Overhead contact system rod insulator fault detection method based on Harris corners and image difference
An image difference and fault detection technology, applied in image analysis, image data processing, character and pattern recognition, etc., can solve problems such as high risk and complex algorithm
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[0045] The embodiment of the present invention will be described in further detail below in conjunction with the actual pictures taken in the experiment.
[0046] combine figure 1 Shown: a schematic diagram of the thinking of the method proposed in this paper of the present invention.
[0047] The main steps are as follows: first, conduct Harris corner detection on the selected template image and the image to be detected; then use the sequential similarity detection algorithm to match the inner corners of the template image and the image to be detected; then perform fuzzy aggregation on the matched corners. Because the matching will cause the loss of useful corner points at the central axis of the insulator, it is necessary to restore the corner points; then use the least squares method to fit the straight line; finally, according to the symmetry of the images on both sides of the straight line, the differential image and statistical longitudinal The gray scale obtains the faul...
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