Automatic side shape measurement system for steel billet based on machine vision

The measurement system based on machine vision is composed of an array CCD, a laser transmitter, a laser receiver and an industrial computer. An array CCD is used to grab the images of side shape of steel billet. After digital images are processed, the height and thickness of the side edge of steel billet are calculated and analyzed by special software. In order to implement the control of the steel billet, abnormal images are saved and sent to external control system.