Multi-information cascade clustering power transmission line detection method

Abstract

The invention discloses a multi-information cascade clustering power transmission line detection method, which comprises the following steps: (1) acquiring a power transmission line image, and performing gray scale transformation on the image; (2) carrying out image preprocessing on the image after gray scale transformation by using an edge enhancement algorithm; (3) performing cumulative probability Hough transform on the enhanced image, and extracting candidate straight lines in the image; (4) performing cascade clustering analysis on the straight line information according to the length, angle and position information of the straight line; (5) calculating distances among all straight lines according to a straight line distance formula, and removing repeated straight lines; and (6) predicting the trend of the power transmission line by using the finally obtained straight line according to the calculated angle position information, and marking the power transmission line by using a rectangular frame. The invention can effectively delete the interference lines which are caused by a complex background and are not matched with the characteristics of the power transmission line, finally obtains all straight lines corresponding to the edge of the power transmission line, is higher in accuracy and robustness, and is better in performance under the complex background.

Description

technical field [0001] The invention belongs to the field of digital image processing, and in particular relates to a multi-information cascade clustering transmission line detection method. Background technique [0002] Transmission lines are usually assumed to be in the wild with complex and changeable environments. Because they are exposed to the outdoor environment for a long time, they are subjected to severe weather such as high temperature and heavy snow, which leads to a decrease in transmission efficiency. In order to ensure that power transmission can be carried out stably, regular inspections of transmission lines are particularly necessary. The traditional manual inspection method has low efficiency, high cost, and high risk factor; in comparison, UAV inspection has the advantages of strong mobility, no terrain restrictions, and convenient operation. By using drones to inspect transmission lines, inspection efficiency can be improved, costs can be reduced, and r...

AI Technical Summary

Problems solved by technology

This method uses connected region analysis to reduce the influence of complex background on the algorithm, but the double-edge feature of the Canny operator affects the final marking of the transmission line and increases the complexity of the algorithm

[0007] Therefore, although there are many researches in the field of transmission line detection at home and abroad, most of the methods cannot deal with complex background interference and accurately detect transmission lines.

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