Image processing method of transmission line under complex background based on image classification

Abstract

The invention discloses a power transmission line image processing method under complex background based on image classification, and belongs to the technical field of image processing. Through image feature variable statistics, image classification, primary filtering, contrast enhancement, secondary filtering, edge detection, and edge optimization, image feature extraction of transmission lines under complex backgrounds is completed. The invention classifies and processes the images according to the variable values ​​in each color space of the transmission line image, has strong pertinence and good processing effect. Through the linear transformation of the image gray average value and the threshold obtained by the maximum inter-class variance method, the segmental interval of the histogram equalization is determined, the parameters of the stretching interval and the canny operator are completed, and the image contrast enhancement and edge features are better completed. Extraction, strong applicability. An edge optimization method is proposed to remove the influence of non-target edges as much as possible. The invention can perform self-adaptive image processing according to image features, has high reliability, and has great significance for realizing intelligent on-line monitoring of power transmission lines.

Description

technical field [0001] The patent of the present invention relates to the technical field of image processing, in particular to an image classification-based image processing method for transmission lines under complex backgrounds. Background technique [0002] The transmission line is an important part of the power system. It is responsible for the task of transmitting and distributing electric energy. Abnormal conditions such as icing, galloping, disconnection, and excessive sag of the transmission wire can easily lead to transmission line failure and seriously affect the power system. Safe and stable operation, resulting in huge economic losses. Therefore, it is of great significance to the safe operation of the power grid to do a good job in the monitoring and prevention of transmission lines, to detect and deal with transmission line faults in time. [0003] At present, the monitoring of high-voltage transmission lines is mainly manual inspection, and information is ob...

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Problems solved by technology

At present, there are very few patents in this area in China. For example, the Chinese patent "Measurement Method for Icing Thickness of Transmission Line Insulators Based on Video Difference Analysis" (application number: 201110173506.9) and other types of patents have proposed the use of image processing methods to analyze transmission lines. It has the advantages of high efficiency and strong applicability, but most of the current domestic patents only discuss image processing methods for several images of the same type, without considering the influence of different image backgrounds on the image processing effect of transmission lines , it is difficult to correctly analyze transmission line images with different background types, which has very large limitations and cannot realize highly intelligent online monitoring of transmission lines

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