In order to realize online non-contact detection of the abrasion of the pantograph slipper of the urban rail train,abrasion detection technologies are studied. In this paper,an abrasion detection method based on image processing is proposed. The steps involved are as follows: firstly,the mixed noise of the original image from the acquisition system is removed by image filtering; then the edge of the pantograph slipper in the image is detected by the adaptive canny edge detection based on histogram concavity...
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