Development of a high-speed 3D geometric measuring system of vehicle wheel based on optical imaging technologies

In modern intelligent transportation, the weight and shape size of vehicle wheel are ones of the crucial fundamental quantities to ensure their conformity to design specifications serving a range of monitoring and management, from expressway inspection, and ship transportation to house applications. In this paper, an intelligent high-speed 3D geometric measuring system of vehicle wheel was developed based on optical imaging technologies. An automatic contour recognition algorithm of vehicle wheel was proposed. 3D geometric dimensional of wheel was described by a series of critical feature points in a virtual environment. At last, a series of experiments of several typical vehicle wheels have been performed to demonstrate this geometric measuring system and the final Intelligence level. This measuring system have been proven to be amenable for practical purposes through many tests so that it might be applicable to achieve vehicle wheels in a practical working environment.