1 , figure 2 , figure 1 It is a block diagram of insulator image recognition method based on Canny edge detection algorithm, figure 2 The specific algorithm flow chart for digital image processing. An insulator image recognition method based on Canny edge detection algorithm, including the following steps:

[0034] 1. Image preprocessing: Lab space thresholding is performed on the insulator image to separate the insulato...

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Abstract

The invention discloses a method for recognizing insulator image on the basis of the Canny edge detection algorithm. The method comprises following steps: 1. pre-treating an insulator image taken by a camera in an electric transmission line field; 2. performing edge detection to the image on the basis of Canny operators; 3. performing morphological erosion operation to the image; 4. performing insulator extracting and recognizing by use of Hough transformation line detection. By use of the method, insulators can be accurately located and identified in complicated electric transmission line fields, and the interference of complicated environment can be effectively avoided.

Description

technical field [0001] The invention relates to an image recognition technology method, in particular to an insulator image recognition method based on Canny edge detection algorithm. Background technique [0002] At present, regarding the identification of insulators, many traditional methods have been proposed. Different traditional methods have their own advantages and disadvantages: from the perspective of color characteristics, the best entropy threshold segmentation algorithm based on morphological algorithm for insulators is obtained to segment the S component. Fig. 1. Calculate the shape eigenvalues ​​of the insulator and the background area by restoring the image and filtering the grayscale information, and design the classification decision-making conditions; It has the advantage of stability; in addition, there is also the use of projection characteristics as a recognition idea, using side projection to search for insulators directly from the image; in order to ...

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Application Information

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IPC IPC(8): G06T7/00G06T5/00
CPCG06T5/002G06T7/0004G06T2207/10004G06T2207/20036G06T2207/20061G06T2207/30148
Inventor 杨蔚周辉杜毅赵强杨颖锐杨生兰范强李胜
Owner STATE GRID CORP OF CHINA
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