an optomechanical system for illuminating and imaging selected portions of a three dimensional object having specularly reflective surfaces , including a two dimensional image sensor for receiving light reflected from the selected portions and producing an analog output signal representing a two dimensional image of the selected portions over a predetermined time period , a video digitizer for receiving and converting the analog output signal to a digital signal , and an image computer for receiving the digital signal output by the video digitizer , comparing the information obtained from the output digital signal to the stored specifications of a master of the imaged portion of the object , indicating whether the imaged object meets the specifications of the master , controlling the movement of the imaged object , and controlling the operation of the system .