Method for detecting faults caused by foreign body pollution between electrified railway insulator plates based on affine invariant moment
An electrified railway, affine invariant technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve problems such as insulator difficulties
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[0051] The specific implementation manner of the present invention will be described in detail below in combination with example images.
[0052] a. Pre-classification of global image basic primitives: image 3 a is the global image to be detected, which contains two insulators in different directions, the upper right is horizontal insulator A, which has foreign matter pollution faults; the lower right is insulator B. image 3 b is the rod-shaped object obtained by Hough transform line segment detection, image 3 c is the insulator class obtained after setting the rod-shaped object class as the background.
[0053] b. Insulator identification and location: Apply affine invariant moments to identify and locate insulators in the insulator category. The specific method is: calculate the affine invariant moment of each connected region block and insulator template in the insulator class, and then calculate the Euclidean distance between each connected region and the affine invar...
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