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A series of images of the whole wheel surface was captured by the imaging system. Median filtering and image contrast enhancement were used on the defect images, and then canny edge detection based on gradient histogram was done in further details. The images after edge detection are used for eight-neighbor boundary tracking, to obtain the sizes in-pixel of defects. The experiment system is set to...
In this paper, a defect detecting system of wheel tread based on linear charge coupled device (CCD) is established, and the image recognition technology of wheel tread defects under this system is studied. Firstly, images of the whole wheel tread are captured through the system. Secondly, median filtering and image contrast enhancement are processed on the defect images, and then the canny edge detection...
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