A Design of Vision-based Location Control System for Steel Rolling Mill

This paper describes a closed loop control system based on machine vision in the position control of the hot billet of steel. It is based on an industrial camera as a visual sensor that provides the position information of the steel billets in the heating kiln, and is used to detect the moving billets. To meet the requirement of a robust, real-time detection of moving billet, this paper uses the simply background subtraction model to detect the moving billets. The difference gray profile project is applied to detect the edge of the billet, and the effect is well. In the practical application, the video control system has obtained good control performance under the industrial environment.