Abstract:Aiming at the problem of thread measurement with small pitch, a screw thread parameters measurement method based on machine vision is proposed. Which solves the problem that the tip of the mechanical scanning probe is too large to measure the small size pitch diameter. This work developed a method of image processing method to detect the edge of screw thread parameters. The screw thread image is collected by calibrating the camera to correct the distortion error. Canny edge detection is used to detect the edge… Show more
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