CCD camera based automatic dimension measurement and reproduction of 3-D objects

The paper presents an automatic CCD camera vision based measurement system having capabilities to measure dimensional parameters and reproduce a 3-D object on computer numerical controlled machines (CNC). The operations of image acquisition, digitization, storage and transfer to computer are performed by the vision system. The vision system provides the required coordinates to computer for the movement of machine tools. The CNC machines integrated with the vision system form an automatic object reproduction system. This automation enhances the quality and quantity of production. The associated analysis software employs graphic techniques like edge detection, surface filling and mensuration of regular 3D objects. The linear parameter (i.e. dimensions) of the objects are obtained by area measurement using the surface filling algorithm. The measured dimensions are in the form of coordinates to be input to the CNC part program.<>