The linear detection of glass feet billet based on Sobel

In the process of producing glass feet billet, how to detect the qualification of the products has became an important part. For this situation, this paper designs a detection system of the linear of glass feet billet. In this system, first, make Sobel edge detection to the images from the camera. Then this paper proposes a dynamic threshold segmentation method, this method can draw the upper edge curve of the glass feet billet quickly and accurately. This method can detect the qualification of the products very accurate. This system has been successfully applied to the products site.