Research of Detection and Tracking System of Seam in the Automatic Welding

In the process of automatic welding,we ld ing gun should be pointed at the center of seam.A recognition system used for au tomatic real-time detection and tracking of the center of seam was presented.In this system,CCD was used for its high-precision sense to images.Besides,some a ppropriate image processing method was taken to get sharp image of welding front -end region and accurate centering of seam.Accordingly,the dispersion between t he position of welding gun and the center of seam was calculated.The results sho w that this system can work steadily and reliably and meet the needs of the appl ication.